10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark one)

x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Fiscal Year Ended December 31, 2012

Or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ___________ to _________

Commission File Number:   1-14447

AMCOL INTERNATIONAL CORPORATION

(Exact Name of Registrant as Specified in its Charter)

DELAWARE	36-0724340
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
2870 Forbs Avenue Hoffman Estates, Illinois (Address of principal executive offices)	60192 (Zip Code)

Registrant’s telephone number, including area code: (847) 851-1500

Securities registered pursuant to Section 12(b) of the Act:

Title of each class:	Name of Exchange on which registered:
$0.01 par value Common Stock	New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  Yes  o  No x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  Yes  o  No x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes x  No  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes x   No  o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer  x Accelerated filer  o Non-accelerated filer  o  Smaller reporting company   o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).  Yes o   No  x

The aggregate market value of the registrant’s $.01 par value Common Stock held by non-affiliates of the registrant (based upon the per share closing price of $27.68 per share on June 30, 2012, and, for the purpose of this calculation only, the assumption that all of the registrant’s directors and executive officers are affiliates) was approximately $715.8 million.

Registrant had 32,287,200 shares of $.01 par value Common Stock outstanding as of March 27, 2013.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Company’s definitive proxy statement, which will be filed with the Securities and Exchange Commission not later than 120 days after the end of the fiscal year covered by this Form 10-K, are incorporated by reference into Part III hereof.

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PART I

Item 1. Business

GENERAL

AMCOL International Corporation (together with its subsidiaries, “AMCOL,” “we,” “us” or “our”) is a leading international producer of specialty materials and related products and services for the industrial and consumer markets.  AMCOL was originally incorporated in South Dakota in 1924, reincorporated in Delaware in 1959, and is listed on the New York Stock Exchange under the ticker symbol ACO.

We operate in five segments: performance materials, construction technologies, energy services, transportation and corporate. Our performance materials segment—previously referred to as our minerals and materials segment—is a leading supplier of bentonite related products.  Our construction technologies segment—previously referred to as our environmental segment—provides products for non-residential construction, environmental and infrastructure projects worldwide.  Our energy services segment—previously referred to as our oilfield services segment—offers a range of patented technologies, products and services for both upstream and downstream oil and gas production.  Our transportation segment, which serves our domestic subsidiaries as well as third parties, is a dry van and flatbed carrier and freight brokerage service provider.  Our corporate segment includes the elimination of intersegment revenues as well as certain expenses associated with research and development, management, employee benefits and information technology activities.

A significant portion of the products sold by our performance materials segment and, to a lesser extent, our construction technologies segment, utilize a mineral called bentonite.  Bentonite has several valuable characteristics, including its ability to bind, swell, adsorb, control rheology, soften fabrics, and have its surface modified through chemical and physical reactions. We also develop applications for other specialty minerals, most significantly chromite and leonardite.

We earn revenues from the sale of finished products, provision of services, rental of equipment, and charges for shipping goods and materials to customers.  Our service revenues are derived primarily from our construction technologies, energy services, and transportation segments; our transportation segment is purely service based.

The following table sets forth the percentage of our revenues generated from each segment for each of our last three fiscal years:

	Percentage of Net Sales
	2012			2011			2010
Performance materials		50	%		51	%		50	%
Construction technologies		23	%		27	%		27	%
Energy services		26	%		21	%		19	%
Transportation		4	%		6	%		6	%
Intersegment sales		-3	%		-5	%		-2	%
		100	%		100	%		100	%

Net revenues, operating profit, assets, depreciation, depletion and amortization, capital expenditures and research and development expenditures attributable to each of our segments are set forth in our Notes to Consolidated Financial Statements included later herein.

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OUR SEGMENTS

Performance Materials Segment

Our performance materials segment is one of the world’s leading producers and suppliers of bentonite and bentonite-related products.  It also supplies chromite and leonardite, and operates more than 25 mining or production facilities worldwide.  We excel in transforming ordinary minerals and materials into extraordinary value, meeting the needs of our customers around the world.

Bentonite is a sedimentary deposit containing greater than 50% montmorillonite and is volcanic in origin. It is surface mined and then dried, crushed, sent through grinding mills where it is sized to customer requirements, and transferred to silos for automatic bagging or bulk shipment.  The processed bentonite may also be chemically modified.  Bentonite’s unique chemical structure gives it a diverse range of capabilities, enabling it to act as a thickener, sealant, binder, lubricant or absorption agent.  From a commercial standpoint, there are two primary types of natural bentonite, sodium and calcium. Sodium-bentonite is characterized by its ability to absorb large amounts of water and form viscous, thixotropic suspensions. Calcium-bentonite, in contrast, is characterized by its low water absorption and swelling capabilities and its inability to stay suspended in water. Each type of bentonite has its own unique applications.

We mine chromite, an iron chromium oxide, from open cast mines in South Africa and transport it to our nearby processing facility.  There, the chromite ore is further crushed, milled, washed, and separated from impurities. We are improving our chromite production process to manufacture a wider range of precisely specified materials to provide value to our customers’ operations and efficiency.

We mine leonardite, a form of oxidized lignite, in North Dakota and transport it to our nearby processing facility.  Its primary uses include metalcasting, drilling fluid additive, and agricultural applications.

Our performance materials segment conducts its business through wholly-owned subsidiaries and investments in affiliates and joint ventures throughout the world.  It is comprised of four key product lines: metalcasting; specialty materials; basic minerals; and pet products. Our principal products are marketed under various registered trade names, including VOLCLAY®, PANTHER CREEK®, PREMIUM GEL®, ADDITROL®, ENERSOL®, and Hevi-Sand®.

Performance Materials Product Lines

Metalcasting: In the formation of sand molds for metalcastings, sand is bonded with minerals and various other additives to yield desired casting form and surface finish. Our metalcasting products include blended mineral binders containing sodium and calcium bentonite and organic additives sold under the trade name ADDITROL®. We employ a consultative sales process to sell custom-blended mineral and non-mineral products to strengthen sand molds for casting auto parts, farm and construction equipment, oil and gas production equipment, power generation turbine castings and rail car components. Our products help our customers in the foundry and casting industry to reduce waste from metalcasting defects, improve the efficiency and recycling of sand blends in mold sand systems, and improve air quality by reducing volatile organic compound emissions.

In the ferrous casting market, we specialize in blending bentonite of various grades by themselves or with mineral binders containing sodium bentonite, calcium bentonite, seacoal and other ingredients. We also have a line of formulated additives that introduce silicon and carbon in the melt phase of the casting process.

In the steel alloy casting market, we sell a chromite product with a particle size distribution specific to a customer’s needs. One of chromite’s qualities is its ability to conduct heat. Thus, we market the product for use in making very large, high integrity, steel alloy castings where the chromite is better suited to withstand the high heat and pressure associated with the casting process.

Specialty Materials:  Our specialty materials products contain bentonite and synthetic additives offering proprietary solutions for consumer and industrial applications.  We also offer products for bio-agricultural applications.  The key markets and applications of our specialty materials products include the following:

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Fabric Care:  We supply high-grade, agglomerated bentonite and other mineral additives used in fabric care products.  We not only supply cost-effective products and additives but also provide product development capabilities to adapt to our customers’ product requirements.  Bentonite performs as a softening agent in certain powdered-detergent formulations, and it can also act as a carrier for colorants and fragrances.

Personal Care:We manufacture adsorbent polymers and purified grades of bentonite for sale to manufacturers of personal skin care products.  The adsorbent polymers are used to deliver high-value actives in skin-care products. Microsponge® and Poly-Pore® are the principal trade names under which these products are sold. Bentonite-based materials act as thickening, suspension and dispersion agent emollients.

Basic Minerals: Our basic minerals product line supplies minerals to a variety of key markets and industrial applications, including the following:

Drilling Fluid Additives: Sodium bentonite and leonardite are components of drilling fluids used in oil and gas well drilling. Bentonite imparts thickening and suspension properties that facilitate the transport of rock cuttings to the surface during the drilling process. It also contributes to a drilling fluid’s ability to lubricate the drill bit and coat the underground formations to prevent hole collapse and drill-bit seizing.  We market our drilling fluid addtives under our own and private-label trade names. At least two drilling fluid service competitors have captive bentonite operations while others are party to long-term bentonite supply agreements. The potential customers for our products, therefore, are generally limited to those service organizations that neither are vertically integrated nor have long-term supply arrangements with other bentonite producers.  Our primary trademark for this application is the trade name PREMIUM GEL®.

Ferro Alloys: A by-product of our chromite processing operations for foundry products includes a chromite ore which has physical properties suited for use in producing ferrochrome. The ore generally needs to have a chromite content in excess of 42% to meet metallurgical grade specifications. Manufacturers of stainless steel are the primary users of ferrochrome.

Other Industrial:We produce bentonite and bentonite blends for the construction industry to be used as a plasticizing agent in cement, plaster and bricks, and as an emulsifier in asphalt. We also supply bentonite to help pelletize other materials for ease of use. Examples of this application include the pelletizing of iron ore and livestock feed.

Pet Products: Our pet products include sodium bentonite-based scoopable (clumping), traditional and alternative cat litters as well as specialty pet products sold to grocery and drug stores, mass merchandisers, wholesale clubs and pet specialty stores throughout the U.S. Our scoopable products’ clump-forming capability traps urine, thereby reducing waste by allowing for easy removal of only the odor-producing elements from the litter box.  We are primarily a private-label producer of cat litter, and our products are marketed under various trade names.  These products are sold solely in the U.S. from three principal sites from which we package and distribute finished goods. Our transportation segment provides logistics services and is a key component of our capability in supplying customers on a national basis.

Sales and Distribution

In 2012, the top ten customers of our performance materials segment accounted for approximately 30% of this segment’s sales worldwide.

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The following table sets forth the percentage of our net sales generated from each product line in 2012:

	2012 Percentage of Net Sales
Metalcasting		54.0	%
Specialty materials		22.3	%
Pet products		10.8	%
Basic minerals		11.2	%
Other product lines		1.7	%
Total		100.0	%

The following table sets forth the percentage of our performance material segment’s 2012 net sales attributable to our different geographic regions:

Americas	61.1	%
EMEA(1)	17.4	%
Asia Pacific	21.5	%
	100.0	%
(1) Europe, Middle East and Africa

Our performance materials segment sells products not only to third party customers but also to our other segments, principally our construction technologies segment.  Bentonite is a material included within several products in our construction technologies segment, most notably within our lining technologies product line.

Sales and distribution of products is conducted primarily by our own employees.  Our industry-specialized sales groups and technically-oriented sales persons serve each of our major markets.  Certain of our products are distributed through networks of distributors and representatives, who warehouse specific products at strategic locations.

We believe our strong, global market position in the metalcasting industry is largely due to our technical service capabilities and our distribution network. We provide training courses and laboratory testing for customers who use our products and blends in the metalcasting process. Our technical sales personnel provide expertise not only to educate our customers on the bentonite blend properties but also to aid them in producing castings efficiently and productively.

Seasonality

We do not consider our performance materials segment to be seasonal in nature.

Construction Technologies Segment

Our construction technologies segment serves customers engaged in a broad range of construction projects, including site remediation, concrete waterproofing for underground structures, liquid containment on projects ranging from landfills to flood control, and drilling applications including foundation, slurry wall, tunneling, water well, and horizontal drilling.

Our construction technologies segment conducts its business through wholly-owned subsidiaries and joint ventures throughout the world.  This segment is comprised of four key product lines: building materials; contracting services; drilling products; and lining technologies.

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Construction Technologies Product Lines

Lining Technologies: We sell lining and other products for a variety of applications, most of which are directed to preserving or remediating environmental issues. We help customers protect ground water and soil through the sale of geosynthetic clay liner products containing bentonite. We market these products under the BENTOMAT® and CLAYMAX® trade names principally for lining and capping landfills, mine waste disposal sites, water and wastewater lagoons, secondary containments in tank farms, and other contaminated sites. We also provide associated geosynthetic materials for these applications, including geotextiles and drainage geocomposites.

Our lining technologies product line also includes specialized technologies to mitigate vapor intrusion in new building construction. Our innovative vapor barrier systems prevent potentially harmful vapors from entering occupied space, thus facilitating low-risk redevelopment.  We also provide reactive capping technologies and solutions to effectively contain residual contamination, reduce costs associated with ex-situ remedies, and aid in environmental protection. Products offered include Liquid Boot®, a liquid applied vapor barrier system; REACTIVE CORE-MAT™, an in-situ sediment capping material; ORGANOCLAY®, which absorbs organic containments; and QUIK-SOLID®, a super absorbent media

Building Materials: We offer a wide variety of active and passive waterproofing and greenroof technologies for use in protecting the building envelope of non-residential constructions, including buildings, subways, and parkway systems.  Our products include VOLTEX®, a waterproofing composite comprised of two polypropylene geotextiles filled with sodium bentonite; ULTRASEAL®, an advanced membrane using a unique active polymer core; and COREFLEX®, featuring heat-welded seams for protection of critical infrastructure. In addition to these membrane materials, we also provide roofing products and a variety of sealants and other accessories required to create a functional waterproofing system.

Drilling Products: Our drilling products are used in environmental and geotechnical drilling applications, horizontal directional drilling, mineral exploration and foundation construction. The products are used to install monitoring wells, facilitate horizontal and water well drilling, and seal abandoned exploration drill holes. VOLCLAY GROUT™, HYDRAUL-EZ®, BENTOGROUT® and VOLCLAY TABLETS™ are among the trade names for products used in these applications. Ground source heat loop systems utilizing GEOTHERMAL GROUT™ represent a developing area for drilling products. We also offer a range of drilling products used in the excavation of foundations for large buildings, bridges and dams; these products include SHORE PAC® and PREMIUM GEL®.

 Contracting Services: Contracting services, which involve installation of products, are occasionally offered to customers for select projects.

Sales and Distribution

On an individual customer basis, we generated less than $5 million of sales from each of the top five customers in the construction technologies segment.

The following table sets forth the percentage of our net sales generated from each product line in 2012:

	2012 Percentage of Net Sales
Lining technologies		41.2	%
Building materials		34.0	%
Drilling products		16.4	%
Contracting services		8.4	%
Total		100.0	%

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The following table sets forth the percentage of our construction technologies segment’s 2012 net sales attributable to our different geographic regions:

Americas	48.7	%
EMEA	41.1	%
Asia Pacific	10.2	%
	100.0	%

Our building materials products are sold through our own sales professionals as well as through an integrated distributor and dealer network. The end-users of these products are generally building sub-contractors who are responsible for installing the products. These products include a longer term warranty in instances where we can control or monitor the installation of the final product on the job site.  Our sales and technical staff typically assist project designers by providing technical data to engineers and architects who specify our products in the design of building structures.

Our drilling products are generally sold through an extensive distribution network coordinated by our regional sales managers. The end customers for these products are typically small well drilling companies and general contractors.

Sales and distribution of our lining technologies products are primarily performed through our own personnel and facilities. Our staff includes sales professionals and technical support engineers who analyze the suitability of our products in relation to the customer’s specific application and the conditions that products will endure or the environment in which they will operate.

Seasonality

Most of the products in our construction technologies segment are impacted by weather and soil conditions. Many of the products cannot be applied in wet or winter weather conditions and, as such, sales and profits tend to be greater during the period from April through October. As a result, we consider the business of this segment to be seasonal.

Energy Services Segment

Our energy services segment provides services to improve the production, costs, compliance, and environmental impact of activities performed in the oil and gas industry.  Operating as CETCO Energy Services, we offer a range of patented technologies, products and services for all phases of oil and gas production, transportation, refining, and storage throughout the world.  We provide both land-based and offshore water treatment, well testing, pipeline separation, nitrogen, coil tubing and other services to the oil and gas industry. We provide our services through subsidiaries located in Australia, Brazil, Malaysia, Nigeria, the United Kingdom, and the U.S., principally in the Gulf of Mexico and the surrounding on-shore area.

Principal Services.  The following are the principal services we provide:

Water Treatment: We help customers comply with regulatory requirements by providing equipment, technologies, personnel and filtration media to treat waste water generated during oil production.

Coil Tubing:  Our coil tubing services utilize metal piping which comes spooled on a large reel.  We provide both equipment and operating personnel to perform services ranging from acid stimulation, reverse circulation, cementing, pressure control, nitrogen injection, and other operations that involve pumping fluids into a well.  Horizontal wells and shale completions are a large component of our operations.

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Well Testing:  We provide equipment and personnel to help customers control well production as well as to clean up, unload, separate, measure component flow, and dispose of fluids from oil and gas wells.

Nitrogen Services:  Liquid nitrogen is commonly used in the pipeline, refinery, and oil and natural gas industry. By providing liquid nitrogen that is then changed into nitrogen gas with our personnel and mobile equipment, we help customers perform maintenance activities in a safe environment on their production platforms, pipeline operations, and refineries.  These services are provided in jetting wells that are loaded with fluid; stimulating wells, including fracturizing and acidizing; displacing completion fluids prior to perforating; inflating flotation devices for offshore installations; and pressure testing and other maintenance activities.

Pipeline: Our personnel utilize engineered equipment that separates, filters, cleans and allows treatment of effluents arising from pipeline testing and maintenance activities.

Sales and Distribution

The top ten customers in our energy services segment accounted for 47% of the segment sales worldwide in 2012 with no individual customer greater than 10% of this segment’s sales.  However, the composition of customers within this group varies from year to year and is significantly dependent on the type of activities each customer is undertaking within the year, regulations, and overall dynamics of the oil and gas industry. Approximately 80% of sales are in the Americas. Our largest geographical market is the U.S., and more specifically the Gulf of Mexico region. Approximately 14% of sales are in the Asia-Pacific region and 6% are in EMEA.

Employees in this segment primarily sell our services on a direct basis. Our principal customers are companies who maintain substantial drilling and production operations for both oil and natural gas.

Seasonality

Much of the business in the energy services segment is impacted by weather conditions. Our business is concentrated in the Gulf of Mexico and surrounding states where our customers’ oil and gas production facilities are subject to natural disasters, such as hurricanes. Given this, our sales could be lower in the June to November months. It can also experience periods of growth after a hurricane as customers require our services to start their operations back up.

Transportation Segment

We operate a long-haul trucking business—Ameri-Co Carriers, Inc.— and a freight brokerage business—Ameri-Co Logistics, Inc.—primarily for delivery of finished products throughout the continental U.S. These services are provided to our subsidiaries as well as third-party customers. By having a captive transportation business, we are better able to control costs, maintain delivery schedules and assure equipment availability in the delivery of our products. In 2012, approximately 50% of the revenues of this operation involved domestic services provided to our performance materials and construction technologies segments.

MINERAL RESERVES AND MINING

Mineral Reserves

We have reserves of sodium and calcium bentonite at various locations in the U.S., including Wyoming, South Dakota, Montana and Alabama, as well as in Australia, China, and Turkey. Through our investments in affiliates and joint ventures, we also have access to bentonite deposits in Egypt, India, and Mexico. Assuming the continuation of our 2012 consumption rates and product mix, we have proven, assigned reserves of commercially usable sodium bentonite for the next 35 years.  Under the same assumptions, we have proven, assigned reserves of commercially usable calcium bentonite for the next 10 years. While we believe that our reserve estimates are reasonable and our title and mining rights to our reserves are valid, we have not obtained any independent verification of such reserve estimates or such title or mining rights.

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We own or control the properties on which our reserves are located through long-term leases, royalty agreements (including easement and right of way agreements) and patented and unpatented mining claims. A majority of our bentonite reserves are owned. No single or group of mining claims or leases is significant or material to the financial condition or operations of our Company or our segments.

The majority of our current bentonite mining in the U.S. occurs on reserves where our rights to such reserves accrues to us through over eighty mining lease and royalty agreements and 2,000 mining claims. The majority of these are with private parties and located in Montana, South Dakota and Wyoming. The bentonite deposits underlying these claims and leases generally lie in parcels of land varying between 20 and 40 acres.

In general, our bentonite reserves are immediately adjacent to, or within sixty miles of, one of seven related processing plants. All of the properties on which our reserves are located are either physically accessible for the purposes of mining and hauling or the cost of obtaining physical access would not be material. Access to processing facilities from the mining areas is generally by private road, public highways, or railroads. For each leased property and mining claim, there are multiple means of access.

To retain possessory rights in unpatented mining claims in North America, a fee of $140 per year per 20 acres for each unpatented mining claim is required. The validity of title to unpatented mining claims is dependent upon numerous factual matters. We believe that the unpatented mining claims that we own are in compliance with all applicable federal, state and local mining laws, rules and regulations. We are not aware of any material conflicts with other parties concerning our claims. From time to time, members of Congress and members of the executive branch of the federal government have proposed amendments to existing federal mining laws. The various amendments would have had a prospective effect on mining operations on federal lands and include, among other things, the imposition of royalty fees on the mining of unpatented claims, the elimination or restructuring of the patent system and an increase in fees for the maintenance of unpatented claims. To the extent that future proposals may result in the imposition of royalty fees on unpatented lands, the mining of our unpatented claims may become uneconomic and royalty rates for privately leased lands may be affected. We cannot predict the effect any potential amendments may have or whether or when any such amendments might be adopted.

We maintain a continuous program of worldwide exploration for additional reserves and attempt to acquire reserves sufficient to replenish our consumption each year, but we cannot assure that additional reserves will continue to become available.

We oversee all of our mining operations, including our exploration activity and securing the necessary permits from appropriate government agencies.

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The following table shows a summary of our mineral sales from active mining areas for the last 3 years in short tons, as well as mineral reserves by major mineral category.

	Tons Sold (000s)						Wet Tons		Assigned			Unassigned						Mining Claims
	2012		2011		2010		of Reserves		Reserves			Reserves			Conversion			Owned			Unpatented			Leased
							(000s)		(000s)			(000s)			Factor						**
Sodium Bentonite
Assigned
Australia		17		13		9		1,427		1,427			-			80	%		-			-			1,427
Belle/Colony, WY/SD		1,144		1,125		1,121		44,652		44,652			-			77	%		4,521			2,157			37,974
Lovell, WY		590		598		605		29,477		29,477			-			86	%		14,915			11,437			3,125
TOTAL ASSIGNED		1,751		1,736		1,735		75,556		75,556			-						19,436			13,594			42,526
Unassigned
SD, WY, MT		-		-		-		61,373		-			61,373			82	%		54,811			3,594			2,968
TOTAL UNASSIGNED		-		-		-		61,373		-			61,373						54,811			3,594			2,968
TOTAL SODIUM BENTONITE		1,751		1,736		1,735		136,929		75,556			61,373						74,247			17,188			45,494
										55	%		45	%					54	%		13	%		33	%
Calcium Bentonite
Assigned
Chao Yang, Liaoning, China		374		351		261		1,507		1,507			-			78	%		-			-			1,507
Nevada		-		2		2		535		35			500			75	%		35			500			-
Sandy Ridge, AL		82		91		89		5,959		5,959			-			76	%		1,707			-			4,252
Turkey		160		140		134		972		972			-			77	%		-			-			972
TOTAL ASSIGNED		616		584		486		8,973		8,473			500						1,742			500			6,731
Unassigned
Vici, OK		-		-		-		99		-			99			76	%		-			-			99
TOTAL UNASSIGNED		-		-		-		99		-			99						-			-			99
TOTAL CALCIUM BENTONITE		616		584		486		9,072		8,473			599						1,742			500			6,830
										93	%		7	%					19	%		6	%		75	%
Leonardite
Gascoyne, ND		50		52		52		719		719			-			73	%		-			-			719
										100	%														100	%
Chromite
South Africa		145		121		122		1,355		1,355			-			75	%		1,355			-			-
Other
Nevada		-		-		-		2,997		-			2,997			80	%					-			2,997
GRAND TOTALS		2,562		2,493		2,395		151,072		86,103			64,969						77,344			17,688			56,040
										57	%		43	%					51	%		12	%		37	%

**      Quantity of reserves that would be owned if patent was granted.

Assigned reserves are reserves which could be reasonably expected to be processed in existing plants. Unassigned reserves are reserves which will require additional expenditures for processing facilities. Conversion factor is the percentage of reserves that will be available for sale after processing. Our estimates of assigned and unassigned reserves in the above table require us to make certain key assumptions. These assumptions relate to consistency of clay beds in relation to drilling samples obtained with respect to both quantity and quality of reserves contained therein; the ratio of overburden to mineral deposits; any environmental or social impact of mining the minerals; and profitability of extracting those minerals, including haul distance to processing plants, applicability of minerals to various end markets and selling prices within those markets, and our past experiences in the mineral beds, several of which we have been operating in for over 80 years. We estimate that available supplies of other materials utilized in our performance materials business are sufficient to meet our production requirements for the foreseeable future.

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Mining and Processing

Bentonite is surface mined, generally with large earthmoving scrapers, and then loaded into trucks and off-highway-haul wagons for movement to processing plants. The mining and hauling of our clay is done by us and by independent contractors.

At the processing plants, bentonite is dried, crushed and sent through grinding mills, where it is sized to customer requirements, then chemically modified where needed and transferred to silos for automatic bagging or bulk shipment. Most of the production is shipped as processed rather than stored for inventory.

Chromite is mined from open cast pits from our property in South Africa and transported to our nearby processing facility. In our facility, the ore is further crushed, milled, washed, and separated from impurities. We are improving our South African production facility to give it the ability to manufacture a range of precisely specified materials, such as ones with specific particle sizes, that provide value to our customer’s operations and efficiency.

COMPETITION

We believe that we are one of the largest global producers of bentonite products. Our performance materials segment competes with our substantial domestic and international competition on the basis of product quality, price, logistics, service and technical support. There are numerous major producers of competing products and various regional suppliers in the areas we serve. Some of our competitors, especially in the chromite market, are companies primarily in other lines of business with substantially greater financial resources than ours.

Our lining technologies product line competes with geosynthetic clay liner manufacturers worldwide, several suppliers of alternative lining technologies, and providers of soil and environmental remediation solutions and products. The building materials product line competes in a highly fragmented market comprised of a wide variety of alternative technologies. A number of integrated bentonite companies compete with our drilling products. Competition for all product lines is based on product quality, service, price, technical support and product availability.

Our energy services segment competes with other oil and gas services companies. Several of these competitors have significantly more resources than we do and consequently may be better able to compete in periods of economic downturn, especially in terms of selling prices. However, we believe we offer several competitive advantages, especially in the area of water treatment services, due to superior and innovative technologies that we have developed internally and the combination of services that we can provide.

INTELLECTUAL PROPERTY

We hold a number of U.S. and international patents, and we obtain patents on new technologies and applications when appropriate.  However, we do not believe that any one or any combination of such patents is material to our business as a whole.

ENVIRONMENTAL, HEALTH AND SAFETY MATTERS

Our operations are subject to a variety of national (including federal, state, and local) and international laws and regulations relating to environmental, health and safety (“EHS”) matters. Numerous governmental departments issue rules and regulations to implement and enforce such regulations that are often complex and costly to comply with and that carry substantial administrative, civil and possibly criminal penalties for noncompliance.  Under these evolving laws and regulations, we may be liable for remediation or removal costs, damages and other costs associated with releases of hazardous materials into the environment, and such liability may be imposed on us even if the acts that resulted in the releases were in compliance with all applicable laws at the time such acts were performed.  In particular, we are subject to certain requirements under theClean Air Act. Our production processes involve the grinding and handling of dried clay, which generates dust. All of our plants are equipped with dust collection systems. We have not had, and do not presently anticipate, any significant regulatory problems in connection with our dust emission, though we expect ongoing expenditures for the maintenance of our dust collection systems and required annual fees. We have expended, and anticipate that we will continue to expend, financial and managerial resources to comply with EHS regulations.

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We are also subject to land reclamation requirements.  Because reclamation of exhausted mining sites has been a regular component of our surface mining operations since 1973, maintaining compliance with current reclamation-related regulation has not materially affected our mining costs.  Our reclamation costs are included in the cost of the bentonite sold.

While the costs of compliance with, and penalties imposed under, these EHS laws historically have not had a material adverse effect on us, future events, such as changes in or modified interpretations of existing laws and regulations, enforcement policies, or further investigation or evaluation of potential health hazards of certain products, may give rise to additional compliance and other costs that could have a material adverse effect on us.

EXPORT SALES AND FOREIGN OPERATIONS

Approximately 36% of our 2012 net sales were generated in countries outside the Americas. Our foreign operations have typically comprised about a third of our income from continuing operations before income taxes, income from affiliates and joint-ventures, and non-controlling interests. Of our tons sold from our domestic mineral deposits in 2012, approximately 24% of these shipments were made to our sister companies and third party customers located outside the United States as compared to 17% and 21% in 2011 and 2010, respectively.

We maintain mineral processing plants in the United Kingdom, China, Australia, South Korea, Poland, Thailand, South Africa and Turkey. Chartered vessels deliver large quantities of our bulk, dried U.S. sodium bentonite to the plants outside the U.S. where it is processed and mixed with other clays and distributed throughout EMEA and the Asia-Pacific region. We manufacture geosynthetic clay liners in the United Kingdom, Spain, Poland, China, South Korea and India. These international operations provide a cost-effective means of supplying the EMEA and Asia-Pacific markets. In addition, we maintain a worldwide network of independent dealers, distributors, and representatives to support sales and distribution.

Our Energy Services segment maintains offices and operations centers in Australia, Brazil, Malaysia, Nigeria and Scotland to service customers in those local markets.

See Notes to our Consolidated Financial Statements included in Item 8 of this report for additional geographic data relating to our business.

EMPLOYEES

As of December 31, 2012, we employed 2,824 people in our global organization, 1,363 of whom were employed outside of the United States. Operating plants are adequately staffed, and no significant labor shortages are presently foreseen. Labor relations have been satisfactory.

AVAILABLE INFORMATION

We file annual, quarterly and current reports, proxy statements and other information with the SEC. You may read and copy any reports, statements and other information filed by the Company at the SEC’s Public Reference Room at 100 F. Street N.E., Washington, D.C., 20549. Please call (800) SEC-0330 for further information on the Public Reference Room. The SEC maintains a website that contains reports, proxy and information statements and other information regarding issuers that file electronically with the SEC. Our filings are available to the public at this website, www.sec.gov.

Our principal Internet address is www.amcol.com. Our annual, quarterly and current reports, and amendments to those reports, are available free of charge on www.amcol.com, as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC.

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Item 1A. Risk Factors

Certain statements we make from time to time, including statements in the Management’s Discussion and Analysis of Financial Condition and Results of Operations section hereafter, constitute “forward-looking statements” made in reliance upon the safe harbor contained in Section 21E of the Securities Exchange Act of 1934, as amended.  Such forward-looking statements include statements relating to our Company or our operations that are preceded by terms such as “expects,” “believes,” “anticipates,” “intends” and similar expressions, and statements relating to anticipated growth, acquisitions, levels of capital expenditures, future dividends, expansion into global markets and the development of new products.  Such forward-looking statements speak only as of the date hereof and are not guarantees of future performance and involve risks and uncertainties.  Our actual results, performance or achievements could differ materially from the results, performance or achievements expressed in, or implied by, these forward-looking statements as a result of various factors.  We undertake no duty to update any forward-looking statements to conform the statements to actual results or changes in our expectations.

A number of risks will challenge us in meeting our long-term profit and strategic objectives, and there can be no assurance that we will achieve success in implementing any one or more of them.  Specifically, the risks outlined below could affect the achievement of our expected results.  In addition, political, economic, or credit crises occur from time to time in our geographic markets, and these crises could affect or heighten the risks outlined below, especially with regard to our reliance on key industries, the volatility of our stock price, and increased exchange rate sensitivity.  The credit crisis may also affect our ability to obtain capital or finance acquisitions or other activities on terms substantially similar to our current debt facilities should that need arise in the future.  Any of these factors or the risks outlined below could affect our business opportunities and results:

Reliance on Metalcasting & Construction Markets

Approximately 54% of our performance materials segment’s sales in 2012 were to the metalcasting market.  Our construction technologies segment’s sales are predominantly derived from the commercial construction and infrastructure markets.  All of these markets depend heavily upon the strength of the domestic and international economies. If these economies weaken, demand for our products sold to these markets may decline and our business or future financial results may be adversely affected.

Susceptibility to Oil and Natural Gas Markets

Revenues from our energy services segment in 2012 represent 26% of consolidated revenues and 29% of consolidated operating income.  Oil and natural gas production activities are heavily influenced by the benchmarkprice of these commodities, which can be influenced by both economic and political events and, in turn, affect our customers’ demand for our products and services.  Thus, the benchmark prices of oil and natural gas may ultimately affect the performance of this segment.

In addition, oil and natural gas exploration and production activities depend heavily on the location of these natural resources within the earth’s geology and geographic location as well as technologies available to profitably extract them.  For example, the recent application of horizontal drilling technologies allow oil and natural gas production companies to extract significantly greater amounts of oil and natural gas in geological deposits located in areas where we currently do not have a significant presence.  Thus, the performance of our energy services segment is affected by changes in technologies, locations of customers’ targeted reserves, and competition in various geographic markets.

Sensitivity to Energy and Petroleum Related Products

We purchase a significant amount of raw materials which are derived from petrochemical products.  Our production processes also consume a significant amount of energy, primarily electricity, diesel fuel, natural gas and coal.  We use diesel fuel to operate our mining and processing equipment and our freight costs are heavily dependent upon fuel prices and surcharges.

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On a combined basis, these factors represent a large exposure to petrochemical and energy products which may be subject to significant price fluctuations.  While we have been successful in attaining price increases in certain markets to offset some of these rising costs, there can be no assurance that we will be successful in continuing to achieve these price increases or protecting our margins.

Availability and Cost of Shipping

We rely on shipping bulk cargos of bentonite from the United States and China to customers, as well as our own subsidiaries, and we are sensitive to our ability to recover these shipping costs.  In the last few years, bulk cargo shipping rates have been very volatile, and, to a lesser extent, the availability of bulk cargo containers has been suspect.  If we can not secure our container requirements or offset additional shipping costs with price increases to customers, our profitability could be impacted.

Seasonality of Our Energy Services and Construction Technologies Segments

Our energy services and construction technologies segments are affected by seasonal weather patterns.  A majority of our energy services revenues are derived from the Gulf of Mexico and surrounding states, which are susceptible to hurricanes that typically occur June 1st through November 30th.  In addition, it is affected by customers’ demands for natural gas.  Natural gas is affected by weather patterns as colder winters increase the demand for natural gas to heat homes and warmer summers increase the demand for natural gas to fuel generators providing electricity to run air conditioners.  Actual or threatened hurricanes or changes in the demand for natural gas can result in volatile demand for services provided by our energy services segment.

Our construction technologies segment is affected by weather patterns which determine the feasibility of construction activities.  Typically, less construction activity occurs in winter months and thus this segment’s revenues tend to be greatest in the second and third quarters when weather patterns in our geographic markets are more conducive to construction activities.

Cyclicality of Our Segments

All of our segments are affected by economic cycles.  During periods of economic slowdown, our customers often reduce their capital expenditures and defer or cancel pending projects.  Such developments occur even amongst customers that are not experiencing financial difficulties.  These risks are more predominant in our construction technology and performance materials segments.

In our construction technologies segment, the construction and infrastructure markets are heavily dependent upon the strength of domestic and international economies.  In our performance materials segment, the metalcasting market is dependent upon the demand for castings for automobile components, farm and construction equipment, oil and gas production equipment, power generation turbine castings, and rail car components.  Many of these types of equipment are sensitive to fluctuations in demand during periods of recession or tough economies, which ultimately may affect the demand for our construction technologies and performance materials segments’ products and services.

Moreover, in periods of lower economic productivity or recession, oil and natural gas prices tend to decrease, which in turn causes exploration companies to reduce their capital expenditures and production and exploration activities.  This has the effect of decreasing the demand and increasing competition for the services that our energy services segment provides.

Risks of International Expansion & Operation

An important part of our business strategy is to expand internationally by establishing a presence in new markets when possible or through acquisitions, joint ventures or other strategic alliances.  Sales and earnings from our overseas operations have increased considerably in recent years and comprise a significant portion of our financial results, including our joint ventures.  As we expand and operate internationally, we will be subject to a myriad of risks, especially in less developed countries whose economies increase at rates faster than more developed nations.  These risks relate to currency exchange rates, political and economic environments, business and trade laws, and regulatory and compliance issues.  These risks are beyond our control and can lead to sudden, and potentially prolonged, changes in demand for our products, difficulty in enforcing agreements, losses in the realizability of our assets, or fluctuations in our earnings due to the impact from our joint ventures.

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Regulatory and Legal Matters

Our operations are subject to various federal, state, local and foreign laws and regulations, including those related to EHS matters.  Substantial penalties may be imposed if we violate certain of these laws and regulations, even if the violation was inadvertent or unintentional.  If these laws or regulations are changed or interpreted differently in the future, it may become more difficult or expensive for us to comply.  In addition, investigations or evaluations of our products by government agencies may require us to adopt additional safety measures or precautions.  If our costs to comply with such laws and regulations in the future materially increase, our business and future financial results could be materially and adversely affected.  We may also be subject to adverse litigation results in addition to increased compliance costs arising from future changes in laws and regulations that may negatively impact our operations and profits.  Last, certain of our customers are subject to various federal and foreign laws and regulations relating to environmental and health and safety matters, especially our energy services customers who are subject to drilling permits, wastewater disposal and other regulations.  To the extent that these laws and regulations affecting our customers change, demand for our products and services could also change and thereby affect our financial results.

Ability to Complete, Integrate & Finance Acquisitions

Our business strategy includes pursuing acquisitions of complementary businesses, through either our own wholly-owned subsidiaries or our investments in affiliates and joint ventures.  The success of any future acquisitions or investments will be dependent upon our ability to locate attractive businesses at a reasonable price and our ability to successfully integrate them into our existing operations.

In addition, we have typically financed our acquisitions and investments with debt available to us under our various credit facilities and our ability to issue new debt.  We may or may not be able to secure such debt financing on terms substantially similar to our current facilities.  In the future, we may even decide to pay all or a portion of the purchase price of any future acquisition or investment with shares of our common stock.  If we use our common stock in this way, the price of our stock may decrease.

Ability to Pay Dividends

We currently declare and pay regular cash dividends on our common stock.  Any future payment of cash dividends will depend upon our financial condition, earnings, legal requirements, restrictions in our debt agreements and other factors deemed relevant by our board of directors.  Our board of directors may decrease or discontinue payment of dividends at any time.

Impact of Competition

Our businesses have many competitors, some of whom are larger and have more resources than we do.  We also face competition for some of our products from alternative products, and some of the competition we face comes from competitors in lower-cost production countries like China and India.  Many factors could change the level of competition we face in our markets, which could result in decreased demand for our products and services and negatively affect our financial performance.

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Item 1B. Unresolved Staff Comments

We have received no written comments regarding our periodic or current reports from the staff of the SEC that were issued 180 days or more preceding the end of our 2012 fiscal year and that remain unresolved.

Item 2. Properties

We operate the following principal plants, mines and other facilities, all of which are owned, except as noted below.  We also have numerous other facilities which blend ADDITROL ®, package cat litter and chromite sand, warehouse products and serve as sales offices.

LOCATION	PRINCIPAL FUNCTION
PERFORMANCE MATERIALS
Colony, WY (two plants)	Mine and manufacture sodium bentonite, package cat litter
Lovell, WY (1)	Mine and manufacture sodium bentonite
Sandy Ridge, AL	Mine and manufacture calcium bentonite; blend ADDITROL®
Chao Yang, Liaoning, China	Mine and manufacture calcium bentonite
Enez, Turkey	Mine and manufacture calcium bentonite
Laemchabang, Thailand	Manufacture sodium and calcium bentonite and laundry care products
Ruighoek Farm, Northwest Province, South Africa	Mine and manufacture chromite ore
Yangbuk-Myeun, Kyeung-buk, South Korea	Manufacture metalcasting products
Tianjin, China	Manufacture metalcasting and laundry care products
Winsford, Cheshire, U.K.	Manufacture bentonite,  other minerals, and laundry care products
CONSTRUCTION TECHNOLOGIES
Cartersville, GA	Manufacture components for geosynthetic clay liners; manufacture Bentomat® and Claymax® geosynthetic clay liners; manufactures other building materials products
Lovell, WY (1)	Manufacture Bentomat® and Claymax® geosynthetic clay liners and other building materials products
Birkenhead, Merseyside, U.K. (1)(2)	Manufacture Bentomat® geosynthetic clay liner; research laboratory; headquarters for CETCO (Europe) Ltd.
Segovia, Spain	Manufacture Bentomat® geosynthetic clay liners
Suzhou, China	Center for China operations; manufactures lining and waterproofing products for China and greater Asian markets
Szczytno, Poland	Manufacture Bentomat® and Claymax® geosynthetic clay liners
ENERGY SERVICES
Beckville, TX (2)	Well testing services
Broussard, LA (2)	Central operations and distribution
Covington, LA (2)	Headquarters
Driscoll, TX (2)	Coil tubing services
Harvey, LA (2)	Nitrogen sales and service
Kenamen, Malaysia (2)	Filtration services and sales
New Iberia, LA (2)	Coil tubing services
Springtown, TX (2)	Well testing services
TRANSPORTATION
Scottsbluff, NE	Transportation headquarters and terminal
CORPORATE
Hoffman Estates, IL (2)	Corporate headquarters; Construction Technologies headquarters; Performance Materials headquarters; research laboratory

(1)  Shared facilities between performance materials and construction technologies segments.

(2)  Certain offices and facilities are leased.

We consider our plants in the Western U.S. to be of strategic importance given their production capacity, products manufactured, and proximity to our mineral reserves.  All of our pet products are manufactured either in our Lovell, WY plant or one of our Colony, WY plants given their granularization capabilities and the fact that their location provides freight cost savings to key customers.  Our Sandy Ridge, AL facility supplies calcium bentonite to our U.S. blending plants as an ingredient for production of ADDITROL®.  The blending plants have collective importance since they produce customized products for metalcasting customers.

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Item 3. Legal Proceedings

We are party to a number of lawsuits arising in the normal course of our business.  Our energy services segment is also party to two lawsuits alleging damages caused by our coiled tubing operations in Louisiana; one lawsuit alleges damages of $28 million and the other of $9 million.  To date, we have not incurred significant costs in defending these matters.  We believe we have adequate insurance coverage and do not believe that any of the aforementioned pending litigation will have a material adverse impact on our financial condition, liquidity or results of our operations.

We have neither been nor expect to be assessed any tax shelter penalties by the United States Internal Revenue Service for tax shelter transactions that either the IRS deems abusive or have significant tax avoidance penalties.

Item 4. Mine Safety Disclosures

The information concerning mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K is included in Exhibit 95.1 to this Form 10-K.

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Executive Officers of Registrant

NAME	AGE	PRINCIPAL OCCUPATION FOR LAST FIVE YEARS
James W. Ashley	63	Vice President and General Counsel of the Company since January 2012; prior thereto, Partner at Locke Lord LLP since 2008; prior thereto, Partner at Lord Bissell & Brook LLP.
Patrick E. Carpenter	50	Vice President of the Company and President of the construction technologies segment since January 2012; prior thereto, Vice President of Business Development of Colloid Environmental Technologies Company from January 2010 through December 2011, and its Vice President of Construction Materials from January 2007 through December 2009.
Gary L. Castagna	51	Senior Vice President of the Company and President of our performance materials segment since May 2008; prior thereto, Senior Vice President, Chief Financial Officer and Treasurer of the Company since February 2001; prior thereto, a consultant to AMCOL since June 2000;  prior thereto, Vice President of the Company and President of Chemdal International Corporation (this business is a former subsidiary of AMCOL, and consisted of the absorbent polymers business that was sold to BASF AG in June 2000) since August 1997;  since January 2000, Director of M~Wave Incorporated, a manufacturer and distributor of printed circuit boards.
Michael R. Johnson	54	Vice President of the Company since January 2010; President of the energy services segment since 2003; prior thereto, Vice President of CETCO Oilfield Services since 2000.
Ryan F. McKendrick	61	Chief Executive Officer of the Company since January 1, 2011; prior thereto, Chief Operating Officer of the Company since January 1, 2010; prior thereto, Senior Vice President of the Company and President of our environmental segment since November 1998; and President of Volclay International Corporation since 2002.
Donald W. Pearson	51	Senior Vice President, Chief Financial Officer and Treasurer of the Company since May 2008; prior thereto, Vice President Finance, UPM - Kymmene Corporation North America (a large forest products company), May 2006 through May 2008; Financial Controller UPM - Kymmene Corporation North America, February 2004 through May 2006; prior thereto, Senior Vice President, Business Planning, Information Resources, Inc. (an information services provider), August 2000 through February 2004.

All executive officers of the Company are elected annually by the Board of Directors for a term expiring at the annual meeting of directors following their election or when their respective successors are elected and shall have qualified.

PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Our common stock trades on the New York Stock Exchange under the symbol “ACO.”  The following table sets forth, for the periods indicated, the high and low sale prices of the common stock, as reported by the New York Stock Exchange, and cash dividends declared per share.

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		Stock Price				Cash Dividends
		High		Low		Declared Per Share
	1st Quarter	$	30.96	$	25.93	$	0.18
Fiscal Year Ended December 31, 2012:	2nd Quarter		34.27		26.63		0.18
	3rd Quarter		36.23		27.70		0.20
	4th Quarter		34.68		28.26		0.20
	1st Quarter	$	36.00	$	28.92	$	0.18
Fiscal Year Ended December 31, 2011:	2nd Quarter		38.62		32.45		0.18
	3rd Quarter		39.85		23.37		0.18
	4th Quarter		35.09		21.60		0.18

We have paid cash dividends every year since 1938.  As of February 13, 2013, there were approximately 10,794 holders of record of the common stock, including shares held in street name.

Purchases of Equity Securities

We did not repurchase any of our outstanding common stock in 2012.

Equity Compensation Plan Information

The following table summarizes information about our equity compensation plans as of December 31, 2012. All outstanding awards relate to our common stock. Shares issued under all of the following plans may be from the Company’s treasury, newly issued or both.

Plan category	Number of securities to be issued upon exercise of outstanding options, warrants and rights			Weighted-average exercise price of outstanding options, warrants and rights		Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in the first column)
Equity compensation plans approved by security holders		1,633,405	(1)	$	26.22		1,174,137	(2)
Equity compensation plans not approved by security holders		N/A			N/A		N/A
Total		1,633,405	(1)	$	26.22		1,174,137	(2)

(1)           Includes stock options and  stock settled appreciation rights issued and outstanding under the following AMCOL plans: 1998 Long-Term Incentive Plan; 2006 Long-Term Incentive Plan; and 2010 Long-Term Incentive Plan.

(2)           Subject to issuance pursuant to our 2010 Long-Term Incentive Plan.

Performance Graph

The graph below sets forth a comparison of cumulative total shareholder returns for the past five years for: (i) our stock as traded on the NYSE, (ii) the S&P SmallCap600 Index, and (iii) a custom peer group of publicly traded companies selected in good faith by us (the “Peer Group”).  The graph assumes that $100 was invested at the close of business on December 31, 2007.  All returns were calculated assuming dividend reinvestment on a quarterly basis.  The returns of each company in the Peer Group have been weighted according to market capitalization.  We believe the Peer Group is representative of companies whose businesses, sales sizes, market capitalization and stock trading volumes are similar to AMCOL.  The Peer Group consists of the following companies:  Compass Minerals International, Inc., Dycom Industries, Inc., Lufkin Industries, Inc., Martin Marietta Materials Inc., Minerals Technologies Inc., Oil-Dri Corporation, Rockwood Holdings Inc., RPM International Inc., and Superior Energy Services Inc.

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Item 6. Selected Financial Data

The following is selected financial data for the Company for each of the below annual periods ending December 31st.

 SUMMARY OF OPERATIONS

(In thousands, except ratios and share and per share amounts)

	2012			2011				2010			2009				2008
Operations Data
Net sales	$	985.6			$	943.8		$	826.3			$	687.5		$	851.6
Gross profit		271.1				252.3			214.2				184.3			219.2
Selling, general and administrative  expenses		173.0				166.2			145.2				135.0			143.5
Operating profit		98.1				86.1			69.0				49.3			75.7
Net interest expense		(10.4	)			(11.0	)		(9.6	)			(12.0	)		(12.2	)
Net other income (expense)		(3.4	)			0.2			1.3				(0.3	)		(5.5	)
Pretax income		84.3				75.3			60.7				37.0			58.0
Income taxes		23.3				20.8			20.3				5.4			13.9
Income (loss) from affiliates and joint ventures		3.9				5.2			(11.0	)			-			(21.7	)
Income from continuing operations		64.9				59.7			29.4				31.6			22.4
Discontinued operations		-				(1.2	)		(0.9	)			0.3			1.9
Net income		64.9				58.5			28.5				31.9			24.3
Net income attributable to AMCOL shareholders		65.1				58.5			29.2				32.0			24.5
Per Share Data
Basic earnings (loss) per share attributable to AMCOL shareholders
Continuing operations		2.03				1.89			0.97				1.03			0.75
Discontinued operations		-				(0.04	)		(0.03	)			0.01			0.06
Net income		2.03				1.85			0.94				1.04			0.81
Diluted earnings (loss) per share attributable to AMCOL shareholders
Continuing operations		2.01				1.86			0.96				1.02			0.73
Discontinued operations		-				(0.04	)		(0.03	)			0.01			0.06
Net income		2.01				1.82			0.93				1.03			0.79
Dividends		0.76				0.72			0.72				0.72			0.68

Continued…

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SUMMARY OF OPERATIONS

(In thousands, except ratios and share and per share amounts)

	2012			2011			2010			2009			2008
Shares Outstanding Data
End of period		32,184,110			31,728,969			31,032,791			30,773,908			30,437,984
Weighted average for the period-basic		32,050,538			31,708,949			31,178,813			30,764,282			30,445,882
Incremental impact of stock equivalents		347,827			436,824			368,778			269,432			543,751
Weighted average for the period-diluted		32,398,365			32,145,773			31,547,591			31,033,714			30,989,633
Balance Sheet Data (at end of period)
Current assets	$	429.5		$	406.5		$	355.1		$	293.1		$	371.3
Net property and equipment		301.9			273.5			271.7			248.3			191.5
Other long-term assets		179.2			169.1			180.5			205.4			182.4
Total assets		910.6			849.1			807.3			746.8			745.2
Current liabilities		114.5			118.0			112.5			92.1			109.8
Long-term debt		248.8			260.7			235.7			207.0			256.8
Other long-term liabilities		82.2			75.5			65.0			72.2			51.2
Total equity		465.1			394.9			394.1			375.5			327.4
Other Statistics for Continuing  Operations
Depreciation, depletion and amortization	$	45.3		$	42.1		$	36.3		$	36.7		$	34.1
Capital expenditures		74.5			61.0			47.3			50.7			44.0
Capital expenditures - corporate building		-			-			-			9.7			16.7
Gross profit margin		27.5	%		26.7	%		25.9	%		26.8	%		25.7	%
Operating profit  margin		10.0	%		9.1	%		8.4	%		7.2	%		8.9	%
Pretax profit margin		8.6	%		8.0	%		7.3	%		5.4	%		6.8	%
Effective tax rate		27.6	%		27.6	%		33.4	%		14.6	%		24.0	%
Net profit from continuing operations margin		6.6	%		6.3	%		3.6	%		4.6	%		2.6	%
Return on average equity		15.1	%		14.8	%		7.6	%		9.1	%		7.2	%

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Overview

We are a global company focused on long term profitability growth through the development and application of minerals and technology products and services to various industrial and consumer markets.  The majority of our revenue growth has been achieved by sustaining our products’ technological advantages, developing new products and applying them in innovative ways, bringing additional products and services to markets we already serve, and overall growth in the industries we serve.  We focus our research and development activities in areas where we can either leverage our current customer relationships and mineral reserves or enhance existing or related products and services.

The principal mineral that we utilize to generate revenues is bentonite.  We own or lease bentonite reserves in the U.S., Australia, China and Turkey.  Additionally, through our affiliates and joint ventures, we have access to bentonite reserves in Egypt, India, and Mexico.   We also develop applications for other minerals, including chromite ore from our mine in South Africa.

Bentonite is surface mined when it is commercially feasible to have it shipped to a plant for further processing, including crushing, drying, milling and packaging.  Bentonite deposits have varying physical properties which require us to identify which markets our reserves can serve.  Nicknamed the mineral of a thousand uses, bentonite’s unique characteristics include its ability to bind, swell, adsorb, control rheology, soften fabrics, and have its surface modified through chemical and physical reactions.  Our research and development activities, including our understanding of bentonite properties, mining methods, processing and application to markets are some of the core components of our longevity and future prospects.

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We operate in five segments:  performance materials, construction technologies, energy services, transportation and corporate.  Both our performance materials and construction technologies segments operate manufacturing facilities in North America, Europe, and the Asia-Pacific region.  Our performance materials segment also owns and operates a chrome mine in South Africa.  Our energy services segment principally operates in the Gulf of Mexico and surrounding states and also has a growing presence in South America, Africa and Asia.  Additionally, we have a transportation segment that provides trucking services for our domestic performance materials and construction technologies segments as well as third parties.

Our customers are engaged in various end-markets and geographic regions. Customers in the performance materials segment range from foundries that produce castings for automotive, industrial, and transportation equipment, including heavy-duty trucks and railroad cars, to producers of consumer goods, including cat litter, cosmetics and laundry care.  Customers in our construction technologies segment include construction contractors, engineering contractors and government agencies.  The energy services segment’s customer base is primarily comprised of oil and natural gas service or exploration companies.

A significant portion of our products have been used in the same applications for decades and have experienced minimal technological obsolescence.  A majority of our sales are made pursuant to short-term agreements; therefore, terms of sale, such as pricing and volume, can change within our fiscal year.

A majority of our revenues are generated in the Americas, principally North America.  Consequently, the state of the U.S. economy, and especially the metalcasting and commercial construction industries, impacts our revenues.  Our fastest growing markets are in the Asia-Pacific and certain European regions, which have continued to outpace the U.S. in economic growth.

Sustainable, long-term profit growth is our primary objective.  We employ a number of strategic initiatives to achieve this goal:

● Organic growth:  The central component of our growth strategy is expansion of our product lines and market presence.  We have a history of commitment to research and development activities directed at bringing innovative products to market.  We believe this approach to growth offers the best probability of achieving our long-term goals at the lowest risk.

● Globalization:  As we have done for decades, we continue to expand our manufacturing and marketing organizations into emerging geographic markets.  We see significant opportunities in the Asia-Pacific and European regions for expanding our revenues and earnings over the long-term as a number of markets we serve, such as metalcasting and lining technologies, are expected to grow in these areas.  We expect to take advantage of these growth areas, either through our wholly-owned subsidiaries or investments in affiliates and joint ventures.

● Mineral development: Bentonite is a component in many of the products we supply.  Since it is a natural material, we must continually expand our reserve base to maintain a long-term business.  Our goal is to add new reserves to replace the bentonite mined each year.  Furthermore, we need to assure that new reserves meet the physical property requirements for our diverse product lines and are economical to mine.  Our organization is committed to developing its global reserve base to meet these requirements.

● Acquisitions: We continually seek to acquire complementary businesses, as appropriate, when we believe those businesses are fairly valued and fit into our growth strategy.

There can be no assurance that we will achieve success in implementing any one or more of the strategic initiatives described above.

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A number of risks will challenge us in meeting our long-term objectives.  We describe certain of these risks, such as competition and our reliance on economically sensitive markets, under “Item 1A. Risk Factors” and “Item 7A. Quantitative and Qualitative Disclosures About Market Risk.”  We intend to manage these risks actively, but there can be no assurance of our success to do so.

Critical Accounting Policies and Estimates

Management’s Discussion and Analysis of Financial Condition and Results of Operations describes relevant aspects of our consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the U.S.  The preparation of these financial statements requires us to select accounting policies that are appropriate for our business, and to make certain estimates, judgments and assumptions about matters that are inherently uncertain in applying those policies.  On an ongoing basis, we re-evaluate these estimates, judgments and assumptions for reasonableness because of the critical impact that these factors have on the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the periods presented.  Actual results may differ from these estimates.

Our financial statements are based in part upon critical accounting policies that involve complex and subjective decisions and assessments.  Our senior management has discussed the development, selection and disclosure of these policies with the members of the Audit Committee of our Board of Directors.  We believe our selection of accounting policies has resulted in actual results approximating the estimated amounts in each respective area.  These policies are discussed below and also in Note 1 of the Notes to Consolidated Financial Statements.  The discussion which follows should be read in conjunction with the consolidated financial statements and related notes included elsewhere in this Annual Report on Form 10-K.

Valuation of Accounts Receivable

We provide credit to customers in the ordinary course of business and perform ongoing credit evaluations.  Our customer base is diverse and includes customers located throughout the world.  Payment terms in certain of the foreign countries in which we do business are longer than those that are customary in the U.S., and, as a result, may give rise to additional credit risk related to outstanding accounts receivable from these non-U.S. customers.  Likewise, a change in the financial position, liquidity or prospects of any of our customers could have an impact on our ability to collect amounts due.  While concentrations of credit risk related to trade receivables are somewhat limited by our large customer base, we do extend significant credit to some of our customers.

We make estimates of the amounts of our gross accounts receivable that will not be collectible, and record an allowance for doubtful accounts to reduce the carrying value of accounts receivable to the amount that is expected to be realized.  The allowance for doubtful accounts is established based upon our historical bad debt experience, a review of the overall aging of the accounts, and an analysis of specific customer accounts, particularly those with past-due balances.  The recorded allowance for doubtful accounts is intended to cover specific customer collection issues identified by management at the balance sheet date and to provide for potential losses from other accounts based on our historical experience.  Increases in the allowance for doubtful accounts are recorded as an expense and included in general, selling and administrative expenses in the period identified.  Our estimate of the required allowance for doubtful accounts is a critical accounting estimate because it is susceptible to changes in customer payment patterns, dynamics of the industries in which we operate, our judgments about the future collectibility of customer accounts, and other factors.

Inventory Valuation

Inventories are recorded at the lower of cost or net realizable value.  In addition, we regularly review inventory quantities on hand and evaluate significant items to determine whether they are excess or obsolete.  We record the value of estimated excess or obsolete inventory as a reduction of inventory and as an expense in cost of sales in the period it is identified.  Our estimate of excess and obsolete inventory is a critical accounting estimate because it is susceptible to changes in estimates of the future demand for inventory, customer purchasing behaviors, competition, and other factors.

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Our process to evaluate inventories for excess or obsolete items is comprehensive.  We quantify the amount of inventory on hand that, based on projected demand, is not anticipated to be sold within the next 12 to 24 months or, based on our current product offerings, is excess or obsolete.  This involves a review by sales and production management personnel to determine whether this list of potential excess or obsolete inventory is complete.  Factors which impact this evaluation include, for example, whether there has been a change in the market or packaging for particular products, and whether there are components of inventory that incorporate obsolete formulations or technology.  In certain businesses in which we are engaged, such as our domestic cat litter and personal care business, product and packaging changes can occur rapidly and expose us to excess and obsolete inventories.

Goodwill and Long-lived Assets

Our goodwill and intangible assets have largely arisen from business combinations or acquisitions that we have completed.  We follow the guidance in Accounting Standard Codification (“ASC”) Topic 805 related to business combinations when initially recognizing the fair value of assets and liabilities acquired in a business combination.  Under these guidelines, we are required to recognize the fair value of the intangible assets we acquire in a business combination.  These are typically customer related assets, trademarks and trade names and non-compete agreements.  We are required to make significant estimates as to the nature of these customer relationships including future profitability and longevity of the relationships. We are also required to make significant estimates regarding the probability and impact of competition from former owners or management employees of businesses we acquire.  These estimates are critical as we make them from the viewpoint of a market participant; they involve forecasting future results; and they contain uncertainties regarding the customers served by the acquired business.

For property, plant and equipment and intangible assets with finite lives, we evaluate the recoverability of these assets whenever events or changes in circumstances indicate that the carrying value of the assets may not be recoverable.  For goodwill and indefinite lived intangible assets, we perform our impairment assessment annually or more frequently if impairment indicators arise.  This assessment is made at the reporting unit level for goodwill and at the individual asset level for indefinite lived intangible assets.

For testing the recoverability of our long-lived assets, we primarily use discounted cash flow models to estimate the fair value of our long-lived assets.  Critical assumptions used in conducting these tests include expectations of our business performance and financial results, useful lives of assets, and discount rates as well as comparable market data.

In conducting our goodwill impairment tests we rely on both the qualitative and the quantitative assessment methodologies.  For the qualitative method, we consider various events and circumstances (or factors) that would affect the estimated fair value of our reporting units and the level of impact a particular factor would have on the estimated fair value.  For the quantitative method, we primarily use discounted cash flow models to estimate the fair value of our reporting units.  Critical assumptions used in both these testing methodologies include expectations of our business performance and financial results, and weighted average cost of capital as well as comparable market data and our market capitalization.

In evaluating the recoverability of our indefinite lived intangible assets, we make several critical assumptions as to the applicable market royalty rate and discount rates as well as the future performance of the assets underpinning those intangibles.

Our estimates related to the carrying values of these assets are considered to be critical accounting estimates because they are susceptible to change from period to period based on our judgments about a variety of factors and due to the uncontrollable variability of market factors underlying them.  For example, judgment is required to determine whether events or changes in circumstances indicate that the carrying value of the assets may not be recoverable.  In addition, in performing assessments of the carrying values of these assets, we must make judgments about our future business; economic, regulatory, and political conditions affecting these assets; appropriate risk-related rates for discounting estimated future cash flows; and reasonable estimates of disposal values.

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Based on business conditions and market values that existed at October 1, 2012, we concluded that no impairment loss was required.  However, the market value of our common stock continues to fluctuate and if, among other factors, (1) our equity value declines, (2) the fair value of our reporting units decline, (3) we don’t achieve our expected future results, or (4) the adverse impacts of economic or competitive factors are worse than anticipated, we could conclude in future periods that impairment losses are required in order to reduce the carrying value of our goodwill, other intangible assets, or other long-lived assets.  Depending on the severity of the changes in the key factors underlying the respective impairment tests, such losses could be significant.

Retirement Benefits

We sponsor a qualified defined benefit pension plan for substantially all of our U.S. employees hired before January 1, 2004.  We also sponsor a supplementary pension plan (“SERP”) that provides benefits in excess of qualified plan limitations for certain employees.  In order to measure the expense and obligations associated with these retirement benefits, we estimate various factors used in valuing the associated assets and liabilities, such as discount rates, expected return on plan assets, rate of compensation increases, employee turnover rates, retirement rates, mortality rates and other factors.  Our benefit plan committee determines the key assumptions related to the discount rate, expected investment rate of return, long term rate of compensation increases, and other assumptions based on consultation with our actuaries.  The most important assumptions that affect the computations are the discount rate and the expected long-term rate of return on plan assets.

Our discount rate assumption is intended to reflect the rate at which the retirement benefits could be effectively settled based upon the assumed timing of the benefit payments.  In determining the discount rate for December 31, 2012, we utilized the Aon Hewitt AA Bond Universe yield curve, which is a hypothetical double A yield curve comprised of a series of annualized individual spot discount rates, applied to the projected benefit payments for our plans. The discount rate used to determine our retirement pension benefit obligation at December 31, 2012 was 4.17% for the qualified defined benefit plan and 4.00% for our SERP.  A 50 basis point decrease in this discount rate would have increased the benefit obligation at December 31, 2012 by $6.2 million and would increase our net cost expected in 2013 by 18%, or $637 thousand.  Likewise at December 31, 2012, a 50 basis point increase in the discount rate would have decreased the benefit obligation by $5.6 million and would decrease our net cost expected in 2013 by 17%, or $581 thousand.

The expected long-term rate of return on defined benefit plan assets was based on our current asset allocations and the expected returns based on current capital market assumptions.  Information regarding our asset allocations is included in the Notes to Consolidated Financial Statements in "Item 8. ­Financial Statements and Supplementary Data."  We assumed a weighted-average expected long-term rate of return on pension plan assets of 7.50% to determine our net defined benefit pension plan expense in 2012.  A 50 basis point decrease in the expected return would increase the net cost expected in 2013 by approximately 8.2%, or $195 thousand.  Likewise, a 50 basis point increase in the expected return would decrease the net cost expected in 2013 by approximately 8.2%, or $195 thousand.

Income Taxes

Our effective tax rate is based on the income, statutory tax rates and tax planning opportunities available to us in the various jurisdictions in which we operate.  Significant judgment is required in determining our effective tax rate and in evaluating our tax positions.  We account for our tax positions in accordance with the guidance for accounting for uncertainty in income taxes codified in ASC Topic 740, and thus our effective tax rate includes the impact of changes to our liability for uncertain tax positions.

Our estimates of income tax items, expenses and reserves are considered to be critical accounting estimates because they are susceptible to change from period to period based on rulings by various taxing authorities, changes in tax laws, changes in projected levels of taxable income and availability of future tax planning strategies.  On a quarterly basis, these estimates are more critical as they involve estimates of our taxable income expected for the remainder of the fiscal year by taxing jurisdiction.

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In addition, our effective tax rate reflects the impact of certain undistributed foreign earnings for which no U.S. taxes have been provided because such earnings are planned to be reinvested indefinitely outside the U.S.  Most of the amounts held outside the U.S. could be repatriated to the U.S., but would be subject to U.S. federal income taxes and foreign withholding taxes, less applicable foreign tax credits or deductions.

Valuation allowances are recorded, if necessary, to measure a deferred tax asset at the amount that will more likely than not be realized.  Both positive and negative evidence are considered in forming our judgment as to whether a valuation allowance is appropriate.  Changes in a valuation allowance are recorded in the period when we determine events have occurred that will impact the realizable value of the asset.

A number of years may elapse before a particular matter is audited and finally resolved.  Audits of our U.S. federal income tax returns have been completed for our income tax returns relating to fiscal years of 2009 and prior.  State income tax returns are audited less frequently.  Unfavorable settlement of any particular issue would require use of our cash and could result in the recording of additional tax expense.  Favorable resolution would be recognized as a reduction to our tax provision in the year of resolution.

Accounting for Long Term Contracts

Our construction technologies and energy services segments generate sales and revenues under long term contracts with customers.  Where applicable, these revenues and related costs are accounted for under the percentage of completion revenue recognition method whereby revenues are recognized as completion occurs, which can be generally measured by either the costs incurred in relation to the total expected costs to complete the contract or the amount of product installed in relation to the total amount expected to be installed.  In addition, we recognize losses on contracts in the period in which we first forecast a loss will occur on the overall contract.  This revenue recognition methodology requires that we continually update our estimates of the amount of work remaining to complete a contract.  Thus, our sales and revenues and related costs are subject to fluctuation depending on changes in estimates of the cost or product required  to complete a contract.

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Results of Operations for the Three Years Ended December 31, 2012

The discussion below references the consolidated statement of operations included in “Item 8. Financial Statements and Supplementary Data.”

Consolidated Income Statement Review

The following table compares our operating results for the past three years.

	Year Ended December 31,
Consolidated	2012			2011			2010			2012 vs. 2011			2011 vs. 2010
	(Dollars in Millions)
Continuing Operations
Net sales	$	985.6		$	943.8		$	826.3			4.4	%		14.2	%
Cost of sales		714.5			691.5			612.1
Gross profit		271.1			252.3			214.2			7.5	%		17.8	%
margin %		27.5	%		26.7	%		25.9	%
Selling, general and administrative expenses		173.0			166.2			145.2			4.1	%		14.5	%
Operating profit		98.1			86.1			69.0			13.9	%		24.8	%
margin %		10.0	%		9.1	%		8.4	%
Other income (expense):
Interest expense, net		(10.4	)		(11.0	)		(9.6	)		-5.5	%		14.6	%
Other, net		(3.4	)		0.2			1.3			*			*
		(13.8	)		(10.8	)		(8.3	)
Income before income taxes and income (loss) from affiliates and joint ventures		84.3			75.3			60.7
Income tax expense		23.3			20.8			20.3			12.0	%		2.5	%
Income before income (loss) from affiliates and joint ventures		61.0			54.5			40.4
Income (loss) from affiliates and joint ventures		3.9			5.2			(11.0	)		*			*
Income from continuing operations		64.9			59.7			29.4
Discontinued Operations
Income (loss) on discontinued operations		-			(1.2	)		(0.9	)		*			*
Net income (loss)		64.9			58.5			28.5			10.9	%		105.3	%
Net income (loss) attributable to noncontrolling interests		(0.2	)		-			(0.7	)		*			*
Net income attributable to AMCOL shareholders		65.1			58.5			29.2			11.3	%		100.3	%
* Not meaningful

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The following analysis comments on the significant fluctuations in our results for the past three years by material category.  The comments are organized in relation to our company’s overall results in general followed by a detailed discussion of these general comments as they relate to each segment individually and in detail.

Net sales

 We measure overall sales growth as being derived organically from base businesses, acquisitions or foreign currency exchange rate fluctuations.  Base or organic businesses represent operations owned for more than one year whereas acquisitions are those owned less than one year.  We did not make any significant acquisitions in the past three years.  Foreign exchange isolates the impact of currency changes over the prior-year period.  The following tables detail components of consolidated 2012 and 2011 sales changes over their respective prior years:

2012 vs. 2011	Base Business			Acquisitions			Foreign Exchange			Total
Performance materials		2.0	%		0.0	%		-0.4	%		1.6	%
Construction technologies		-2.0	%		0.0	%		-1.1	%		-3.1	%
Energy services		6.8	%		0.0	%		-0.2	%		6.6	%
Transportation & intersegment sales		-0.7	%		0.0	%		0.0	%		-0.7	%
Total		6.1	%		0.0	%		-1.7	%		4.4	%
% of change		136.3	%		0.0	%		-36.3	%		100.0	%

2011 vs. 2010	Base Business			Acquisitions			Foreign Exchange			Total
Performance materials		6.8	%		0.0	%		0.5	%		7.3	%
Construction technologies		2.4	%		0.1	%		0.7	%		3.2	%
Energy services		4.7	%		0.0	%		0.3	%		5.0	%
Transportation & intersegment sales		-1.3	%		0.0	%		0.0	%		-1.3	%
Total		12.6	%		0.1	%		1.5	%		14.2	%
% of change		88.9	%		0.7	%		10.4	%		100.0	%

Our energy services segment experienced significant revenue growth domestically and internationally in 2012 that drove our overall organic growth.  Overall revenue growth would have been greater except for the negative effect of foreign currency exchange rate fluctuations, mostly affecting entities within our EMEA region.

Revenues continued to grow organically in 2011 following the 2008-2009 depression.  The largest increase was in our performance materials segment, which significantly benefitted from increased sales of its metalcasting product line (47% of our consolidated revenue growth in 2011), especially to those service customers supplying the automotive industry.  Growth in our energy services segment comprised 35% of our overall revenue growth in 2011, notably due to growth in coil tubing services.

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The following table provides a comparison of consolidated sales by geographical region over the last three years:

	2012			2011			2010
Americas		64.0	%		62.5	%		62.6	%
EMEA *		19.4	%		23.3	%		22.5	%
Asia Pacific		16.6	%		14.2	%		14.9	%
Total		100.0	%		100.0	%		100.0	%

* Europe, Middle East and Africa

Inter-regional sales in the table above are eliminated in Americas.

Several factors affect the change in distribution of our revenues across our geographic regions in 2012.  These factors are:  continued domestic growth in our metalcasting sales, strong growth within our energy services’ Malaysian operations, and continued softness in the European operations within our construction technologies segment.  In 2011, our EMEA revenues increased as a percentage of total revenues given the growth in our chromite related products, which are sourced from our South African operations.

Gross profit

Approximately 59% of the increase in gross profit in 2012 results from increased sales, especially in our energy services segment where gross profits increased by 27%.  The remaining increase results from gross margin improvement, largerly in our performance materials segment, and reflective of the continued strong performance in our metalcasting product line.

Approximately 80% of the increase in gross profit in 2011 results from increased sales.  As to the remaining increase, our performance materials segment incurred $5.7 million of unusual costs in 2010 associated with operational issues in our domestic personal care product line.  Excluding these unusual costs, 2010 gross margin would have been 26.6%, or roughly equivalent to the 26.7% gross margin in 2011.

Selling, general, and administrative expenses (SG&A)

Overall, SG&A expenses increased $6.8 million in 2012.  The increase mostly occurred in our energy services segment and was partially offset by decreased expenses in our construction technologies segment.

In 2011, SG&A expenses increased across all segments and is discussed more fully in the segment reviews presented later herein. Amounts for 2010 also include $2.7 million of expenses associated with the retirement of our previous Chief Executive Officer.

Operating profit

In 2012, operating profits increased due to increased gross profits and increased operating leverage, which largely stems from the 140 basis point and 150 basis point improvements in gross profit and operating profit margins, respectively, in our performance materials segment as SG&A expenses remained constant as a percentage of sales within this segment.

In 2011, the increase in operating profit follows the increase in gross profit and was generated from organic growth.  Operating profit in 2010 includes $6.3 million of unusual expenses in our domestic personal care business, as previously discussed, as well as $2.7 million of expenses associated with the retirement of our previous chief executive officer.  Excluding both of these expenses in 2010, operating profit margin in 2011 (9.1%) is not significantly different to 2010’s operating profit margin (9.4%).

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Net interest expense

Net interest expense decreased in 2012 due to a decrease in the average interest rate on our debt from 4.5% in 2011 to 4.1% in 2012.

Net interest expense increased in 2011 mostly due to increased average debt levels throughout the year.  As our business grew throughout the year, we increased our debt levels to fund the corresponding increases in working capital required to fuel that growth.  We had $247.3 million of debt outstanding during 2011 at an average interest rate of 4.5%.

Other, net

In 2012, approximately $2.4 million of the increase in Other, net was to provide for estimated losses on certain non-operating assets within our construction technologies segment.

The remaining increase in 2012 relates to losses on foreign currency transactions and foreign currency derivative instruments.  We are particularly sensitive to currency exchange rate fluctuations between the following currency pairs: a) the Euro to the British pound (GBP) and the Polish zloty (PLN), b) the South African Rand (ZAR) to the USD and Australian dollar (AUD), c) the GBP to the Danish kroner (DKK) and the Swiss franc (SEK), and d) the USD to the Indian rupee (INR), the Thai baht (THB), and the Turkish lira (TRY). We continue to work to reduce the effect of foreign currency exposures in order to record neither a gain nor a loss on our foreign currency transactions.  Where possible, we identify currency fluctuation exposures and attempt to mute their impact through the effective use of derivative instruments.  Our future levels of losses or gains on foreign currency transactions and derivatives will depend on fluctuations in the currency rates we are exposed to as well as the hedging activities we undertake, if any.  The effectiveness of these hedging activities can be seen in the reduced amount of gains in Other, net in 2011 as compared to 2010.

Income taxes

The largest factors giving rise to the changes in our effective income tax rates between years lie in the change in effective state tax rates, change in valuation allowances, and income generated in domestic versus foreign jurisdictions which have lower tax rates.  The increased benefits related to state tax rates and income earned in foreign jurisdictions offset the detriments associated with changes in valuation allowances and other items.  A schedule reconciling the U.S. federal statutory income tax rate to our effective rate is included in Note 7 of the Notes to Consolidated Financial Statements.

Our effective income tax rate was 27.6%, 27.6%, and 33.4% in 2012, 2011, and 2010, respectively.  Our effective tax rate in 2012 is comparable to that in 2011. Our 2011 effective income tax rate is less than 2010’s rate due to the fact that 2010 includes expenses of $3.4 million to reserve for income tax benefits in our foreign operations which may not be realized.

Income (loss) from affiliates and joint ventures

Income from affiliates and joint ventures decreased $1.3 million in 2012 because the 2011 amounts include $1.4 million of gains resulting from the sale of our Russian and Belgian investments.  These investments generated losses in 2010 of $7.2 million and $6.9 million, respectively, that relate to impairments.

Excluding our investments in Russia and Belgium, we recorded income of $3.8 million and $3.1 million from our affiliates and joint ventures in each of 2011 and 2010, respectively.  Excluding the Russian and Belgian joint ventures investments, income from our affiliates and joint ventures increased in 2011 due to improved financial performance of our Japanese joint venture and our Mexican joint venture.  The Japanese venture has benefitted from the economic recovery in Japan in 2010 and increased sales of construction technologies products after the tsunami in March 2011.  Our Mexican joint venture has experienced improved performance in its fabric care business.

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Regarding the 2010 impairments mentioned above, our investment in the Russian joint venture became impaired due to the continued poor financial performance of that entity which was not expected to recover.  Our Belgian joint venture impaired its fixed assets due to its inability to generate profits and our opinion that it will not be able to do so given the fundamentals of its business and the environment in which it operates.  Our investment in each of these ventures were reduced to zero as of December 31, 2010.

Income (loss) on discontinued operations

In 2011, we sold our domestic contracting services business.  The amounts reflected in Income (loss) from discontinued operations relate solely to these domestic operations, and, as of December 31, 2012 and 2011, our Consolidated Balance Sheets included $1.5 million and $5.7 million of receivables owed to us as a result of the sale of these operations.

Net income attributable to AMCOL shareholders

The $6.6 million increase in net income attributable to AMCOL shareholders in 2012 is primarily due to the $12.0 million increase in operating profit offset by $2.5 million of increased tax expenses associated with that income and $2.4 million of receivable write offs relating to the contracting business we sold in 2011.  The increase in net income attributable to AMCOL shareholders in 2011 is due to increased operating profit, mostly in our performance materials and energy services segments, and increased income from our affiliates and joint-ventures.

Earnings per share (diluted)

Our weighted average number of shares of common stock and common stock equivalent shares outstanding  increased 0.8% in 2012 and 1.9% in 2011 due to exercises of stock compensation awards.  The increase reduced our diluted earnings per share by $0.02 and $0.03 in 2012 and 2011, respectively.  The remaining fluctuations in our diluted earnings per share results from the changes in Net income attributable to AMCOL shareholders, as previously discussed.

Segment Reviews

The following discussions highlight the operating results for each of our five segments.  Unless otherwise stated, the fluctuations in operating profit and operating profit margin reflect the changes in gross profit, gross margin, and SG&A expenses.

Performance Materials Segment

	Year Ended December 31,
Performance Materials	2012				2011				2010				2012 vs. 2011			2011 vs. 2010
	(Dollars in Millions)
Net sales	$	491.9	100.0	%	$	476.7	100.0	%	$	416.5	100.0	%		3.2	%		14.5	%
Cost of sales		365.0	74.2	%		360.2	75.6	%		320.4	76.9	%
Gross profit		126.9	25.8	%		116.5	24.4	%		96.1	23.1	%		8.9	%		21.2	%
Selling, general and administrative expenses		50.6	10.3	%		49.4	10.4	%		42.6	10.2	%		2.4	%		16.0	%
Operating profit		76.3	15.5	%		67.1	14.0	%		53.5	12.9	%		13.7	%		25.4	%

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Revenues Originating From - Performance Materials	Americas			EMEA			Asia Pacific			Total
Fiscal year:
2012		61.1	%		17.4	%		21.5	%		100.0	%
2011		59.8	%		19.6	%		20.6	%		100.0	%
2010		61.2	%		18.4	%		20.4	%		100.0	%

	Year Ended December 31,
Performance Materials Product Line Sales		2012		2011		2010	2012 vs. 2011		2011 vs. 2010
		(Dollars in Millions)
Metalcasting	$	265.5	$	247.3	$	196.7	7.4	%	25.7	%
Specialty materials		109.5		116.8		112.7	-6.3	%	3.6	%
Pet products		52.9		56.2		62.0	-5.9	%	-9.4	%
Basic minerals		55.0		47.9		43.5	14.8	%	10.1	%
Other product lines		9.0		8.5		1.6	5.9	%	431.3	%
Total		491.9		476.7		416.5

2012 vs. 2011

The overall increase in net sales in 2012 occurred mostly in our metalcasting products, especially in our domestic and Asia-Pacific markets, where we continue to see strong demand from the automotive and heavy equipment industries.  Metalcasting revenues increased $18.2 million, equally split between increased selling prices and increased volumes.  Within specialty materials, fabric care product sales decreased $9.2 million, mostly in Europe, as some of our product was reformulated out of our largest customer’s end product.  Pet product sales, a domestic product line, decreased mostly due to one large big box retailer’s renewed focus on branded products over the private labeled products we sell them.  Basic minerals are mostly comprised of sales of ferro alloys and domestic drilling fluid additive revenues.  Ferro alloy revenues  continue to grow due to increased demand for non-metalcasting chromite products, and our drilling additive products continue to see increased demand from oil and gas well drilling activities.  Overall, approximately 109% of the increase in basic minerals sales came from increased volumes offset by 9% of decreased sales prices.

Gross profits increased due to the increase in sales discussed above.  The 140 basis point improvement in the segment’s overall gross profit margin is also reflective of the increased pricing and volumes, which led to greater economies of scale.

SG&A expenses increased $1.2 million almost entirely related to increased compensation expenses.  The increase in operating profit reflects the significant increase in gross profit.  Operating profit margins increased, reflective of the increase in gross profit margins.

2011 vs. 2010

Sales in our performance materials segment in 2011 increased $60.2 million, of which $54.9 million (91%) arose in our metalcasting product line due to increased volumes (87% of the increase) and increased selling prices (13% of the increase).  We continued to raise selling prices around the world, but most significantly in the U.S. and Asia Pacific due to the high demand for automotive and heavy equipment metalcastings.

Our gross profits increased due to the increase in sales, and gross margins increased 130 basis points.  However, the 2010 gross margin was depressed due to the inclusion of $5.7 million of costs included within cost of sales that we believe were unusual and resulted from operational issues in our domestic personal care business.  Excluding this $5.7 million from 2010 results, the gross margin would have been 24.4% in both 2010 and 2011.  The relatively stable gross margin of 24.4% reflects selling price increases, as previously noted, substantially offset by increases in production costs, such as fuel, transportation rates, and other raw materials.

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SG&A expenses increased in 2011 to support the growth in business.  Approximately $2.8 million of the increase resulted from headcount, compensation and benefits increases, and $3.1 million of the amount resulted from increases in support functions and investments.

Construction Technologies Segment

	Year Ended December 31,
Construction Technologies	2012				2011				2010				2012 vs. 2011			2011 vs. 2010
	(Dollars in Millions)
Net sales	$	223.1	100.0	%	$	251.9	100.0	%	$	225.5	100.0	%		-11.4	%		11.7	%
Cost of sales		154.6	69.3	%		178.0	70.7	%		156.2	69.3	%
Gross profit		68.5	30.7	%		73.9	29.3	%		69.3	30.7	%		-7.3	%		6.6	%
Selling, general and administrative expenses		52.9	23.7	%		56.6	22.5	%		48.9	21.7	%		-6.5	%		15.7	%
Operating profit		15.6	7.0	%		17.3	6.8	%		20.4	9.0	%		-9.8	%		-15.2	%

Revenues Originating From - Construction Technologies	Americas			EMEA			Asia Pacific			Total
Fiscal year:
2012		48.7	%		41.1	%		10.2	%		100.0	%
2011		44.0	%		48.0	%		8.0	%		100.0	%
2010		44.9	%		45.9	%		9.2	%		100.0	%

	Year Ended December 31,
Construction Technologies Product Line Sales	2012	2011		2010	2012 vs. 2011		2011 vs. 2010
	(Dollars in Millions)
Lining technologies	91.8	105.6	$	111.1	-13.1	%	-5.0	%
Building materials	75.9	78.3		58.7	-3.1	%	33.4	%
Drilling products	36.6	32.0		24.7	14.4	%	29.6	%
Contracting services	18.8	36.0		31.0	-47.8	%	16.1	%
Total	223.1	251.9		225.5

2012 vs. 2011

Overall, approximately 35% of the decrease in sales resulted from unfavorable foreign currency exchange rate fluctuations, most of which occurred in the EMEA region due to changes in exchange rates of the USD versus the Euro and Polish zloty.  Our contracting services revenues decreased $17.2 million, reflective of our decision to reduce our involvement in these services; we perform contracting services largely in our EMEA region as we sold our domestic contracting services business in 2011.  Regarding the $13.8 million decrease in our lining technologies sales, $3.8 million of the decrease arose from unfavorable foreign currency exchange rate fluctuations and $6.4 million occurred in our domestic subsidiaries ($7.1 million from decreased volumes and $0.7 from increased prices).

Gross profit decreased due to the decrease in revenues.  Gross profit margins increased, reflective of the increased concentration of sales in higher margin products, namely building materials and drilling products.  These two product lines comprise 50% of sales in 2012 as opposed to 44% in 2011.

SG&A expenses decreased $3.7 million, of which approximately $1.8 million relates to fluctuations in the Euro and Polish zloty exchange rates.  Overall, 35% of the reduction stems from reduced compensation expenses; 25% from reduced facility and operating expenses; 24% from expenses which normally fluctuate with sales levels, such as third party commissions; and the remainder from the favorable settlement of a supplier dispute.

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Operating profit decreased as a result of decreased gross profits.  Operating profit margins did not increase as much as gross profit margins as SG&A expenses were not reduced in proportion to the decrease in gross profit.

2011 vs. 2010

Approximately 22% of the growth in revenues was derived from favorable foreign currency exchange rate movements, mostly between the USD and the PLN and GBP, with the remainder coming from organic growth.

Substantially all of the increase in our building materials product line revenue is due to increased volumes resulting from greater traction of sales within our distribution network as well as increased sales of polymer based products and associated ancillary products.  Our drilling product line also experienced strong revenue growth due to increased sales of value added, polymer based products and expansion into new geographic markets in Europe.  Contracting services revenue represents revenues earned overseas as we sold our domestic contracting services business in 2011; in the near future, we expect contracting sales to decrease as we reduce our participation in this market, an effort which includes closing several European offices including our Irish branch, which we closed in 2012.

Gross profits increased due to the increase in sales.  Gross profit margins, however, decreased 140 basis points due to increased production and raw material costs in addition to decreased profitability of jobs within our contracting services product line.  In the US, we experienced increased overhead costs as volumes decreased, thereby spreading the overhead costs amongst a smaller volume of products produced.  In Europe, resin costs increased to levels not seen in recent years and production costs increased as a result of the need to reduce the moisture content of minerals used in production.  In addition, the profitability of contracts in our contracting services product line deteriorated due to increased costs to complete our performance under these contracts.

SG&A expenses increased $7.7 million, most of which occurred in the US and Europe.  Approximately 13% of the total increase relates to fluctuations in foreign currency exchange rates between the USD and other European currencies.  In Europe, we recorded $2.3 million of bad debt expenses, approximately $1.2 million of which was for a single contracting services customer in our Irish branch.  We also had $0.7 million of increased legal expenses.  In the US, employee compensation increased $1.6 million due to improved performance of our building materials and drilling product lines.  We also increased expenses by $0.9 million to expand our product lines, including establishing a presence in India.

Energy Services Segment

	Year Ended December 31,
Energy Services	2012				2011				2010				2012 vs. 2011			2011 vs. 2010
	(Dollars in Millions)
Net sales	$	257.3	100.0	%	$	194.7	100.0	%	$	153.6	100.0	%		32.2	%		26.8	%
Cost of sales		186.2	72.4	%		138.7	71.2	%		110.7	72.1	%
Gross profit		71.1	27.6	%		56.0	28.8	%		42.9	27.9	%		27.0	%		30.5	%
Selling, general and administrative expenses		42.4	16.5	%		34.7	17.8	%		29.2	19.0	%		22.2	%		18.8	%
Operating profit		28.7	11.1	%		21.3	11.0	%		13.7	8.9	%		34.7	%		55.5	%

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Revenues Orginating From - Energy Services	Americas			EMEA			Asia Pacific			Total
Fiscal year:
2012		79.5	%		6.3	%		14.2	%		100.0	%
2011		87.2	%		4.4	%		8.5	%		100.0	%
2010		84.1	%		4.4	%		11.5	%		100.0	%

Overall trends

Our energy services segment provides various services which differ in their proprietary technology, demand for the services, and the location where services are performed.  Our most value added services center around our proprietary water treatment technologies.  The Deepwater Horizon oil spill (unrelated to our Company) in April 2010 caused a decrease in oil well drilling activity in the Gulf of Mexico, which reduced demand for some of our services.  In addition, many oilfield service providers relocated their assets to onshore activities, increasing the supply for services and decreasing the selling price for those services.

However, recent technological innovations in horizontal drilling (a service we do not provide) have allowed oil and gas producers to increase the productivity of oil and gas wells in shale regions.  Our coil tubing services provide oil and gas producers the ability to increase production of their already horizontally drilled wells through a process called hydraulic fracturing or “fracking”, whereby they create holes / fractures in the shale bed to increase the flow of oil and gas reserves to the well head.  Thus, we have experienced significant growth in our coil tubing services, which provide service technologies to the well operators to aid in the fracking process.  Currently, we are focused on providing coil tubing services to oil well as opposed to gas well operators.

Last, we have typically entered foreign markets by securing contracts and forming relationships with large exploration and production companies in a particular region, especially in Brazil and Australia.  Our Malaysian subsidiary is also increasing its provision of design services whereby it will engineer equipment solutions for sale to third party oil and gas companies.  The decrease in revenues within the Asia Pacific region in 2011 reflects the $5.5 million of revenues earned in our Australia facility from two large customer contracts that ended in 2010.  The subsequent increase in 2012 reflects the increase in revenues within our Malaysian operations.

2012 vs. 2011

Although revenues increased 32%, the increase occurred roughly evenly between our domestic (48%) and foreign (52%) operations.  Domestically, our coil tubing and well testing services comprise 74% of the increase and arose from increased service capacity as recently acquired equipment went into service.  Our Malaysian operations comprised more than half of our growth internationally due to the increase in overall activity there as well as an increase in our design services.  In addition, our Nigerian and Brazilian operations are strengthening their relationships with large customers in those areas.

Gross profits increased, reflective of the increase in revenues.  Gross profit margins, however, decreased as increased competition domestically resulted in decreased profitability of the services provided.  The increase in gross profit margins from our international operations was not large enough to combat the domestic decrease.

SG&A expenses increased for several reasons.  Approximately $1.7 million of it related to increased bad debt expenses, $1.0 million of which related to one large coil tubing customer. Approximately 37% of the increase relates to increased employee compensation and related costs, including travel related expenses.

Operating profit increased, reflective of the increase in gross profit and operating profit margins remained relatively stable.

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2011 vs. 2010

Approximately 60% of the increase in revenues occurred in our coil tubing services due to the growth in fracking jobs in the US shale regions, primarily in Texas and Louisiana where our services and equipment are based.  The remaining growth occurred primarily in our well testing services and pipeline services.  Well testing is benefitting from increased demand in the shale regions due to the growth in production there and an increase in offshore work as compared to the significantly depressed level of activity in the Gulf of Mexico in 2010 after the Horizon spill.  Pipeline services are benefitting from increased demand due to increased prices for oil.

Gross profits increased with the increase in revenues and gross margins increased slightly, reflective of the increased profitability of our international operations.

Approximately half of the increase in SG&A expenses is due to increased employee compensation, mostly variable components such as commissions and bonuses, due to the improved financial performance of the segment.  The remaining increase is comprised of various factors (such as increased sales and use tax expenses, information technology equipment expenses, and increased selling expenses related to gaining new business from customers) that are each individually insignificant.

Transportation Segment

	Year Ended December 31,
Transportation	2012				2011				2010				2012 vs. 2011			2011 vs. 2010
	(Dollars in Millions)
Net sales	$	44.0	100.0	%	$	54.1	100.0	%	$	52.2	100.0	%		-18.7	%		3.6	%
Cost of sales		39.4	89.5	%		48.0	88.7	%		46.4	88.9	%
Gross profit		4.6	10.5	%		6.1	11.3	%		5.8	11.1	%		-24.6	%		5.2	%
Selling, general and administrative expenses		3.8	8.6	%		3.9	7.2	%		3.4	6.5	%		-2.6	%		14.7	%
Operating profit		0.8	1.9	%		2.2	4.1	%		2.4	4.6	%		-63.6	%		-8.3	%

2012 vs. 2011

Increased competition negatively affected revenues in 2012.  In addition to $1.7 million less of fuel surcharges, our brokerage shipments experienced a $3.1million decrease due to decreased prices and our hauling operations experienced a $5.2 million decrease due to a decrease in the number of shipments.  The number of loads shipped reflects a change in supply as opposed to a change in demand as competition for drivers has increased with the growth in jobs, mostly in the oil and gas industry due to the growth in fracking work in the North Dakota shale and surrounding region.  Gross and operating profits decreased, reflective of the decrease in sales.

2011 vs. 2010

In 2011, revenues increased due to $3.1 million of increased fuel surcharges, which overshadowed the decrease in overall number of loads shipped.  The number of loads shipped reflects a change in supply as opposed to a change in demand as competition for drivers has increased with the growth in jobs, mostly in the oil and gas industry due to the growth in fracking work in the North Dakota shale and surrounding region.  Gross profits increased slightly due to sales but operating profits decreased due to the increase in SG&A expenses.

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Corporate Segment

	Year Ended December 31,
Corporate	2012			2011			2010			2012 vs. 2011			2011 vs. 2010
	(Dollars in Millions)
Intersegment sales	$	(30.7	)	$	(33.6	)	$	(21.5	)
Intersegment cost of sales		(30.7	)		(33.4	)		(21.6	)
Gross profit		-			(0.2	)		0.1
Corporate selling, general and administrative expenses		23.3			21.6			21.1			7.9	%		2.4	%
Operating loss		(23.3	)		(21.8	)		(21.0	)

Intersegment sales occur most notably for sales a) from our transportation segment to our performance materials and construction technologies segments and b) from our performance materials segment to our construction technologies and energy services segments.  Intersegment sales and costs reported above reflect the elimination of these transactions and are related to changes in sales in each of these businesses.  As evidenced by the small amount of gross profit eliminated above, these intersegment sales are not material to the individual segments or their operating profit, our measure of segment performance.

In general, our corporate SG&A costs include costs for our corporate executive team, public company stewardship expenses, and certain centralized administration costs, especially as they relate to human resource, information technology, corporate research and development, and finance functions.

2012 vs. 2011

SG&A expenses increased $1.7 million in 2012 and include a $0.7 million impairment charge for some abandoned software.  Our information technology needs in other areas have also grown, increasing our expenses in 2012 by approximately $0.9 million.

2011 vs. 2010

Excluding the $2.7 million of expenses incurred in 2010 for the retirement of our former CEO, SG&A expenses increased $3.2 million.  The increase relates to expenses incurred to address issues at our South African operations, increased expenses associated with overseeing strategic initiatives in our foreign operations, and increased infrastructure expenses to support our overall operations, such as new human resource management initiatives.

Consolidated Balance Sheet Review

In this Consolidated Balance Sheet Review section, we discuss the fluctuations in and balances of certain asset, liability and equity components of our Consolidated Balance Sheet as of December 31, 2012 as compared to the amounts as of December 31, 2011.

Our total assets increased by $61.5 million in 2012 to $910.6 million.  We increased our investment in non-cash working capital by $10.6 million to support the growth in business.  Our net property, plant and equipment increased by $28.4 million, mostly in our energy services and performance materials segments, as a result of expenditures we made to grow and maintain those businesses.  Profits from our operations and improved performance of working capital allowed us to not only fund these investments but also reduce our debt balance in 2012.

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Our available-for-sale securities reflect the value of our equity ownership in Ashapura Minechem Limited (Ashapura), a company listed on the Bombay stock exchange, and increased $10.8 million in value as a result of the increase in value of that stock as quoted on the exchange.

Our additional paid in capital increased $10.8 million primarily due to fulfillment of our obligations under our employee stock compensation plans.

Our accumulated other comprehensive income increased $15.5 million, of which $5.4 million relates to the revaluation of the net assets of our foreign subsidiaries into our reporting currency, USD, during consolidation.  The exchange rates between the USD and the functional currencies of several of our entities, including the KRW, PLN, and TRY, have fluctuated significantly, causing the majority of the increase.  Unrealized gains on our available-for-sale securities, net of tax, accounted for $9.6 million of the increase in accumulated other comprehensive income.

Liquidity and Capital Resources

Cash flows from operations, an ability to issue debt instruments, an ability to lease equipment, and borrowings from our revolving credit facility have historically been our sources of funds to provide working capital, make capital expenditures, acquire businesses, repurchase common stock, and pay dividends to shareholders.  We believe cash flows from operations and borrowings from the unused portion of our committed credit facility will be adequate to support our business needs for the foreseeable future.

We may need additional debt or equity facilities in order to pursue acquisitions, when and if these opportunities become available, and we may or may not be able to obtain such facilities on terms substantially similar to our current facilities as discussed in Item 1A – Risk Factors of this Form 10-K.  Terms of any new facilities, especially interest rates or covenants, may be significantly different to those we currently have.

As of December 31, 2012, we had net outstanding debt (net of cash and cash equivalents) of $208.8 million versus $236.6 million at the end of the prior year.  Total long-term debt represented 35%, 40%, and 37% of total capitalization at December 31, 2012, 2011 and 2010, respectively.  As of December 31, 2012, and partly due to the use of interest rate swap derivative instruments, 65% of our debt contains fixed interest rates which average 5.12%; the remainder of our debt contains interest rates which vary mostly in response to changes in LIBOR.

Cash flows from operating activities have varied over the last three years due to fluctuations in net income and working capital levels.  Non-cash working capital was approximately $275.0 million, $264.4 million, and $215.8 million as of December 31, 2012, 2011, and 2010, respectively.  Our current ratio (current assets divided by current liabilities) was 3.8-to-1 and 3.4-to-1 as of the end of 2012 and 2011, respectively.  Undistributed losses (earnings) from affiliates and joint ventures vary with the profits from those investments and distributions received from them.  The large 2010 amount of undistributed losses reflects the impairment charges we recorded in that year for our Russian and Belgian investments.

Cash flows from investing activities fluctuate most with our levels of capital expenditures, which were $74.5 million, $61.0 million, and $47.3 million in 2012, 2011, and 2010, respectively.  Capital expenditures included $7.9 million, $8.2 million and $14.9 million in 2012, 2011, and 2010, respectively, of expenditures associated with establishing our South African chromite operations.  Excluding the expenditures relating to our South Africa operations, the majority of our remaining capital expenditure in all three years occurred in our energy services and performance materials segments to maintain and grow those businesses.

Cash provided by financing activities usually fluctuates with changes in our net debt levels.  In 2012, we generated significant cash flow from operations which we used to pay down external debt (net of borrowings), pay dividends, and fund our capital expenditures.  In 2011 and 2010, we incurred more debt (net of repayments) to fund our capital expenditures and other financing activities.  We declared dividends of $0.76, $0.72, and $0.72 per share in 2012, 2011 and 2010, respectively.  The purchase of non-controlling interest in 2010 relates to the purchase of the remaining 47% minority interest in our South Africa subsidiary from its previous owner.

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Contractual Obligations and Off-balance Sheet Arrangements

The following schedule sets forth details of our long-term contractual obligations at December 31, 2012:

	Payments due by Period
Table of Contractual Obligations			Less
(in millions)	Total		than 1		2-3		4-5		After 5
			Year		Years		Years		Years
Bank debt and capital lease obligations	$	249.8		1.0		0.6		198.2		50.0
Operating lease obligations		111.0		20.0		28.9		15.6		46.5
Interest rate swaps		8.4		-		2.4		6.0		-
Unconditional purchase obligation		0.4		0.4		-		-		-
Pension plan funding obligation		1.2		1.2
Capital expenditures		8.3		7.0		1.3		-		-
Other liabilities		5.1		1.5		3.2		0.4		-
Total contractual cash obligations		384.2		31.1		36.4		220.2		96.5

Amounts included within our financial statements

At December 31, 2012, long-term debt on our Consolidated Balance Sheet includes bank debt of approximately $114.6 million due under our revolving credit agreement, which provides a borrowing commitment from various lenders of $300 million and matures in January 2017.   Long-term debt also includes $125 million of debt for our senior notes, of which $75 million are payable at maturity on April 2, 2017 and $50 million are payable at maturity on April 29, 2020.  Payments relating to these debt instruments are included in the Bank debt and capital lease obligations in the Table of Contractual Obligations.  Further information about these debt instruments is included in our Notes to Consolidated Financial Statements.

We have recorded a liability of $8.4 million for interest rate swap derivatives which effectively hedge the variable interest rate of our senior notes and a portion of our debt under our revolving credit agreement.  The amounts included in the table above will most likely differ from the amount at maturity due to future changes in the fair value of the interest rate swap, which is largely dependent upon changes in interest rates and market expectations.  Further information about these interest rate swap derivatives is included in our Notes to Consolidated Financial Statements.

We have committed to contribute $1.2 million of cash to our defined benefit pension plan in 2013.

We have recorded liabilities to satisfy the land reclamation obligations discussed in our Notes to Consolidated Financial Statements.  These amounts are excluded from our table of contractual obligations as we cannot estimate the timing of these payments since they are not contractually due until the expiration of individual mining permits, which are frequently renewed.

Amounts excluded from our financial statements

Operating leases relate to non-cancelable obligations for leased corporate facilities, transportation equipment, machinery and equipment, computer and office equipment, automobiles, and office and plant facilities.  Included in the table of contractual obligations are amounts for rent due under our operating lease commitment for our corporate facility, which requires lease payments in 2013 of $2.7 million with 2% annual increases thereafter through December 2028, the end of the lease term.  Additional information regarding operating leases is disclosed in our Notes to the Consolidated Financial Statements.

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We occasionally enter into unconditional purchase obligations that contemplate future, irrevocable payments, typically for inventory items, under enforceable contracts which cannot be cancelled without penalty.  We also have commitments with vendors for the purchase of property, plant and equipment under noncancelable purchase orders included in capital expenditures.  Both commitments are presented in the table of contractual obligations but are excluded from our financial statements.

At December 31, 2012, we had outstanding standby letters of credit of $4.2 million and outstanding performance bonds of $41.4 million, neither of which are included in our table of contractual obligations.  These letters of credit and bonds typically serve to guarantee performance of our obligations relating to land reclamation, product supply, and worker’s compensation claims.  We have recognized the estimated costs of our obligations related to land reclamation and workers’ compensation claims in our consolidated balance sheets as of December 31, 2012 and 2011.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

We are exposed to market risk from fluctuations in foreign currency exchange rates, interest rates, credit risk, and market risks on certain publicly traded securities.  We use a variety of practices to manage these market risks, including derivative financial instruments when appropriate.  Our treasury and risk management policies prohibit us from using derivative instruments for trading or speculative purposes.  We also do not use leveraged derivative instruments or derivatives with complex features.

Exchange Rate Sensitivity

As we operate in over 25 countries with many international subsidiaries, we are exposed to currency fluctuations related to manufacturing and selling our products and services.  This foreign currency risk is diversified and involves assets, liabilities and cash flows denominated in currencies other than the USD.  Our major foreign currency exposures involve our subsidiaries in Europe, Southeast Asia, and South Africa, although all foreign subsidiaries are subject to foreign currency exchange rate risk versus the USD.  Exchange rates between these currencies and the USD have fluctuated significantly in recent years and may continue to do so in the future.

We manage our foreign currency exchange risk in part through operational means, including managing same currency revenues versus same currency costs as well as same currency assets versus same currency liabilities.  We also have subsidiaries with the same currency exposures which may offset each other, providing a natural hedge against one another’s currency risk.  From time to time, we also use derivative instruments to reduce these foreign currency exchange rate risks.  At December 31, 2012, we did not have any foreign currency derivative contracts outstanding.

Assets and liabilities of our international subsidiaries are translated to their parent company’s reporting currency at current exchange rates during consolidation; gains and losses stemming from these translations are included as a component of Other Comprehensive Income and reported within Accumulated Comprehensive Income within our consolidated balance sheet.  Income and expenses of our international subsidiaries are translated at average exchange rates for the period and, when included within retained earnings in the balance sheet at current exchange rates, the differences to those average exchange rates is included within Other Comprehensive Income and reported within Accumulated Comprehensive Income.  When our subsidiaries transact business in currencies other than their functional currency, those transactions are revalued in their functional currency and differences resulting from such revaluations are included within Other income, net within our Consolidated Statement of Operations.

We can calculate the effect that changes in exchange rates would have on our total assets and net income.  This calculation cannot be extrapolated to actual results that might occur because changes in the relationship of exchange rates may also impact other assumptions and calculations, such as the income tax expense, which may counteract the sensitivities.  Notwithstanding and holding all other variables constant, a 10% increase in the year-end exchange rates and a 10% increase in our annual average exchange rates would result in a 5% and 1% increase in our total assets and net income to AMCOL shareholders, respectively.  These changes are hypothetical scenarios used to calibrate potential risk and do not represent our view of future market changes.

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Interest Rate Sensitivity

The following table provides information about our financial instruments that are sensitive to changes in interest rates.  The table presents principal cash flows and related weighted average interest rates by expected maturity dates for debt obligations.  The table below shows each instrument’s cash flow amounts in millions U.S. dollars with a notation as to the actual currency the cash flow is denominated in.

	Expected Maturity Date
	2013			2014			2015			2016		2017			Thereafter			Total
(US$ equivalent in thousands)
Short-term debt:
Fixed rate (USD)	$	0.7		$	-		$	-		$	-	$	-		$	-		$	0.7
Interest rate		3.87	%		-			-			-		-			-			3.87	%
Fixed rate (PLN)		0.2			-			-			-		-			-			0.2
Interest rate		3.60	%		-			-			-		-			-			3.60	%
Fixed rate (Euro)		0.1			-			-			-		-			-			0.1
Interest rate		3.95	%		-			-			-		-			-			3.95	%
Long-term debt:
Fixed rate - Senior notes (USD)		-			-			-			-		75.0			50.0			125.0
Average interest rate		-			-			-			-		5.71	%		5.46	%		5.61	%
Variable rate - Revolver (USD)		-			-			-			-		79.2			-			79.2
Average interest rate		-			-			-			-		1.46	%		-			1.46	%
Fixed rate - Revolver (USD)		-			-			-			-		33.0			-			33.0
Average interest rate		-			-			-			-		3.30	%		-			3.30	%
Variable rate - Other (USD)		-			-			-			-		6.5			-			6.5
Average interest rate		-			-			-			-		2.00	%		-			2.00	%
Fixed rate - Other (USD)		-			0.3			-			-		-			-			0.3
Interest rate		-			3.56	%		-			-		-			-			3.56	%
Fixed rate (THB)		-			-			-			-		2.1			-			2.1
Interest rate		-			-			-			-		5.43	%		-			5.43	%
Variable rate (AUD)		-			-			-			-		0.8			-			0.8
Average interest rate		-			-			-			-		4.40	%		-			4.40	%
Variable rate (Euro)		-			-			-			-		1.6			-			1.6
Average interest rate		-			-			-			-		1.30	%		-			1.30	%
Fixed rate (Euro)		-			0.1			-			-		-			-			0.1
Average interest rate		-			3.95	%		-			-		-			-			3.95	%
Fixed rate (PLN)		-			0.1			0.1			-		-			-			0.2
Interest rate		-			3.60	%		3.60	%		-		-			-			3.60	%
Total		1.0			0.5			0.1			-		198.2			50.0			249.8

We periodically use interest rate swaps to manage interest rate risk on debt securities.  These instruments allow us to convert variable rate debt into fixed rate or fixed rate debt into variable rate. Interest rate differentials are paid or received on these arrangements over the life of the agreements. The interest rates above for our Fixed rate – Senior notes and Fixed rate – Revolver include the effect of interest rate swaps as outlined in our Notes to Consolidated Financial Statements.

Credit Risk

We are exposed to credit risk on certain assets, primarily accounts receivable.  We provide credit to customers in the ordinary course of business and perform ongoing credit evaluations.  Concentrations of credit risk with respect to trade receivables are limited due to the large number of customers comprising our customer base.  We currently believe our allowance for doubtful accounts is sufficient to cover customer credit risks.  Our accounts receivable financial instruments are carried at amounts that approximate fair value.

43

Securities Market Risk

We own shares of Ashapura Minechem Limited (“Ashapura”), a public company traded on the Bombay Stock Exchange Limited.  We record the fair value of this investment on our Consolidated Balance Sheet using the closing price of Ashapura’s shares on the exchange as of the last day of the reporting period.  The value of this investment, therefore, is subject to market forces underlying the closing price per share.  We record the investment as an available-for-sale security and recognize changes in its fair value in the Consolidated Statement of Comprehensive Income.

Euro & Sovereign Debt Risk

Certain countries that have adopted the Euro as their currency have experienced recent financial difficulty and are in the process of stabilizing their finances through various measures, which may include such drastic measures as defaulting on their debt or adopting a different currency as their national currency.  While we do not believe we have significant financial risk resulting from any of these situations, we cannot predict the disruption that would occur to the European markets in which we compete if such drastic measures were taken.

We do not have any material credit risk with sovereign governments currently facing this situation as we do not sell our products to them.  We do, however, sell to customers in these countries, but we believe our risk associated with these customers is not material.  In addition, one bank that loans us money pursuant to our revolving credit facility is partially owned by a foreign government, but we believe we would be able to secure other sources of funding should this bank be unable to make loans to us under the credit facility.

Item 8. Financial Statements and Supplementary Data

See the Index to Financial Statements and Exhibits and Financial Statement Schedule in Part IV of this Form 10-K.  Such financial statements and schedule are incorporated herein by reference.

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

Not applicable.

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures, as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), as of the end of the period covered by this report.  Based on that evaluation, the Chief Executive Officer and Chief Financial Officer have concluded that, as of the end of such period, our disclosure controls and procedures were effective.

Management’s Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rule 13a-15(f) of the Exchange Act.  Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.  Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs.  The design of any system of controls is also based, in part, upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions.  Over time, control may become inadequate because of changes in conditions, or the degree of compliance with the policies or procedures may deteriorate.  Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

44

Under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting based on criteria established in the framework in Internal Control – Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission.  Based on this evaluation, we conclude that our internal control over financial reporting was effective as of December 31, 2012.

Our independent registered public accounting firm has audited our internal control over financial reporting as of the end of the period covered by this report as stated in their report, which appears in Part IV of this Form 10-K.

Changes in Internal Control over Financial Reporting

As described in our Form 10-K/A for the year ended December 31, 2011, we identified a material weakness in our internal control over financial reporting relating to inadequate financial oversight of the European operations within our Environmental segment, especially as it relate to the contracting services product line in which we began reducing our participation in 2011.  Specifically, our internal control over financial reporting did not provide sufficient financial review of these operations by our European leaders and gave certain tasks to employees unqualified to perform them.

Even before identification of the aforementioned material weakness in internal control over financial reporting and as part of our normal course of business, we had begun, during the fiscal year ending December 31, 2012, making improvements in our internal control over financial reporting.  These 2012 improvements included:

● Created a new finance position – We created a new position titled Finance Director - EMEA.  This position reports to our Chief Financial Officer and consolidates all financial reporting responsibility for EMEA operations with one person whereas previously it resided with two people who reported to our European management.  A new individual was hired in 2012 to fulfill the responsibilities of this role, including exercising oversight and review of all our European operations.

● Changed the reporting relationship of our accounting staff - In conjunction with the hiring of the new Finance Director - EMEA, we changed the reporting relationships of our finance and accounting staff such that they now report up through our Chief Financial Officer whereas they had previously reported up through their local country general managers.

● Augmented our accounting staff - In addition to the Finance Director - EMEA position, we replaced and in some cases hired additional staff in our foreign operations, including Europe.

● Increased oversight from our domestic accounting staff – Our domestic accounting staff made additional visits to our foreign operations, including those in Europe, to review their local accounting operations and the propriety of accounting for local transactions.  In addition, our domestic accounting staff instituted monthly telephonic reviews with our finance leaders worldwide to discuss the monthly financial results and other accounting matters relating to their operations.  They also instituted quarterly analytical reviews of our foreign entities’ financial statements to vet those results before they are reviewed by our segment finance staff.

● Formalized monthly financial reviews – We formalized and expanded monthly financial statement reviews between our finance and business management team members within all our operations wherein the discussions of financial results, initiatives, and action items are now documented in a monthly memo.

These improvements were targeted at strengthening our internal control over financial reporting and later at helping to remediate the material weakness in internal control over financial reporting as described in our Form 10-K/A for the year ended December 31, 2011.  In order to conclude on the effectiveness of these remediation activities, we were required to test the effectiveness of the changes in our internal control over financial reporting to prove their operating effectiveness.  We were able to conclude that the material weakness was remediated as of December 31, 2012 after our testing efforts were completed.

45

Item 9B. Other Information

Not applicable.

PART III

Item 10. Directors, Executive Officers and Corporate Governance of the Registrant

Information regarding our directors is included in our definitive proxy statement, which will be filed with the Securities and Exchange Commission not later than 120 days after the end of the fiscal year covered by this Form 10-K, and is incorporated herein by reference.

Information regarding our executive officers is included under a separate caption in Part I hereof in accordance with General Instruction G(3) to Form 10-K and Instruction 3 to Item 401(b) of Regulation S-K.

We have adopted a Code of Business Conduct and Ethics (the “Code”) that applies to our principal executive officer, principal financial officer, principal accounting officer or controller and persons performing similar functions, as well as other employees.  The Code, our Corporate Governance Guidelines and the charters of our Audit Committee, Compensation Committee and Nominating and Governance Committee are publicly available on our website at www.amcol.com and are available in print, free of charge, to any shareholder upon request addressed to our Corporate Secretary at AMCOL International Corporation, 2870 Forbs Avenue, Hoffman Estates, Illinois 60192.  If we make any substantive amendments to the Code or grant any waiver, including any implicit waiver, from a provision of the Code to our principal executive officer, principal financial officer, principal accounting officer or controller or persons performing similar functions, we will disclose the nature of such amendment or waiver on our website or in a report on Form 8-K in accordance with applicable rules and regulations.

Item 11. Executive Compensation

Information regarding the above is included in our definitive proxy statement, which will be filed with the Securities and Exchange Commission not later than 120 days after the end of the fiscal year covered by this Form 10-K, and is incorporated herein by reference.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Information regarding security ownership of certain beneficial owners and management is included in our definitive proxy statement, which will be filed with the Securities and Exchange Commission not later than 120 days after the end of the fiscal year covered by this Form 10-K, and is incorporated herein by reference.

Item 13. Certain Relationships and Related Transactions, and Director Independence

Information regarding relationships and related transactions, and director independence is included in our definitive proxy statement, which will be filed with the Securities and Exchange Commission not later than 120 days after the end of the fiscal year covered by this Form 10-K, and is incorporated herein by reference.

46

Item 14. Principal Accountant Fees and Services

Information regarding principal accountant fees and services is included in our definitive proxy statement, which will be filed with the Securities and Exchange Commission not later than 120 days after the end of the fiscal year covered by this Form 10-K, and is incorporated herein by reference.

47

PART IV

Item 15. Exhibits and Financial Statement Schedule

(a)	1.  See Index to Financial Statements and Financial Statement Schedule below.
	2.  See Index to Financial Statements and Financial Statement Schedule below.
	Such Financial Statements and Schedule are incorporated herein by reference.
	3.  See Index to Exhibits immediately following the signature page.
(b)	See Index to Exhibits immediately following the signature page.
(c)	See Index to Financial Statements and Financial Statement Schedule below.

Item15(a) Index to Financial Statements and Financial Statement Schedule

		Page
(1)	Financial Statements:
	Reports of Independent Registered Public Accounting Firm	49
	Consolidated Balance Sheets, December 31, 2012 and 2011	51
	Consolidated Statements of Operations, Years ended December 31, 2012, 2011 and 2010	53
	Consolidated Statements of Comprehensive Income, Years ended December 31, 2012, 2011 and 2010	54
	Consolidated Statements of Equity, Years ended December 31, 2012, 2011 and 2010	55
	Consolidated Statements of Cash Flows, Years ended December 31, 2012, 2011 and 2010	56
	Notes to Consolidated Financial Statements	57

All other schedules called for under Regulation S-X are not submitted because they are not applicable or not required, or because the required information is not material.

48

Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders of AMCOL International Corporation

We have audited the accompanying consolidated balance sheets of AMCOL International Corporation and Subsidiaries as of December 31, 2012 and 2011, and the related consolidated statements of operations, comprehensive income, equity, and cash flows for each of the three years in the period ended December 31, 2012.  These financial statements are the responsibility of the Company’s management.  Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States).  Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement.  An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements.  An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation.  We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of AMCOL International Corporation and Subsidiaries at December 31, 2012 and 2011, and the consolidated results of their operations and their cash flows for each of the three years in the period ended December 31, 2012, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), AMCOL International Corporation’s internal control over financial reporting as of December 31, 2012, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated April 10, 2013 expressed an unqualified opinion thereon.

/s/  Ernst & Young LLP

Chicago, Illinois

April 10, 2013

49

Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders of AMCOL International Corporation

We have audited AMCOL International Corporation and Subsidiaries’ internal control over financial reporting  as of December 31, 2012, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (the COSO criteria).  AMCOL International Corporation and Subsidiaries’ management is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Report on Internal Control Over Financial Reporting.  Our responsibility is to express an opinion on the company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States).  Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.  Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances.  We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.  A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.  Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, AMCOL International Corporation and Subsidiaries maintained, in all material respects, effective internal control over financial reporting as of December 31, 2012, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the 2012 consolidated financial statements of AMCOL International Corporation and Subsidiaries and our report dated April 10, 2013 expressed an unqualified opinion thereon.

/s/  Ernst & Young LLP

Chicago, Illinois

April 10, 2013

50

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Consolidated Balance Sheets

(In millions, except share and per share amounts)

	December 31,
ASSETS	2012		2011
Current assets:
Cash and cash equivalents	$	40.0	$	24.1
Accounts receivable, net		202.7		204.4
Inventories		153.8		144.3
Prepaid expenses		17.0		15.2
Deferred income taxes		7.0		4.1
Income taxes receivable		7.0		8.2
Other		2.0		6.2
Total current assets		429.5		406.5
Noncurrent assets:
Property, plant, equipment, and mineral rights and reserves:
Land		13.0		12.1
Mineral rights		48.6		52.5
Depreciable assets		552.0		484.7
		613.6		549.3
Less: accumulated depreciation and depletion		311.7		275.8
		301.9		273.5
Goodwill		70.2		69.5
Intangible assets		33.9		36.9
Investment in and advances to affiliates and joint ventures		27.8		26.4
Available-for-sale securities		14.6		3.8
Deferred income taxes		7.4		8.1
Other assets		25.3		24.4
Total noncurrent assets		481.1		442.6
		910.6		849.1

Continued…

51

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Consolidated Balance Sheets

(In millions, except share and per share amounts)

	December 31,
LIABILITIES AND SHAREHOLDERS' EQUITY	2012		2011
Current liabilities:
Accounts payable	$	51.1	$	56.5
Accrued income taxes		5.0		2.3
Accrued liabilities		58.4		59.2
Total current liabilities		114.5		118.0
Noncurrent liabilities:
Long-term debt		248.8		260.7
Pension liabilities		37.5		34.8
Deferred income taxes		12.8		12.7
Deferred compensation		9.4		8.9
Other long-term liabilities		22.5		19.1
Total noncurrent liabilities		331.0		336.2
Equity:
Common stock, par value $.01 per share,  100,000,000 shares authorized; 32,184,110 and 32,015,771 shares issued in 2012 and 2011, respectively		0.3		0.3
Additional paid in capital		105.1		94.3
Retained earnings		355.2		314.3
Accumulated other comprehensive income (loss)		0.8		(14.7	)
		461.4		394.2
Less:
Treasury stock (0 and 286,802 shares in 2012 and 2011, respectively)		-		3.4
Total AMCOL shareholders' equity		461.4		390.8
Noncontrolling interest		3.7		4.1
Total equity		465.1		394.9
Total liabilities and equity		910.6		849.1

See accompanying notes to consolidated financial statements.

52

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Consolidated Statements of Operations

(In millions, except share and per share amounts)

	Year Ended December 31,
	2012			2011			2010
Continuing Operations
Net sales
Net sales of goods	$	704.9		$	709.3		$	628.8
Service revenues		258.6			206.3			166.8
Freight revenues		22.1			28.2			30.7
		985.6			943.8			826.3
Cost of sales
Cost of goods sold		516.2			512.5			461.2
Cost of service revenues		180.8			157.0			126.0
Cost of freight revenues		17.5			22.0			24.9
		714.5			691.5			612.1
Gross profit		271.1			252.3			214.2
Selling, general and administrative expenses		173.0			166.2			145.2
Operating profit		98.1			86.1			69.0
Other income (expense):
Interest expense, net		(10.4	)		(11.0	)		(9.6	)
Other, net		(3.4	)		0.2			1.3
		(13.8	)		(10.8	)		(8.3	)
Income before income taxes and income (loss) from affiliates and joint ventures		84.3			75.3			60.7

Income tax expense	23.3		20.8		20.3
Income before income (loss) from affiliates and joint ventures	61.0		54.5		40.4
Income (loss) from affiliates and joint ventures	3.9		5.2		(11.0	)
Income (loss) from continuing operations	64.9		59.7		29.4
Discontinued Operations
Income (loss) on discontinued operations	-		(1.2	)	(0.9	)
Net income (loss)	64.9		58.5		28.5
Net income (loss) attributable to noncontrolling interests	(0.2	)	-		(0.7	)
Net income (loss) attributable to AMCOL shareholders	65.1		58.5		29.2

See accompanying notes to consolidated financial statements.

Continued…

53

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Consolidated Statements of Operations

(In millions, except share and per share amounts)

	Year Ended December 31,
	2012		2011			2010
Earnings per share attributable to AMCOL shareholders
Basic earnings (loss) per share
Continuing operations	$	2.03	$	1.89		$	0.97
Discontinued operations		-		(0.04	)		(0.03	)
Net income		2.03		1.85			0.94
Diluted earnings (loss) per share
Continuing operations	$	2.01	$	1.86		$	0.96
Discontinued operations		-		(0.04	)		(0.03	)
Net income		2.01		1.82			0.93
Amounts attributable to AMCOL shareholders
Income from continuing operations, net of tax	$	65.1	$	59.7		$	30.1
Discontinued operations, net of tax		-		(1.2	)		(0.9	)
Net income		65.1		58.5			29.2
Dividends declared per share		0.76		0.72			0.72

Consolidated Statements of Comprehensive Income

(In millions)

	Year Ended December 31,
	2012			2011			2010			2012			2011			2010			2012			2011			2010
	Total									AMCOL Shareholders									Noncontrolling Interest
Net income (loss)	$	64.9		$	58.5		$	28.5		$	65.1		$	58.5		$	29.2		$	(0.2	)	$	-		$	(0.7	)
Other comprehensive income (loss) -
Pension adjustment		(0.9	)		(13.5	)		(0.4	)		(0.9	)		(13.5	)		(0.4	)		-			-			-
Tax benefit (expense)		0.8			5.0			0.2			0.8			5.0			0.2			-			-			-
Unrealized gain (loss) on interest rate swap agreement		0.6			(2.4	)		(3.6	)		0.6			(2.4	)		(3.6	)		-			-			-
Tax benefit (expense)		-			0.9			1.3			-			0.9			1.3			-			-			-
Unrealized gain (loss) on available-for-sale securities		10.8			(10.3	)		(11.4	)		10.8			(10.3	)		(11.4	)		-			-			-
Tax benefit (expense)		(1.2	)		1.0			4.1			(1.2	)		1.0			4.1			-			-			-
Foreign currency translation adjustment		5.2			(24.8	)		7.5			5.4			(24.1	)		6.5			(0.2	)		(0.7	)		1.0
Total other comprehensive income (loss)		15.3			(44.1	)		(2.3	)		15.5			(43.4	)		(3.3	)		(0.2	)		(0.7	)		1.0
Comprehensive income (loss)		80.2			14.4			26.2			80.6			15.1			25.9			(0.4	)		(0.7	)		0.3

See accompanying notes to consolidated financial statements.

54

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Consolidated Statements of Equity

(In millions, except share and per share amounts)

	AMCOL Shareholders
	Common Stock										Accumulated
											Other
	Number				Additional						Comprehensive
	of				Paid-in			Retained			Income			Treasury			Noncontrolling			Total
	Shares		Amount		Capital			Earnings			(Loss)			Stock			Interest			Equity
Balance at December 31, 2009		32,015,771	$	0.3	$	84.8		$	271.6		$	32.0		$	(14.3	)	$	1.0		$	375.4
Net income (loss)									29.2									(0.7	)		28.5
Cash dividends ($0.72 per share)									(22.3	)											(22.3	)
Issuance of 472,917 treasury shares pursuant to employee stock compensation plans						2.7									5.4						8.1
Tax benefit from employee stock compensation plans						0.3															0.3
Vesting of common stock in connection with employee stock compensation plans						4.6															4.6
Deconsolidation of variable interest entity																		(1.0	)		(1.0	)
Purchase of noncontrolling interest shares						2.7															2.7
Other Comprehensive income (loss)												(3.3	)					1.0			(2.3	)
Balance at December 31, 2010		32,015,771		0.3		95.1			278.5			28.7			(8.9	)		0.3			394.0
Net income (loss)									58.5									-			58.5
Cash dividends ($0.72 per share)									(22.7	)											(22.7	)
Issuance of 482,144 treasury shares pursuant to employee stock compensation plans						2.5									5.5						8.0
Tax benefit from employee stock compensation plans						0.6															0.6
Vesting of common stock in connection with employee stock compensation plans						4.9															4.9
Purchase of noncontrolling interest shares						(5.4	)											(0.3	)		(5.7	)
Sale of subsidiary shares to noncontrolling interest						(3.4	)					(1.4	)					4.8			-
Other Comprehensive income (loss)												(42.0	)					(0.7	)		(42.7	)
Balance at December 31, 2011		32,015,771		0.3		94.3			314.3			(14.7	)		(3.4	)		4.1			394.9
Net income (loss)									65.1									(0.2	)		64.9
Cash dividends ($0.76 per share)									(24.2	)											(24.2	)
Issuance of 168,339 common stock and 286,802 treasury shares pursuant to employee stock compensation plans		168,339				6.3									3.4						9.7
Tax benefit from employee stock compensation plans						(0.1	)														(0.1	)
Vesting of common stock in connection with employee stock compensation plans						4.5															4.5
Contribution from noncontrolling partner						0.1															0.1
Other Comprehensive income (loss)												15.5						(0.2	)		15.3
Balance at December 31, 2012		32,184,110	$	0.3	$	105.1		$	355.2		$	0.8		$	-		$	3.7		$	465.1

See accompanying notes to consolidated financial statements.

55

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Consolidated Statements of Cash Flows

(In millions)

	Year Ended December 31,
	2012			2011			2010
Cash flow from operating activities:
Net income (loss)	$	64.9		$	58.5		$	28.5
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation, depletion, and amortization		45.3			42.1			36.3
Undistributed losses (earnings) from affiliates and joint ventures		(2.0	)		(3.6	)		11.5
Increase (decrease) in allowance for doubtful accounts		5.5			5.1			0.3
Decrease (increase) in deferred income taxes		(0.8	)		6.8			5.2
Tax benefit from employee stock plans		(0.1	)		0.6			0.3
(Gain) loss on sale of depreciable assets		(1.0	)		(0.8	)		0.2
Impairment charge		0.9			0.1			1.0
Stock compensation expense		4.4			4.9			4.5
Excess tax benefits on stock option exercises		(0.4	)		(0.7	)		(0.4	)
Other		2.3			0.5			(0.3	)
(Increase) decrease in current assets, net of effects of acquisitions:
Accounts receivable		(0.3	)		(37.2	)		(45.7	)
Income taxes receivable		1.2			0.3			(6.7	)
Inventories		(7.6	)		(46.1	)		(11.3	)
Prepaid expenses		(1.6	)		(3.6	)		3.2
Other assets		-			(0.1	)		-
Increase (decrease) in current liabilities, net of effects of acquisitions:
Accounts payable		(6.7	)		10.0			12.6
Accrued liabilities and income taxes		(1.1	)		4.4			9.2
(Increase) decrease in other noncurrent assets		(0.4	)		(0.6	)		(4.4	)
Increase (decrease) in other noncurrent liabilities		6.2			(1.3	)		4.3
Net cash provided by operating activities		108.7			39.3			48.3
Cash flow from investing activities:
Proceeds from sale of land and depreciable assets		2.4			1.9			0.8
Capital expenditures		(74.5	)		(61.0	)		(47.3	)
(Increase) decrease in investments and advances (to) from affiliates and joint ventures		0.2			(2.9	)		(2.7	)
Proceeds from sale of interests in affliates and joint ventures		2.4			6.2			-
Acquisition of businesses, net of cash acquired		-			-			(0.4	)
Other		1.4			1.6			0.9
Net cash used in investing activities		(68.1	)		(54.2	)		(48.7	)
Cash flow from financing activities:
Proceeds from issuance of debt		1,575.8			1,345.0			1,229.0
Principal payments of debt		(1,588.1	)		(1,319.7	)		(1,201.3	)
Purchase of noncontrolling interest		-			-			(11.9	)
Proceeds from exercise of stock awards		9.7			8.1			5.4
Excess tax benefits on stock option exercises		0.4			0.7			0.4
Contribution from noncontrolling partner		0.1			-			-
Dividends paid		(23.5	)		(22.8	)		(22.4	)
Net cash provided by (used in) financing activities		(25.6	)		11.3			(0.8	)
Effect of foreign currency rate changes on cash		0.9			0.9			0.3
Net increase (decrease) in cash and cash equivalents		15.9			(2.7	)		(0.9	)
Cash and cash equivalents at the beginning of the year		24.1			26.8			27.7
Cash and cash equivalents at end of the year		40.0			24.1			26.8
Supplemental disclosures of cash flow information:
Cash paid for:
Interest, net	$	9.6		$	9.8		$	9.2
Income taxes, net	$	18.3		$	9.6		$	18.8

See accompanying notes to consolidated financial statements.

56

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

(1) Summary of Significant Accounting Policies

Recently Adopted Accounting Pronouncements

In September 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2011-08, codified in Accounting Standards Codification (“ASC”) Topic 350 – Intangibles – Goodwill and Other.  ASU 2011-08 simplifies how entities test goodwill for impairment.  It permits an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount.  This assessment can then be used to determine whether it is necessary to perform the two-step goodwill impairment test described in Topic 350.  The adoption of this ASU on January 1, 2012 did not have a material impact on our financial statements.

In June 2011, the FASB issued ASU 2011-05, codified in ASC Topic 220 – Comprehensive Income to increase the prominence of items reported in other comprehensive income (“OCI”).  This ASU requires presentation of items of net income, items of OCI and total comprehensive income either in one continuous statement or two separate but consecutive statements.  This ASU does not change the items which must be reported in OCI, how such items are measured or when they must be reclassified to net income.  The FASB subsequently deferred the effective date of certain provisions of this ASU pertaining to the reclassification of items out of accumulated other comprehensive income, pending the issuance of further guidance on that matter.  The adoption of this ASU on January 1, 2012 did not have a material impact on our financial statements.

In May 2011, the FASB issued ASU 2011-04, codified in ASC Topic 820 – Fair Value Measurements.  This ASU includes amendments that clarify the intent about the application of existing fair value measurement requirements.  Specifically, it requires additional disclosures for fair value measurements that are based on significant inputs.  The adoption of this ASU on January 1, 2012 did not have a material impact on our financial statements.

Accounting Pronouncements not yet adopted

In February 2013, the FASB issued ASU 2013-02 codified in ASC Topic 220 – Comprehensive Income which adds new disclosure requirements for items reclassified out of accumulated other comprehensive income.  This ASU requires entities to disclose additional information about reclassification adjustments, including changes in accumulated other comprehensive income balances by component and significant items reclassified out of accumulated other comprehensive income.  This ASU will primarily impact our disclosures for reclassification adjustments and as such is not expected to have a material impact on our financial statements when we adopt it on January 1, 2013.

In July 2012, the FASB issued ASU 2012-02, codified in ASC Topic 350 – Intangibles – Goodwill and Other.   This ASU gives entities the option to first assess the qualitative factors to determine whether the existence of events and circumstances indicates that it is more likely than not that an indefinite-lived intangible asset is impaired.  If impairment is indicated, the fair value of the indefinite-lived intangible asset should be determined and the quantitative impairment test should be performed by comparing the fair value with the carrying value in accordance with subtopic 350-30.  If impairment is not indicated, the entity is not required to take further action.  The ASU will not have a material impact on our financial statements when we adopt it on January 1, 2013.

Principles of Consolidation

The consolidated financial statements include the accounts of our domestic and foreign subsidiaries as well as variable interest entities for which we have determined that we are the primary beneficiary.  We consolidate all subsidiaries in which we own more than 50% of their equity.  We use the equity method of accounting to incorporate the results of our investments in companies in which we have significant influence.

57

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

Our corporate segment includes the elimination of intersegment sales as well as certain expenses associated with research and development, management, employee benefits and information technology activities for our Company.  Approximately 71% and 77% of the revenue elimination in the years ended December 31, 2012 and 2011, respectively, and 100% of the revenue elimination in the year ended December 31, 2010 represent the elimination of shipping revenues between our transportation segment and its domestic sister companies.

Segments

In the fourth quarter of 2012, we renamed three of our segments to better reflect their business operations.  The minerals and materials, environmental, and oilfield services segments are now named performance materials, construction technologies, and energy services, respectively. We also restructured some of our product lines within the performance materials segment by including the results of our agriculture related operations in our specialty materials product line as opposed to our basic minerals product line where it had previously been included.

The composition of consolidated revenues by segment is as follows:

	Percentage of Net Sales
	2012			2011			2010
Performance materials		50	%		51	%		50	%
Construction technologies		23	%		27	%		27	%
Energy services		26	%		21	%		19	%
Transportation		4	%		6	%		6	%
Intersegment sales		-3	%		-5	%		-2	%
		100	%		100	%		100	%

Further descriptions of our products, principal markets and the relative significance of our segment operations are included in Note 2.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires us to make estimates and assumptions that affect the amount of assets, liabilities, revenues and expenses reported in our financial statements as well as certain disclosures contained therein.  Actual results may differ from those estimates.

Revenue Recognition

We recognize revenue from sales of products when title passes to the customer, the customer assumes the risks and rewards of ownership, and collectibility is reasonably assured; generally, this occurs when we ship product to customers.  We record allowances for discounts, rebates, and estimated returns at the time of sale and report these as reductions to revenue.  We generate some sales through independent, third-party representatives and record the commission paid to the representative as an expense within selling, general and administrative expenses.

We recognize revenue for freight delivery services within our transportation segment when the service is provided.  We accrue amounts payable for purchased transportation, commissions and insurance when the related revenue is recognized.

Service and rental revenues are primarily generated in our construction technologies and energy services segments.  We recognize these revenues in the period such services are performed and collectibility is reasonably assured.

58

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

We record revenue from long-term construction contracts using the percentage-of-completion method.  Progress is generally based upon costs incurred to date as compared to the total estimated costs to complete the work under the contract or the amount of product installed in relation to the total amount expected to be installed.  All known or anticipated losses on contracts are provided when they become evident.  Cost adjustments that are in the process of being negotiated with customers for extra work or changes in scope of work are included in revenue when collection is reasonably assured.

Translation of Foreign Currencies

Foreign entities generally utilize their local currency as the functional currency.  We record gains and losses resulting from foreign currency transactions in net income, and we reflect the adjustments resulting from the translation of financial statements into our reporting currency during consolidation as a component of accumulated other comprehensive income within equity.  The assets and liabilities of subsidiaries located outside of the United States are translated into U.S. dollars at the rates of exchange at the balance sheet dates.  The statements of operations are translated using average exchange rates throughout the period.

Cash Equivalents

We classify all short-term, highly liquid investments with original maturities of three months or less as cash and cash equivalents.

Inventories

Inventories are valued at the lower of cost or net realizable value.  Cost is determined by the first-in, first-out (FIFO) method.  Mineral exploration costs are expensed as incurred.

Receivables and Allowance for Doubtful Accounts

We carry our receivables at their face amount less an allowance for bad debts.  We establish the allowance for bad debts based on a review of several factors, including historical collection experience, current aging status of the customer accounts, and the financial condition of our customers.

Property, Plant, Equipment, and Mineral Rights and Reserves

Property, plant, equipment, and mineral rights and reserves are carried at cost less accumulated depreciation and depletion.  Depreciation is computed using the straight-line method for substantially all of the assets.  Certain other assets, primarily field and stockpile related equipment and mineral rights and reserves, are depreciated on the units-of-production method.

Goodwill

Goodwill represents the excess of the purchase price over the fair value of the net assets of acquired businesses.  Fair value reflects the price a market participant would be willing to pay in a potential sale of the reporting unit.  We review the carrying value of goodwill in each reporting unit for impairment annually as of October 1st or more frequently if indications exist which may suggest the carrying value is not recoverable.  Such indicators may include deterioration in general economic conditions, negative developments in equity and credit market, adverse changes in the market in which we operate, increase in input costs that have a negative impact on earnings and cash flows, or a trend of negative or declining cash flows over multiple periods, among others.

59

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

In conducting our 2012 annual goodwill impairment assessment, we relied on both the qualitative and quantitative assessment methodologies.

For the reporting units assessed using the qualitative method, we identified various events and circumstances (or factors) that would affect the estimated fair value of our reporting units and determined the level of impact a particular factor would have on the estimated fair value.  In addition, we considered the results of the most recent two-step quantitative impairment test completed for each reporting unit and compared the weighted average cost of capital between the current and prior years for each reporting unit.  We concluded that it was not more likely than not that any of our reporting units’ fair value under qualitative assessment were less than their carrying value.  As such, no further analysis was required.

For the reporting unit assessed using quantitative method, we performed a two-step quantitative impairment test.  We used a discounted cash flow model (income approach) to estimate the fair value of our reporting unit as we believe that the forecasted cash flows are the best indicator of such fair value.  A number of significant assumptions and estimates, including expectations of our reporting unit’s business performance, financial results, useful life of assets, discount rate, and comparable market data, were involved in developing the discounted cash flow model. We concluded that the fair value was not less than the carrying value and no further analysis was required.

Other Intangible Assets

Other intangible assets with a finite useful life are amortized on the straight-line method over the expected periods to be benefited.

Impairment of Long-Lived Assets

We review the carrying values of long-lived assets, including property, plant and equipment and intangible assets with a finite useful life whenever facts and circumstances indicate that the assets may be impaired.  Recoverability of assets to be held and used is measured by comparing the carrying amount of an asset to the future net undiscounted cash flows we expect it to generate.  If we consider an asset to be impaired, we record an impairment charge equal to the amount by which the carrying value of the asset exceeds the fair value.  We report an asset to be disposed of at the lower of its carrying value or fair value, less costs of disposal.

In the case of intangible assets with indefinite lives, we review them annually for impairment.  This review involves comparing the fair value of the intangible asset with its carrying amount.  If its carrying amount exceeds its fair value, we recognize an impairment loss equal to that excess.

Available-for-Sale Securities

We record available-for-sale securities at their fair value using quoted market prices.  We report their unrealized gains and losses, net of applicable taxes, as a component of accumulated other comprehensive income within equity. We have one equity security that we have accounted for as an available-for-sale security as of December 31, 2012 and 2011.

Income Taxes

We recognize deferred tax assets and liabilities relating to the future tax consequences of differences between the financial statement carrying value of existing assets and liabilities and their respective tax values.  We measure deferred tax assets and liabilities using tax rates in effect in the years in which those temporary differences are expected to be recovered or settled.  We recognize the effect that changes in tax rates have on deferred tax assets and liabilities in income in the period that the change is enacted.  Valuation allowances are recorded to reduce deferred tax assets to amounts that are more likely than not to be realized.  We classify interest and penalties associated with income taxes, including uncertain tax positions, within the income tax expense line item of our Consolidated Statement of Operations.

60

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

Freight and Sales Taxes

We report amounts charged to customers for shipping and handling fees as revenues and we report amounts incurred for these costs within cost of sales in the consolidated statements of operations (i.e. gross presentation with revenues and cost of sales).  Also, we report amounts charged to customers for sales taxes and the related costs incurred for sales tax remittances to governmental agencies within net sales in the Consolidated Statement of Operations (i.e. net presentation within revenues).

Product Liability & Warranty Expenses

We report expenses incurred for warranty and product liability costs in general, selling and administrative expenses in our Consolidated Statement of Operations.  Our warranty accrual is based on known warranty issues as of the balance sheet date as well as a reserve for unidentified claims based on historical experience.

Legal Fees

We report expenses for fees, including legal costs associated with loss contingencies, when services are performed.

Land Reclamation

We mine land for various minerals using a surface-mining process that requires the removal of overburden.  In many instances, we are obligated to restore the land upon completion of the mining activity.  As we remove overburden, we recognize this liability for land reclamation based on the estimated fair value of the obligation.  We adjust the obligation to reflect the passage of time and changes in estimated future cash outflows.

Research and Development

Research and development costs are expensed as incurred within selling, general and administrative expenses.

Earnings per Share

Basic earnings per share is computed by dividing net income attributable to AMCOL shareholders by the weighted average number of common shares outstanding. Diluted earnings per share is similarly computed, except the denominator is increased to include the dilutive effects of stock compensation awards and other share equivalents.  Stock compensation awards are antidilutive and therefore excluded from our diluted earnings per share calculation when their exercise would result in a net decrease in the weighted average number of common shares outstanding.  A reconciliation between the shares used to compute basic and diluted earnings per share follows:

61

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

	2012		2011		2010
Weighted average common shares outstanding for the year		32,050,538		31,708,949		31,178,813
Dilutive impact of stock equivalents		347,827		436,824		368,778
Weighted average common and common equivalent shares for the year		32,398,365		32,145,773		31,547,591
Common shares outstanding at December 31		32,184,110		31,728,969		31,032,791
Weighted average anti-dilutive shares excluded from the computation of diluted earnings per share		402,485		189,768		470,097

Stock-Based Compensation

We account for stock-based compensation using the grant date fair value, which is based on the Black-Scholes option-pricing model.  We recognize compensation cost over the requisite service period, which is generally the vesting period of the award.

Derivative Instruments and Hedging Activities

From time to time, we use derivative financial instruments to manage exposures to changes in interest rates and foreign currency exchange rates.  We do not use derivative instruments for trading or other speculative purposes.  We recognize our derivative instruments as either assets or liabilities in the balance sheet at their fair value.  Our recognition of changes in the fair value (i.e. gains and losses) of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and the type of that relationship.  Hedges designated as cash flow hedges result in the changes in fair value being recorded in accumulated other comprehensive income.  Changes in the fair value of derivative financial instruments for which hedge accounting is not applied, are recorded within Other, net within our Consolidated Statement of Operations.

(2) Segment, Geographic, and Market Information

We determine our operating segments based on the discrete financial information that is regularly evaluated by our chief operating decision maker, our President and Chief Executive Officer, in deciding how to allocate resources and in assessing performance.  Our reportable measure of profit or loss for each segment is operating profit, which is defined as net sales less cost of sales and selling, general and administrative expenses related to a segment’s operations.  The costs deducted to arrive at operating profit do not include several items, such as net interest or income tax expense.

Our five segments are as follows:

· Performance materials - mines, processes and distributes minerals and products for use in various industrial and consumer markets, including metalcasting, pet care, laundry care, and drilling industries;

· Construction technologies - provides services relating to and processes and distributes clay-based and other products for use as a moisture barrier in commercial construction, landfill liners and in a variety of other industrial and commercial applications;

· Energy services - provides a variety of services and equipment rentals for both onshore and offshore applications to customers in the oil and natural gas industry;

· Transportation - includes a long-haul trucking business and a freight brokerage business that provides services domestically to our subsidiaries as well as third-party customers; and

· Corporate – intersegment sales are not material and are eliminated in our corporate segment.  These are most notably sales between our transportation segment and our performance materials and construction technologies segments as well as sales between our performance materials segment to our construction technologies and energy services segments.  Corporate segment also includes expenses associated with certain research and development, management, benefits and information technology activities.

62

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

Segment assets are those assets used within each segment.  Corporate assets include assets used in the operation of this segment as well as those used by or shared amongst our segments, including certain cash and cash equivalents, fixed assets, assets associated with certain employee benefit plans, and other miscellaneous assets.

63

The following table sets forth certain financial information as of and for the years ended December 31, 2012, 2011 and 2010:

	2012			2011			2010
Net sales:
Performance materials	$	491.9		$	476.7		$	416.5
Construction technologies		223.1			251.9			225.5
Energy services		257.3			194.7			153.6
Transportation		44.0			54.1			52.2
Intersegment sales		(30.7	)		(33.6	)		(21.5	)
Total		985.6			943.8			826.3
Operating profit (loss):
Performance materials	$	76.3		$	67.1		$	53.5
Construction technologies		15.6			17.3			20.4
Energy services		28.7			21.3			13.7
Transportation		0.8			2.2			2.4
Corporate		(23.3	)		(21.8	)		(21.0	)
Total		98.1			86.1			69.0
Assets:
Performance materials	$	454.0		$	430.8		$	410.4
Construction technologies		157.6			159.4			161.0
Energy services		225.8			194.7			172.5
Transportation		4.0			3.9			4.0
Corporate		69.2			60.3			59.4
Total		910.6			849.1			807.3
Depreciation, depletion and amortization:
Performance materials	$	19.6		$	20.6		$	17.2
Construction technologies		5.5			5.4			5.4
Energy services		17.1			13.3			11.9
Transportation		0.1			0.1			-
Corporate		3.0			2.7			1.8
Total		45.3			42.1			36.3
Capital expenditures:
Performance materials	$	29.4		$	27.3		$	29.7
Construction technologies		8.3			8.3			2.6
Energy services		31.5			23.1			13.2
Transportation		0.1			0.2			0.1
Corporate		5.2			2.1			1.7
Total		74.5			61.0			47.3
Research and development expenses:
Performance materials	$	7.2		$	6.5		$	5.9
Construction technologies		2.3			2.3			2.3
Energy services		0.9			0.2			0.7
Corporate		-			0.1			0.3
Total		10.4			9.1			9.2

64

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

The following table sets forth certain geographic financial information as of and for the three years ending December 31st.  EMEA includes the European, Middle East and African geographic regions.  Geographic sales and operating profit are determined based on origin of the sale as opposed to destination of the sale.  Inter-regional sales and operating profit are eliminated in Americas.

	2012		2011		2010
Sales to unaffiliated customers shipped from:
Americas	$	630.7	$	590.0	$	516.9
EMEA		191.6		220.1		185.6
Asia Pacific		163.3		133.7		123.8
Total		985.6		943.8		826.3
Operating profit from sales from:
Americas	$	65.5	$	57.5	$	45.8
EMEA		10.4		10.3		5.6
Asia Pacific		22.2		18.3		17.6
Total		98.1		86.1		69.0
Accounts receivable in:
Americas	$	109.9	$	112.3	$	106.0
EMEA		45.3		51.9		46.5
Asia Pacific		47.5		40.2		37.3
Total		202.7		204.4		189.8
Property, plant, equipment, and mineral rights and reserves in:
Americas	$	134.8	$	116.0	$	107.7
EMEA		112.3		108.7		114.3
Asia Pacific		54.8		48.8		49.7
Total		301.9		273.5		271.7
Identifiable assets in:
Americas	$	448.3	$	420.4	$	428.7
EMEA		303.3		289.4		265.5
Asia Pacific		159.0		139.3		113.1
Total		910.6		849.1		807.3

Net sales by product line for each fiscal year are as follows:

	2012		2011		2010
Metalcasting	$	265.5	$	247.3	$	196.7
Oilfield services		257.3		194.7		153.6
Specialty materials		106.6		116.8		112.7
Lining technologies		90.5		104.4		111.0
Building materials		78.5		80.7		58.7
Pet products		52.9		56.1		62.0
Basic minerals		55.2		48.2		43.8
Contracting services		18.8		36.0		31.0
Drilling products		38.2		31.4		26.1
Transportation		22.1		28.2		30.7
Total		985.6		943.8		826.3

65

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

(3) Balance Sheet Related Information

We are exposed to credit risk on certain assets, primarily accounts receivable.  We provide credit to customers in the ordinary course of business and perform ongoing credit evaluations.  Concentrations of credit risk with respect to trade receivables are limited due to the large number of customers comprising our customer base.  We believe our allowance for doubtful accounts is sufficient to cover customer credit risks.  The allowance for doubtful accounts as of and the activity for the years ended December 31 was as follows:

	2012			2011			2010
Balance at the beginning of the year	$	7.5		$	6.6		$	6.3
Charged to expense (income)		5.3			3.6			2.4
Write-offs and currency translation adjustments		(1.8	)		(2.7	)		(2.1	)
Balance at the end of the year		11.0			7.5			6.6

Inventories at December 31 consisted of:

	2012		2011
Crude stockpile inventories	$	60.8	$	53.4
In-process and finished goods inventories		70.5		65.0
Other raw material, container, and supplies inventories		22.5		25.9
		153.8		144.3

Included within Other raw material, container, and supplies inventories in the table above is our reserve for slow moving and obsolete inventory.  The balance of this reserve as of and the activity for the years ended December 31 was as follows:

	2012			2011			2010
Balance at the beginning of the year	$	2.1		$	2.7		$	2.1
Charged to costs and expenses		2.1			2.1			4.0
Disposals and currency translation adjustments		(1.6	)		(2.7	)		(3.4	)
Balance at the end of the year		2.6			2.1			2.7

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AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

The following table presents our reclamation liability at the end of and changes during each of the years presented:

	2012			2011
Balance at beginning of the year	$	9.3		$	8.0
Settlement of obligations		(3.9	)		(4.3	)
Liabilities incurred and accretion expense		4.2			6.0
Currency translation adjustments		(0.1	)		(0.4	)
Balance at the end of the year		9.5			9.3

Accrued liabilities at December 31 consisted of:

	2012		2011
Bonus	$	11.5	$	9.7
Employee benefits and related costs		10.8		10.2
Dividends payable		6.4		5.7
Other		29.7		33.6
		58.4		59.2

Accumulated other comprehensive income (loss) at December 31 was comprised of the following components:

	2012			2011
Cumulative foreign currency translation	$	6.0		$	0.6
Prior service cost on pension plans (net of tax benefit of $0.1 in 2012 and $0.1 in 2011)		(0.2	)		(0.2	)
Net actuarial loss on pension plans (net of tax benefit of $7.8 in 2012 and $6.9 in 2011)		(12.0	)		(11.9	)
Unrealized loss on interest rate swap agreement (net of tax benefit of $3.3 in 2012 and $3.3 in 2011)		(5.1	)		(5.7	)
Unrealized gain on available-for-sale securities (net of tax expense of $1.2 in 2012 and $0 in 2011)		12.1			2.5
		0.8			(14.7	)

(4) Property, Plant, Equipment and Mineral Rights and Reserves

Property, plant, equipment and mineral rights and reserves consisted of the following:

	December 31,
	2012		2011
Mineral rights and reserves	$	48.6	$	52.5
Land		13.0		12.1
Buildings and improvements		104.9		97.5
Machinery and equipment		414.5		362.0
Construction in progress		32.6		25.2
		613.6		549.3

The range of useful lives to depreciate plant and equipment is as follows:

Buildings and improvements	3-50 years
Machinery and equipment	1-24 years

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AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

Depreciation and depletion were charged to income as follows:

	2012		2011		2010
Depreciation expense	$	39.3	$	35.0	$	30.1
Depletion expense		1.6		2.6		1.2
		40.9		37.6		31.3

(5) Goodwill and Intangible Assets

The balance of goodwill by segment and the activity occurring in the past two fiscal years is as follows:

	Performance Materials			Construction Technologies			Energy Services		Consolidated
Balance at December 31, 2010	$	18.2		$	21.7		$	31.0	$	70.9
Change in goodwill relating to:
Sale of business		-			(0.2	)		-		(0.2	)
Foreign exchange translation		(0.8	)		(0.4	)		-		(1.2	)
Total changes		(0.8	)		(0.6	)		-		(1.4	)
Balance at December 31, 2011		17.4			21.1			31.0		69.5
Change in goodwill relating to:
Foreign exchange translation		0.4			0.3			-		0.7
Total changes		0.4			0.3			-		0.7
Balance at December 31, 2012		17.8			21.4			31.0		70.2

Intangible assets were as follows:

	December 31, 2012							December 31, 2011
	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Gross Carrying Value		Accumulated Amortization			Net Carrying Value
Intangibles subject to amortization:
Trademarks	$	1.6	$	(1.6	)	$	-	$	1.6	$	(1.5	)	$	0.1
Patents		6.9		(6.9	)		-		6.9		(6.8	)		0.1
Customer related assets		47.1		(23.0	)		24.1		47.1		(19.7	)		27.4
Non-compete agreements		2.2		(2.2	)		-		2.2		(2.1	)		0.1
Developed technology		4.0		(2.4	)		1.6		4.0		(2.0	)		2.0
Other		3.9		(1.8	)		2.1		2.5		(1.4	)		1.1
Subtotal		65.7		(37.9	)		27.8		64.3		(33.5	)		30.8
Intangibles not subject to amortization:
Trademarks and tradenames		6.1		-			6.1		6.1		-			6.1
Total		71.8		(37.9	)		33.9		70.4		(33.5	)		36.9

68

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

Intangible assets with finite lives are being amortized primarily on a straight-line basis over their estimated useful lives.  The weighted average amortization period of our intangible assets with finite lives is 11 years.  We did not recognize any material impairment charge in either of the years included above with respect to intangible assets.  Amortization expense on intangible assets for each of the years ended December 31, 2012, 2011, and 2010 was $4.3, $4.8, and $5.1, respectively.  We estimate amortization expense of intangible assets for the future years ending December 31 will approximate the following amounts:

	Amount
2013	$	4.3
2014		4.0
2015		3.8
2016		3.8
2017		3.0

(6) Equity Investees

Information about our investments in and advances to affiliates and joint ventures at December 31, 2012 is as follows:

	Ownership Interest
Ashapura Volclay Limited		50	%
CETCO-Bentonit Uniao Technologias Ambientais Ltda.		50	%
Egypt Bentonite & Derivatives Co.		30	%
Egypt Mining & Drilling Co.		31	%
Egypt Nano Technologies Co.		27	%
Maprid Tech Cast, S.A. de C.V.		49	%
Volclay de Mexico, S.A. de C.V.		49	%
Volclay Japan Co., Ltd.		50	%

We account for all of the above investments under the equity method.  We record the majority of our equity in the earnings of our investments in affiliates and joint ventures on a one quarter lag.  None of our equity investees are publicly traded, and the difference between our investment and the underlying net equity of the investee is immaterial.

In 2012, we recorded income of $3.9 from our joint venture and affiliated entities, which was primarily generated from Ashapura Volclay Limited, Volclay Japan Co. Ltd, and Volclay de Mexico, SA. de C.V.   

In 2011, we recorded income of $5.2 from our joint venture and affiliated entities, of which $2.1 related to the sale of Ashapura AMCOL N.V., our Belgian joint-venture which we sold in the second quarter of 2011.  The remaining income was primarily generated from Ashapura Volclay Limited, Volclay Japan Co. Ltd, and Volclay de Mexico, SA. de C.V.  In the third quarter of 2011, we sold our interest in Albagle Enterprise Limited, our Cypriot joint-venture whose operations were mainly in Russia, at an immaterial loss.

In 2010, we recorded losses of $11.0 from our joint venture and affiliated entities.  Of these losses $7.2 is from Albagle Enterprise Limited and $6.9 is from Ashapura AMCOL N.V.  We recorded an impairment on Albagle Enterprise Limited due to its continued poor financial performance which was not expected to recover.  Ashapura AMCOL N.V. impaired its fixed assets due its inability to generate profits.  Our investments in these ventures had been reduced to zero as of December 31, 2010.

69

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

(7) Income Taxes

Total income tax expense (benefit) for the years ended December 31 was comprised of the following:

	2012		2011			2010
Continuing operations	$	23.3	$	20.8		$	20.3
Discontinued operations				(0.6	)		(0.7	)
		23.3		20.2			19.6

Income from continuing operations before income taxes and income (loss) from affiliates and joint ventures was comprised of the following:

	2012		2011		2010
Income from continuing operations before income taxes and income (loss)from affiliates and joint ventures:
Domestic	$	56.4	$	53.8	$	43.6
Foreign		27.9		21.5		17.1
		84.3		75.3		60.7

The components of the provision for income taxes attributable to income from continuing operations before income taxes and income (loss) from affiliates and joint ventures for the years ended December 31 consisted of:

	2012			2011			2010
Provision (benefit) for income taxes:
Federal:
Current	$	14.0		$	5.2		$	7.4
Deferred		0.8			6.4			2.1
State:
Current		2.8			2.9			2.4
Deferred		(1.9	)		0.4			-
Foreign:
Current		8.4			8.0			7.4
Deferred		(0.8	)		(2.1	)		1.0
		23.3			20.8			20.3

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AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

The tax effects of temporary differences that gave rise to significant portions of the deferred tax assets and liabilities as of December 31 were as follows:

	2012			2011
Deferred tax assets attributable to:
Accounts receivable	$	2.1		$	1.1
Inventories		2.7			1.7
Employee benefit plans		28.3			25.6
Accrued liabilities		0.6			0.5
Employee incentive plans		2.4			1.3
Tax credit carryforwards		6.9			7.2
Available-for-sale securities		-			2.8
Other		0.3			0.8
Total deferred tax assets		43.3			41.0
Deferred tax liabilities attributable to:
Plant and equipment		(17.7	)		(17.6	)
Land and mineral reserves		(12.7	)		(13.5	)
Joint ventures		(2.0	)		(1.8	)
Intangible assets		(2.7	)		(1.7	)
Available-for-sale securities		(1.2	)		-
Other		(0.8	)		(0.5	)
Total deferred tax liabilities		(37.1	)		(35.1	)
Valuation allowances		(5.1	)		(6.8	)
Net deferred tax asset (liability)		1.1			(0.9	)

We believe it is more likely than not that the deferred tax assets above will be realized in the normal course of business.

The following analysis reconciles the U.S. statutory federal income tax rate to the effective tax rates related to income from continuing operations before income taxes and equity income (loss) of affiliates and joint ventures:

	2012						2011						2010
	Amount			Percent of Pretax Income			Amount			Percent of Pretax Income			Amount			Percent of Pretax Income
Provision for income taxes at
U.S. statutory rates	$	29.5			35.0	%	$	26.3			35.0	%	$	21.2			35.0	%
Increase (decrease) in taxes resulting from:
Percentage depletion		(5.0	)		-6.0	%		(4.9	)		-6.5	%		(3.9	)		-6.4	%
State taxes, net of federal benefit		1.7			2.1	%		2.2			2.9	%		1.5			2.6	%
Foreign tax rates		(3.9	)		-4.6	%		(1.0	)		-1.4	%		(0.9	)		-1.5	%
Change in reserve for tax uncertainties		-			0.0	%		(0.7	)		-0.9	%		0.1			0.1	%
Domestic manufacturing deduction		(1.6	)		-1.9	%		(0.8	)		-1.1	%		(0.5	)		-0.8	%
Change in state tax rates		(1.9	)		-2.2	%		-			0.0	%		(0.1	)		-0.2	%
Foreign witholding tax		1.6			2.0	%		1.0			1.3	%		0.6			1.0	%
Foreign tax credits		(3.2	)		-3.8	%		(2.4	)		-3.1	%		(2.2	)		-3.6	%
Changes to valuation allowance		1.9			2.2	%		(0.2	)		-0.3	%		3.4			5.6	%
Tax from foreign disregarded entities		0.4			0.5	%		0.3			0.3	%		1.4			2.2	%
Other		3.8			4.3	%		1.0			1.4	%		(0.3	)		-0.6	%
		23.3			27.6	%		20.8			27.6	%		20.3			33.4	%

71

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

Percentage Depletion

Depletion deductions are federal income tax deductions that arise from extracting minerals from the ground.  There are two methods of calculating depletion: cost depletion and percentage depletion.  Cost depletion deduction is similar to depreciation in that it allows us to recover the cost of an asset over the resources’ productive life.  Percentage depletion deduction is computed on the basis of the income from the property rather than capitalization costs.  It is different from depreciation and cost depletion deductions, however, in that percentage depletion deduction in excess of cost is a permanent book to tax difference, whereas depreciation and cost depletion deductions are temporary in nature.  Hence, percentage depletion deduction affects the effective tax rate whereas depreciation and cost depletion deductions do not.  We calculate depletion under the percentage depletion method based upon revenues and costs from our mining activities in the U.S.

Tax on Reinvested Earnings

We have not provided for United States federal income tax and foreign income withholding taxes on approximately $138.9 and $113.6 of undistributed earnings from international subsidiaries as of December 31, 2012 and 2011, respectively, because such earnings are intended to be reinvested indefinitely outside of the U.S.  If these earnings were distributed, foreign tax credits may become available under current law to reduce or eliminate the resulting income tax liability in the United States.

Tax Holidays

We have benefitted from tax holidays in both Poland and Thailand as a result of our locating and investing in special economic zones in each country.  These tax holidays resulted in reductions to our income tax expense of $0.2, $0.1, and $0.5 in 2012, 2011 and 2010, respectively, representing benefits of $0.01, $0.00 and $0.01 to diluted earnings per share in 2012, 2011 and 2010, respectively.

Our agreement with the Polish tax authorities expired in 2010.  We continue to pursue other opportunities in an effort to minimize income tax within the country.

Our agreement with the Thai tax authorities provides for tax holidays on several investments.  The most significant tax exemption is on all income from manufacturing operations (distributed goods are still subject to taxation) related to our initial investment.   These initial manufacturing activities were taxable at 50% in years 2006 through 2010.  An additional tax holiday was granted in 2007 for the expansion of our Thai facility.  Income generated from this expansion is granted a 100% tax holiday from corporate income tax for eight (8) years beginning in 2007 and then taxable at 50% for five (5) years starting in 2015.  We attempt to modify and obtain tax concessions when possible.

Exams

In the normal course of business, we are subject to examination by tax authorities throughout the world.  With few exceptions, we are no longer subject to income tax examinations by tax authorities for years prior to 2010.  The United States Internal Revenue Service (“IRS”) has examined our federal income tax returns for all open years through 2009.

NOLs and Credit Carryforwards

At December 31, 2012, we have $0.9 of various income tax credits, which we expect to utilize within the ten year carryforward period.  Due to the expiration of state operating loss carryovers, we have written off the related deferred tax asset of $0.6 and the corresponding full valuation allowance at December 31, 2012.

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AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

Unrecognized Tax Benefits

The following table summarizes the activity related to our unrecognized tax benefits:

	2012		2011			2010
Balance at beginning of the year	$	-	$	0.8		$	0.7
Increases related to prior year tax positions							0.1
Increases related to current year tax positions
Decreases related to the expiration of statue of limitation / settlement of audits				(0.8	)
Balance at the end of the year		-		-			0.8

(8) Long-term Debt

Amounts of long-term debt were as follows:

	December 31,
	2012			2011
Borrowings under revolving credit agreement	$	114.6		$	120.9
Senior notes		125.0			125.0
Other notes payable		10.2			15.5
		249.8			261.4
Less: current portion		(1.0	)		(0.7	)
		248.8			260.7

In January 2012, we entered into a new revolving credit agreement that replaced our previous revolving credit agreement.  The new credit agreement provides us with a $300 unsecured line of credit, which can be increased to $400 subject to certain customary conditions and approvals.  It is a multi-currency arrangement that will allow us to borrow certain foreign currencies at an adjusted LIBOR rate plus 1.00% to 1.75%, depending upon the ratio of our debt to EBITDA as defined therein.  The new credit agreement expires on January 20, 2017, and contains certain restrictive covenants, including covenants relating to the maintenance of net worth, leverage ratios and interest coverage ratios.  As of December 31, 2012, $185.4 remained available to us under this revolving credit line and we were in compliance with all of the covenants and ratios.

We had interest rate swaps outstanding which effectively hedge the variable interest rate on $33 of our borrowings as of December 31, 2012 and 2011, to a fixed rate of 3.3% per annum, plus credit spread.  Including the effect of this interest rate swap agreement, our borrowings under the credit agreement as of December 31, 2012 carried an average interest rate of 2.95%.

A qualified institution holds $75 of our senior notes which mature on April 2, 2017, subject to certain acceleration features upon an event of default, should one occur.  These senior notes are comprised of (a) $45 aggregate principal amount of Series 2007-A Adjustable Fixed Rate Guaranteed Senior Notes, Tranche 1, due April 2, 2017 (the “Tranche 1” notes) and (b) $30 aggregate principal amount of Series 2007-A Adjustable Floating Rate Guaranteed Senior Notes, Tranche 2 (the “Tranche 2” notes).  Tranche 1 bears interest at 5.78%, payable semi-annually in arrears on April 2nd and October 2nd of each year.  Tranche 2 bears interest at an annual rate of 0.55% plus LIBOR in effect from time to time, adjusted quarterly, and is payable quarterly in arrears.

As of December 31, 2012 and 2011, we had an interest rate swap outstanding which effectively hedges the variable interest rate of $30 of Tranche 2 senior notes to a fixed rate of 5.6% per annum.  

73

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

On April 29, 2010, we issued and sold an additional $50 of senior notes to other qualified institutional buyers pursuant to a note purchase agreement (the “Note Purchase Agreement”).  These senior notes bear interest at a fixed annual rate of 5.46%, payable semi-annually in arrears on April 29th and October 29th of each year, beginning on October 29, 2010.  Our obligations under the Note Purchase Agreement mature on April 29, 2020.

Our obligations under our revolving credit agreement, the Tranche 1 and Tranche 2 notes, and the Note Purchase Agreement are guaranteed by certain of our subsidiaries.

We also have an uncommitted, short-term credit facility maturing on November 15, 2013 that allows for maximum borrowings of $15, of which $8.5 was outstanding as of December 31, 2012 at an interest rate of 2.00%.

As of December 31, 2012, 65% of our debt is fixed at an average rate of 5.12%, the remainder of our debt contains interest rates which vary mostly in response to the changes in LIBOR.

Maturities of long-term debt outstanding at December 31, 2011 were as follows:

	2013		2014		2015		2016		2017		Thereafter
Borrowings under:
Revolving credit agreement	$	-	$	-	$	-	$	-	$	114.6	$	-
Senior notes		-		-		-		-		75.0		50.0
Other notes payable		1.0		0.5		0.1		-		8.6		-
		1.0		0.5		0.1		-		198.2		50.0

At December 31, 2012 and 2011, we had outstanding standby letters of credit of approximately $4.2 and $3.7, respectively, which are not included in our Consolidated Balance Sheets.  These letters of credit typically serve to guarantee performance of our land reclamation and workers’ compensation obligations; we have recorded amounts owed under these obligations in our Consolidated Balance Sheets as of December 31, 2012 and 2011.

(9) Derivative Instruments and Hedging Activities

As a multinational corporation with operations throughout the world, we are subject to certain market risks.  We use a variety of practices to manage these market risks, including, when considered appropriate, derivative financial instruments.  We use derivative financial instruments only for risk management and not for trading or speculative purposes.

The following table sets forth the fair values of our derivative instruments and where they are recorded within our Consolidated Balance Sheet:

		Fair Value as of December 31,
Liability Derivatives	Balance Sheet Location	2012			2011
Derivatives designated as hedging instruments:
Interest rate swaps	Other long-term liabilities	$	(8.4	)	$	(9.0	)

74

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

Cash Flow Hedges

Derivatives in Cash Flow Hedging Relationships	Amount of Gain or (Loss) Recognized in OCI on Derivatives, net of tax
	(Effective Portion)
	Year Ended December 31,
	2012		2011
Interest rate swaps	$	0.6	$	(1.5	)

We use interest rate swaps to manage variable interest rate risk on debt securities.  Interest rate differentials are paid or received on these arrangements over the life of the swap.  As of December 31, 2012 and 2011, we had an interest rate swap outstanding which effectively hedges the variable interest rate on $30 of our senior notes to a fixed rate of 5.6% per annum.  We also had other interest rate swaps outstanding which effectively hedge the variable interest rate on $33 of our borrowings as of December 31, 2012 and 2011, under our revolving credit agreement, to a fixed rate of 3.3% per annum, plus credit spread.

Other

We are exposed to potential gains or losses from foreign currency fluctuations affecting net investments and earnings denominated in foreign currencies.  We are particularly sensitive to currency exchange rate fluctuations for the following currencies: British pound sterling (GBP), Chinese renminbi (CYN), Danish kroner (DKK), Euro, Indian rupee (INR), Malaysian ringgit (MYR), Norwegian krone (NOK), Polish zloty (PLN), South African Rand (ZAR), Swiss franc (SEK), Thai baht (THB), and Turkish lira (TRY).  When considered appropriate, we enter into foreign exchange derivative contracts to mitigate the risk of fluctuations on these exposures.

We have not designated these contracts for hedge accounting treatment and therefore, changes in fair value of these contracts are recorded in earnings as follows:

Derivatives Not Designated as Hedging Instruments	Location of Gain or (Loss) Recognized in	Amount of Gain or (Loss) Recognized in Income on Derivatives
	Income on	Year Ended December 31,
	Derivatives	2012			2011			2010
Foreign exchange derivative instruments	Other, net	$	(0.4	)	$	(0.5	)	$	(0.8	)

We did not have any foreign exchange derivative instruments outstanding as of December 31, 2012 or 2011.

(10) Fair Value Measurements

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.  Our calculation of the fair value of derivative instruments includes several assumptions.  The fair value hierarchy prioritizes these input assumptions in the following three broad levels:

Level 1 – Valuation is based on quoted prices (unadjusted) in active markets for identical assets or liabilities that the company has the ability to access at the measurement date.

75

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

Level 2 – Valuation is based on quoted prices for similar assets or liabilities in active market, quoted prices for identical or similar assets or liabilities in markets that are not active and model based valuations for which all significant inputs are observable in the market.

Level 3 – Valuation is based on model based techniques that use unobservable inputs for the asset or liability. These inputs reflect our own views about the assumption market participants would use in pricing the asset or liability.

The following table categorizes our fair value instruments according to the assumptions used to calculate those values at the end of each of the past two years:

				Fair Value Measurements Using
	Asset /			Quoted Prices in					Significant
Description	(Liability)			Active Markets for		Significant Other			Unobservable
	Balance at			Identical Assets		Observable Inputs			Inputs
	12/31/2012			(Level 1)		(Level 2)			(Level 3)
Interest rate swaps	$	(8.4	)	$	-	$	(8.4	)	$	-
Available-for-sale securities		14.6			14.6		-			-
Deferred compensation plan assets		9.4			-		9.4			-
Supplementary pension plan assets		8.2			-		8.2			-

				Fair Value Measurements Using
	Asset /			Quoted Prices in					Significant
Description	(Liability)			Active Markets for		Significant Other			Unobservable
	Balance at			Identical Assets		Observable Inputs			Inputs
	12/31/2011			(Level 1)		(Level 2)			(Level 3)
Interest rate swaps	$	(9.0	)	$	-	$	(9.0	)	$	-
Available-for-sale securities		3.8			3.8		-			-
Deferred compensation plan assets		8.0			-		8.0			-
Supplementary pension plan assets		7.6			-		7.6			-

Interest rate swaps are valued using discounted cash flows.  The key input used is the LIBOR swap rate, which is observable at commonly quoted intervals for the full term of the swap.  Available-for-sale securities are valued using quoted market prices.  Deferred compensation and supplementary pension plan assets are valued using quoted prices for similar assets in active markets.

The carrying value of our long-term debt approximates its fair value as the interest rate is near the current market rate yield.  The fair value of our long-term debt is determined using current applicable rates for similar instruments as of the balance sheet date.  The fair value of long-term debt for disclosure purpose is a Level 3 liability within the fair value category.

76

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

(11) Noncontrolling Interest

In January 2011, we acquired the remaining noncontrolling interest in Volclay South Africa (Proprietary) Limited (“VSA”), a part of our chromite operations, for approximately $5.6.

In February 2011, we sold 26% of our interest in Batlhako Mining Limited (“Batlhako”) to Vengawave (Proprietary) Limited, which is a Black Economic Empowerment enterprise (a “BEE”) in the Republic of South Africa.  Batlhako is VSA’s subsidiary dedicated strictly to mining chromite and selling it to one of our other subsidiaries for further processing and sale to the end customer.  South African law requires that we have a BEE as a partner in the mining operations and this transaction was consummated to comply with those regulations.

The following table sets forth the effects of these transactions on equity attributable to AMCOL’s shareholders.

	Twelve Months Ended December 31,
	2012		2011
Net income attributable to AMCOL shareholders	$	65.1	$	58.5
Transfers from noncontrolling interest:
Decrease in additional paid-in capital for purchase of the remaining noncontrolling interest in  South Africa (Proprietary) Limited		-		(5.4	)
Decrease in additional paid-in capital for transfer of 26% interest in Batlhako		-		(3.4	)
Change from net income attributable to AMCOL shareholders and transfers from noncontrolling interest	$	65.1	$	49.7

(12) Discontinued Operations

In September 2011, our construction technologies segment sold CETCO Contracting Services Company, which comprised our domestic contracting services business.  The operations of this business, including the immaterial loss recorded on the sale, have been reclassified and are recorded net of income tax within Income (loss) on discontinued operations within our Consolidated Statement of Operations.

(13) Leases

In 2008, we entered into a sale-leaseback transaction involving the construction of a new corporate facility.  Under terms of the operating lease, rental payments in fiscal 2012, 2011 and 2010 approximate $2.7 , $2.6, and $2.6, respectively,  and increase 2% annually thereafter through December 2028.

We have several noncancelable leases for equipment, software, and plant facilities.  Total rent expense under operating lease agreements was approximately $20.1, $14.4 and $12.5 in 2012, 2011 and 2010, respectively.

The following is a schedule of future minimum lease payments for operating leases (with initial terms in excess of one year) as of December 31, 2012:

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Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

	Minimum Lease
	Payments
	Domestic		Foreign		Total
Year ending December 31:
2013	$	17.4	$	2.6	$	20.0
2014		14.4		1.9		16.3
2015		11.5		1.1		12.6
2016		8.4		0.7		9.1
2017		6.0		0.5		6.5
Thereafter		45.4		1.1		46.5
Total		103.1		7.9		111.0

(14) Employee Benefit Plans

We have a defined benefit pension plan covering substantially all of our domestic employees hired before January 1, 2004.  The benefits are based upon years of service and qualifying compensation.  Our funding is calculated using the actuarially determined unit credit cost method.  Contributions are intended to provide not only for benefits attributed to services to date, but also for those expected to be earned in the future.

In addition to the qualified plan, we sponsor a supplementary pension plan (SERP) that provides benefits in excess of qualified plan limitations for certain employees.

The following tables set forth our pension obligations and funded status at December 31:

	Pension Benefits
	Defined Benefit Pension Plan						Supplementary Pension Plan
	2012			2011			2012			2011
Change in benefit obligations:
Beginning projected benefit obligation	$	58.1		$	48.0		$	11.6		$	9.2
Service cost		1.7			1.5			0.3			0.2
Interest cost		2.7			2.6			0.5			0.5
Actuarial (gain)/loss		2.6			7.2			1.2			2.0
Benefits paid		(1.3	)		(1.2	)		(0.4	)		(0.3	)
Ending projected benefit obligation		63.8			58.1			13.2			11.6
Change in plan assets:
Beginning fair value		34.5			35.8			-			-
Actual return		4.3			(1.5	)					-
Company contribution		1.7			1.5			0.4			0.4
Benefits paid		(1.4	)		(1.3	)		(0.4	)		(0.4	)
Ending fair value		39.1			34.5			-			-
Funded status of the plan		(24.7	)		(23.6	)		(13.2	)		(11.6	)

The liabilities associated with our SERP plan and our defined benefit pension plan (net of the defined benefit plan assets) are included within Pension liabilities in our Consolidated Balance Sheet.  Included within Other Noncurrent Assets within our Consolidated Balance Sheet are invested assets for the benefit of the employees covered by the supplemental pension plan.

Pension cost in each of the following years was comprised of:

78

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

	Defined Benefit Pension Plan									Supplementary Pension Plan
	2012			2011			2010			2012		2011		2010
Service cost – benefits earned during the year	$	1.7		$	1.5		$	1.4		$	0.3	$	0.2	$	0.3
Interest cost on accumulated benefit obligation		2.7			2.6			2.4			0.5		0.5		0.5
Expected return on plan assets		(2.6	)		(2.9	)		(2.6	)		-		-		-
Net amortization and deferral		1.0			0.1			0.1			0.2		0.1		0.1
Net periodic pension cost		2.8			1.3			1.3			1.0		0.8		0.9

The following table summarizes the assumptions used in determining our pension obligations at the end of each of our last two years:

	Defined Benefit Pension Plan						Supplementary Pension Plan
	2012			2011			2012			2011
Discount rate		4.17	%		4.70	%		4.00	%		4.63	%
Rate of compensation increase		3.00	%		4.00	%		3.00	%		4.00	%
Long-term rate of return on plan assets		7.50	%		7.50	%		N/A			N/A

 The following table summarizes the assumptions used in determining our net periodic benefit cost in the years ended December 31:

	Defined Benefit Pension Plan									Supplementary Pension Plan
	2012			2011			2010			2012			2011			2010
Discount rate		4.70	%		5.51	%		5.91	%		4.63	%		5.36	%		5.95	%
Rate of compensation increase		4.00	%		4.00	%		4.00	%		4.00	%		4.00	%		4.00	%
Long-term rate of return on plan assets		7.50	%		8.00	%		8.25	%		N/A			N/A			N/A

We expect to contribute up to $1.2 to the defined benefit pension plan in 2013.  The accumulated benefit obligation (ABO) for our defined benefit pension plan was $56.4 and $49.3 at December 31, 2012 and 2011, respectively.  The ABO for our supplementary pension plan was $9.4 and $8.5 at December 31, 2012 and 2011, respectively.

The estimated future benefit payments contemplated under these plans, reflecting expected future service, as appropriate, are presented in the following table:

	Defined Benefit Pension Plan		Supplementary Pension Plan
2013	$	1.8	$	0.4
2014		2.1		0.4
2015		2.3		0.4
2016		2.5		0.5
2017		2.8		0.7
2018 through 2022		17.5		4.0

79

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

Note 3 shows the amounts included within accumulated other comprehensive income as of December 31, 2012 and 2011 that have not yet been recognized as components of net periodic benefit cost.  Of these balances at December 31, 2012, the amounts expected to be amortized in the next fiscal year are $0.1 and $1.2 for the unrecognized prior service cost and unrecognized net actuarial loss, respectively.  Excluding the effect of income taxes, the amounts recognized within other comprehensive income and the prior service cost for 2012 and 2011, are as follows:

	2012			2011
Recognized in Other Comprehensive Income:
Net actuarial loss (gain)	$	2.1		$	13.7
Amortization of net actuarial loss (gain)		(1.1	)		(0.1	)
Amortization of prior service cost (credit)		(0.1	)		(0.1	)
Total change in other comprehensive income		0.9			13.5

Defined Benefit Pension Plan

Fair values of our defined benefit pension plan assets at December 31, by asset category, are as follows:

	Fair Value Measurements as of December 31, 2012
			Quoted Prices in Active Markets for Identical Assets		Significant Observable Inputs		Significant Unobservable Inputs
	Total		Level 1		Level 2		Level 3
Short term investment funds	$	0.6	$	-	$	0.6	$	-
Equity securities:
US equity securities		14.0		1.4		12.6		-
International equity securities		9.5		4.5		5.0		-
AMCOL International common stock		2.1		2.1		-		-
Fixed income securities and bonds
Governmental agencies		0.7		-		0.7		-
Corporate bonds		5.4		5.4		-		-
Guaranteed investment contracts		1.3		-		1.3		-
Other investments
Real estate index funds		0.8		-		0.8		-
Commodities linked funds		0.7		0.7		-		-
Hedge funds		4.0		-		-		4.0
Total		39.1		14.1		21.0		4.0

80

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

	Fair Value Measurements as of December 31, 2011
			Quoted Prices in Active Markets for Identical Assets		Significant Observable Inputs		Significant Unobservable Inputs
	Total		Level 1		Level 2		Level 3
Short term investment funds	$	0.7	$	-	$	0.7	$	-
Equity securities:
US equity securities		11.2		-		11.2		-
International equity securities		6.0		2.0		4.0		-
AMCOL International common stock		1.9		1.9		-		-
Fixed income securities and bonds
Governmental agencies		1.0		1.0		-		-
Corporate bonds		5.0		5.0		-		-
Guaranteed investment contracts		2.5		-		2.5		-
Other investments
Real estate index funds		0.6		-		0.6		-
Commodities linked funds		1.7		1.7		-		-
Hedge funds		3.9		-		-		3.9
Total		34.5		11.6		19.0		3.9

Assets classified as Level 1 are valued using quoted prices on the major stock exchange on which individual assets are traded.  Our Level 2 assets are valued using net asset value.  The net asset value is quoted on a private market that is not active; however, the unit price is based on underlying investments that are traded on an active market.  Our Level 3 assets are estimated at fair value based on the most recent financial information available for the underlying securities, which are not traded on active market, and represents significant unobservable input.

The following is a reconciliation of changes in fair value measurements of plan assets using significant unobservable inputs (Level 3):

	Hedge Funds
Beginning balance at December 31, 2010	$	2.2
Purchases, sales, and settlements		1.8
Actual return on plan assets still held at reporting date		(0.1	)
Ending balance at December 31, 2011		3.9
Purchases, sales, and settlements		-
Actual return on plan assets still held at reporting date		0.1
Ending balance at December 31, 2012		4.0

We employ a total return investment approach whereby we use a mix of equities and fixed income investments to maximize the long-term return of plan assets with a prudent level of risk.  Risk tolerance is established through careful consideration of plan liabilities, plan funded status, and our corporate financial condition.  The investment portfolio contains a diversified blend of equity, fixed-income investments and alternative investments.  The investment objectives emphasize maximizing returns consistent with ensuring that sufficient assets are available to meet liabilities, and minimizing corporate cash contributions.  Our defined benefit plan assets are managed so as to include investments that balance income and capital appreciation.

81

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

Our defined benefit plan has a target range for different types of investments:  equity securities (between 41% and 69%), fixed income securities and bonds (between 18% and 31%), alternative investments (between 5% and 23%), and cash (between 0% and 10%).  This allocation takes into account factors such as the average age of employees covered by the Plan (benefit obligations) as well as overall market conditions.  Interim portfolio reviews result in investment allocations being evaluated at least twice a year by the Pension Committee and rebalancing takes place as needed.  Equity investments are diversified across U.S. and non-U.S. stocks, as well as growth, value, and small and large capitalizations.  Fixed income securities and bonds include both government and corporate investment vehicles.  These include a series of laddered debt securities as well as bond funds.

Historical markets are studied and long-term historical relationships between equities and fixed-income are preserved consistent with the widely accepted capital market principle that assets with higher volatility generate a greater return over the long run.  Current market factors such as inflation and interest rates are evaluated before long-term capital market assumptions are determined.  The long-term rate of return for plan assets is established via a building block approach with proper consideration of diversification and rebalancing.

Defined Contribution Plan

Employees hired on or after January 1, 2004 do not participate in our defined benefit pension plan or SERP.  Instead, they participate in a defined contribution plan whereby we make a retirement contribution into the employee’s savings plan equal to 3% of their compensation.  We made total contributions to this plan of $1.9, $1.8 and $1.2 in 2012, 2011 and 2010, respectively.

401(k) Savings Plan

We also have a savings plan for our U.S. personnel.  In 2012, we made a contribution in an amount equal to an employee’s contributions up to a maximum of 4% of the employee’s annual earnings.  We make contributions to this plan using either cash or our own common stock which we purchase in the open market.  Our contributions under the savings plan were $3.8 in 2012, $3.4 in 2011 and $2.8 in 2010.

Other

We also have a deferred compensation plan and a 401(k) restoration plan for our executives.

(15) Stock Compensation Plans

Nonqualified stock options, incentive stock options, and stock appreciation rights

We provide compensation to certain employees using stock based awards.  For purposes of calculating compensation cost, we estimate the fair value of each award on the date of grant using the Black-Scholes option-pricing model.  We used the following assumptions in calculating the fair value of awards granted in each of the following years:

	2012			2011			2010
Risk-free interest rate		1.0	%		2.2	%		2.7	%
Expected life of option in years		5.39			5.51			5.61
Expected dividend yield of stock		2.3	%		2.5	%		3.2	%
Expected volatility of stock price		56.4	%		49.0	%		50.8	%
Weighted-average per share fair value of options granted	$	12.36		$	11.42		$	8.62

82

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

1998 Long-Term Incentive Plan

This plan provides for the award of incentive stock options, nonqualified stock options, restricted stock, stock appreciation rights and phantom stock.  We reserved 3,900,000 shares of our common stock for issuance to our officers, directors and key employees.  Different terms and conditions apply to each form of award made under the plan.  Awards granted since 2003 vest ratably over a three year period and expire six years after the date of grant, except in the event of termination, retirement or death of the optionee or a change in control of the Company.  Options awarded under this plan prior to 2003 generally vest 40% after two years and continue to vest at the rate of 20% per year for each year thereafter until they are fully vested.  These options are exercisable as they vest and expire 10 years after the date of grant, except in the event of termination, retirement or death of the optionee or a change in control of the Company.

Changes in options outstanding are summarized as follows:

	December 31, 2012					December 31, 2011					December 31, 2010
1998 Long-Term Incentive Plan	Shares			Weighted Average Exercise Price		Shares			Weighted Average Exercise Price		Shares			Weighted Average Exercise Price
Options outstanding at January 1		169,051		$	21.82		413,710		$	19.88		720,791		$	18.19
Granted		-			-		-			-		-			-
Exercised		(165,401	)		21.80		(243,659	)		18.54		(306,548	)		15.93
Forfeited							-			-		-			-
Expired		(3,650	)		22.57		(1,000	)		14.79		(533	)		4.76
Options outstanding at December 31		-			-		169,051			21.82		413,710			19.88
Options exercisable at December 31		-			-		169,051			21.82		413,710			19.88

2006 Long-Term Incentive Plan

	December 31, 2012					December 31, 2011					December 31, 2010
2006 Long-Term Incentive Plan	Awards			Weighted Average Exercise Price		Awards			Weighted Average Exercise Price		Awards			Weighted Average Exercise Price
Awards outstanding at January 1		1,189,012		$	22.91		1,389,598		$	23.02		1,060,057		$	22.89
Granted		-			-		-			-		390,750			23.24
Exercised		(297,528	)		23.11		(170,998	)		24.04		(29,862	)		21.62
Forfeited		(3,125	)		23.24		(20,087	)		20.48		(22,722	)		19.92
Expired		(5,250	)		23.89		(9,501	)		23.64		(8,625	)		29.62
Awards outstanding at December 31		883,109			22.84		1,189,012			22.91		1,389,598			23.02
Awards exercisable at December 31		781,574			22.79		885,003			23.67		754,622			24.86

Our AMCOL International Corporation 2006 Long-Term Incentive Plan permits a total of 1,500,000 shares of AMCOL common stock to be awarded to eligible directors and employees through the use of nonqualified stock options, incentive stock options, restricted stock or restricted stock units, and stock appreciation rights.  Different terms and conditions apply to each form of award made under the plan.  Awards granted prior to 2009 have a six year life from the date of grant and vest ratably over a three year period from the date of grant.  Awards granted in 2009 have a ten year life from the date of grant and vest ratably over a three year period from the date of the grant.  No awards could be made pursuant to this plan after May 2010 when the AMCOL International Corporation 2010 Long-Term Incentive Plan was adopted as discussed later herein.

83

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

2010 Long-Term Incentive Plan

	December 31, 2012					December 31, 2011
2010 Long-Term Incentive Plan	Awards			Weighted Average Exercise Price		Awards			Weighted Average Exercise Price
Awards outstanding at January 1		356,050		$	30.66				$	-
Granted		417,420			29.80		379,425			30.66
Exercised		(567	)		30.66		-			-
Forfeited		(22,107	)		30.12		(23,375	)		30.66
Expired		(500	)		30.66		-			-
Awards outstanding at December 31		750,296			30.20		356,050			30.66
Awards exercisable at December 31		117,219			30.66		-			-

On May 6, 2010, our shareholders approved the AMCOL International Corporation 2010 Long-Term Incentive Plan.  This plan permits a total of 2,000,000 shares of AMCOL common stock to be awarded to eligible directors and employees through the use of nonqualified stock options, incentive stock options, restricted stock or restricted stock units, and stock appreciation rights.  Different terms and conditions apply to each form of award under the plan.  Awards granted under this plan have a ten year life from the date of grant and vest ratably over a three year period from the date of the grant. At any time, the Board of Directors may amend the plan, which automatically expires on May 7, 2020.

All Stock Compensation Plans

All Stock Compensation Plans	2012		2011		2010
Intrinsic value of awards exercised during the year	$	3.6	$	5.1	$	3.9
Fair value of awards vested during the year		2.9		2.4		3.9
Grant date fair value of awards granted during the year		5.2		4.3		3.4

The following table summarizes information about stock compensation awards outstanding and exercisable at December 31, 2011:

							Weighted
			Weighted				Average
All Stock Compensation Plans	Number		Average				Remaining
	of		Exercise		Intrinsic		Contractual
	Awards		Price		Value		Life (Yrs.)
Awards outstanding at December 31, 2012		1,633,405	$	26.22	$	7.3		6.29
Awards exercisable at December 31, 2012		898,793		23.82		6.2		4.46

The following table summarizes information about our nonvested stock compensation awards outstanding:

84

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

	December 31, 2012					December 31, 2011					December 31, 2010
All Stock Compensation Plans- Nonvested Awards	Awards			Weighted Average Grant date Fair value		Awards			Weighted Average Grant date Fair value		Awards			Weighted Average Grant date Fair value
Nonvested awards outstanding at January 1		660,059		$	9.80		635,726		$	7.87		721,442		$	7.46
Granted		417,420			12.36		379,425			11.42		390,750			8.62
Vested		(317,635	)		8.99		(311,630	)		7.80		(453,744	)		8.50
Forfeited		(25,232	)		11.59		(43,462	)		9.77		(22,722	)		7.59
Nonvested awards outstanding at December 31		734,612			11.55		660,059			9.80		635,726			7.87

We recorded stock compensation expense of $4.5, $3.2 and $4.1 in 2012, 2011 and 2010, respectively.  At December 31, 2012, we had approximately $3.0 of unrecognized stock compensation expense, which is expected to be recognized over a weighted-average period of 1.4 years.  We expect to satisfy the exercise of stock compensation awards by issuing new shares of common stock.

Restricted Stock Awards

The tables above exclude the impact of all restricted stock awards.

Restricted stock awards are subject to performance conditions established by the Compensation Committee of the Board of Directors.  The cost of these awards, determined to be the fair market value of the shares at the date of the grant, is expensed ratably over the performance period.

In February 2011, we granted 75,000 shares of performance based restricted stock to our executive officers pursuant to our 2010 Long-Term Incentive Plan.  These restricted stock awards have a grant date fair value of $30.66 per share, and vest ratably over a three-year period from grant date, provided that the Company, or certain reporting segments, meet certain established performance targets.  One-third of these shares vested in February 2012, and another one-third of these shares vested in February 2013, as the performance targets were met.

In 2009, we granted 40,000 shares of performance based restricted stock with December 2012 vest date to our executive officers pursuant to our 2006 Long-Term Incentive Plan.  These restricted awards have a grant date fair value of $28.42 per share. All these shares were cancelled in December 2012 as the performance targets were not met.

We recorded expense of $0.0, $1.7 and $0.5 for our restricted stock awards in 2012, 2011 and 2010, respectively.  We expect to satisfy any future distribution of shares of restricted stock by issuing new shares of common stock.

(16) Contingencies

We are party to a number of lawsuits arising in the normal course of business.  Our energy services segment is also party to two lawsuits alleging damages caused by our coiled tubing operations in Louisiana; one lawsuit alleges damages of $28 million and the other of $9 million.  We do not believe that any of the aforementioned pending litigation will have a material adverse effect on our consolidated financial statements.

85

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

(17) Quarterly Results (Unaudited)

Unaudited summarized results for each quarter of the last two years are as follows:

	2012 Quarters
	First			Second			Third			Fourth
Performance materials	$	125.2		$	131.1		$	121.0		$	114.6
Construction technologies		50.9			61.4			60.6			50.2
Energy services		55.3			61.1			69.1			71.8
Transportation		11.1			11.7			10.7			10.5
Intersegment sales		(7.1	)		(7.8	)		(7.9	)		(7.9	)
Net sales		235.4			257.5			253.5			239.2
Performance materials	$	33.4		$	35.6		$	31.2		$	26.7
Construction technologies		14.6			18.7			20.1			15.1
Energy services		15.4			19.2			17.7			18.8
Transportation		1.2			1.2			1.1			1.1
Intersegment gross profit		0.1			-			(0.3	)		0.2
Gross profit		64.7			74.7			69.8			61.9
Performance materials	$	21.5		$	22.5		$	18.0		$	14.3
Construction technologies		0.9			6.3			7.0			1.4
Energy services		4.8			7.7			7.9			8.3
Transportation		0.2			0.3			0.2			0.1
Corporate		(6.0	)		(5.7	)		(5.0	)		(6.6	)
Operating profit		21.4			31.1			28.1			17.5
Income (loss) from continuing operations	$	13.5		$	21.4		$	19.0		$	11.0
Income (loss) on discontinued operations	$	-		$	-		$	-		$	-
Net income (loss)	$	13.5		$	21.4		$	19.0		$	11.0
Net income (loss) attributable to noncontrolling interests	$	0.1		$	(0.3	)	$	-		$	-
Net income (loss) attributable to AMCOL shareholders	$	13.4		$	21.7		$	19.0		$	11.0
Basic earnings per share attributable to AMCOL shareholders (A)	$	0.42		$	0.68		$	0.59		$	0.34
Diluted earnings per share attributable to AMCOL shareholders (A)	$	0.41		$	0.67		$	0.59		$	0.34

(A)  Earnings per share (EPS) for each quarter is computed using the weighted-average number of shares outstanding during the quarter, while EPS for the year is computed using the weighted-average number of shares outstanding during the year.  Thus, the sum of the EPS for each of the four quarters may not equal the EPS for the year.

Our construction technologies segment recorded an expense of $1.8 and $0.6 in other non-operating expense to provide for estimated losses on certain non-operating assets in the first quarter ended March 31, 2012 and fourth quarter ended December 31, 2012, respectively.

Our corporate segment recorded $0.7 of selling, general and administrative expense relating to impairment of certain corporate information technology assets in the first quarter ended March 31, 2012.

86

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(In millions, except share and per share amounts)

	2011 Quarters
	First			Second			Third			Fourth
Performance materials	$	115.8		$	118.3		$	122.2		$	120.4
Construction technologies		51.7			74.8			71.0			54.4
Energy services		45.6			45.1			50.1			53.9
Transportation		12.7			14.8			14.9			11.7
Intersegment sales		(7.2	)		(9.8	)		(10.3	)		(6.3	)
Net sales		218.6			243.2			247.9			234.1
Performance materials	$	28.1		$	26.2		$	31.5		$	30.7
Construction technologies		15.3			22.2			21.8			14.6
Energy services		13.5			11.7			15.4			15.4
Transportation		1.4			1.6			1.8			1.3
Intersegment gross profit		(0.4	)		0.1			(0.1	)		0.2
Gross profit		57.9			61.8			70.4			62.2
Performance materials	$	16.1		$	13.4		$	19.5		$	18.1
Construction technologies		1.8			8.0			7.0			0.5
Energy services		5.7			3.7			5.8			6.1
Transportation		0.5			0.7			0.7			0.3
Corporate		(5.1	)		(4.9	)		(7.2	)		(4.6	)
Operating profit		19.0			20.9			25.8			20.4
Income from continuing operations	$	13.2		$	12.9		$	20.8		$	12.8
Income (loss) on discontinued operations	$	(0.1	)	$	0.2		$	(1.3	)	$	-
Net income	$	13.1		$	13.1		$	19.5		$	12.8
Net income (loss) attributable to noncontrolling interests	$	-		$	-			-		$	-
Net income (loss) attributable to AMCOL shareholders	$	13.1		$	13.1		$	19.5		$	12.8
Basic earnings per share attributable to AMCOL shareholders (A)	$	0.42		$	0.41		$	0.61		$	0.40
Diluted earnings per share attributable to AMCOL shareholders (A)	$	0.41		$	0.41		$	0.61		$	0.40

(A) Earnings per share (EPS) for each quarter is computed using the weighted-average number of shares outstanding during the quarter, while EPS for the year is computed using the weighted-average number of shares outstanding during the year.  Thus, the sum of the EPS for each of the four quarters may not equal the EPS for the year.

Our performance materials segment recorded the following in the third quarter ended September 30, 2011:

- Reduction to cost of sales of $1.5 resulting from the recovery of certain mining costs in our chromite operations.

- Income from affiliates and joint ventures of $2.1 resulting from the sale of our Belgian joint venture.

87

SIGNATURES

Pursuant to the requirements of Section 13 of the Securities Exchange Act of 1934, the registrant has duly caused this annual report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: April 10, 2013
	AMCOL INTERNATIONAL CORPORATION
	By:	/s/ Ryan F. McKendrick
		Ryan F. McKendrick
		President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

/s/ John Hughes	April 10, 2013
John Hughes
Chairman of the Board and Director
/s/ Ryan F. McKendrick	April 10, 2013
Ryan F. McKendrick
President and Chief Executive Officer and Director
/s/ Donald W. Pearson	April 10, 2013
Donald W. Pearson
Senior Vice President and Chief Financial Officer; Treasurer and Chief Accounting Officer
/s/ Arthur Brown	April 10, 2013
Arthur Brown
Director
/s/ Daniel P. Casey	April 10, 2013
Daniel P. Casey
Director
/s/ Donald J. Gallagher	April 10, 2013
Donald J. Gallagher
Director
/s/ Frederick J. Palensky	April 10, 2013
Frederick J. Palensky
Director
/s/ Jay D. Proops	April 10, 2013
Jay D. Proops
Director
/s/ Clarence O. Redman	April 10, 2013
Clarence O. Redman
Director
/s/ William H. Schumann III	April 10, 2013
William H. Schumann III
Director
/s/ Dale E. Stahl	April 10, 2013
Dale E. Stahl
Director

/s/Audrey L. Weaver	April 10, 2013
Audrey L. Weaver
Director
/s/ Paul C. Weaver	April 10, 2013
Paul C. Weaver
Director

INDEX TO EXHIBITS

Exhibit
Number
3.1	Restated Certificate of Incorporation of the Company (1), as amended (2), as amended (3)
3.2	Bylaws of the Company as amended and restated (4), as amended (22)
4	Article Four of the Company’s Restated Certificate of Incorporation (1), as amended (3)
10.1	AMCOL International Corporation Nonqualified Deferred Compensation Plan (5)
10.2	AMCOL International Corporation 1998 Long-Term Incentive Plan (6), as amended* (7)
10.3	AMCOL International Corporation 2006 Long-Term Incentive Plan (8), as amended * (5)
10.4	AMCOL International Corporation Annual Cash Incentive Plan* (8)
10.5	AMCOL International Corporation Discretionary Cash Incentive Plan* (8)
10.6	AMCOL International Corporation Amended and Restated Supplementary Pension Plan for Employees* (5)
10.7	Employment Agreement effective as of February 2, 2009 by and between Registrant and Donald W. Pearson* (9)
10.8	Employment Agreement effective as of March 25, 2009 by and between Registrant and Gary Castagna* (9)
10.9	Employment Agreement effective as of March 25, 2009 by and between Registrant and Ryan F. McKendrick* (9)
10.10	A written description of compensation for the Board of Directors of the Company is set forth under the caption “Director Compensation” in the definitive Proxy Statement to be filed with the Securities and Exchange Commission and delivered to the Company’s shareholders in connection with the Annual Meeting of Shareholders held on May 5, 2011, and is hereby incorporated by reference.*
10.11	Form of Indemnification Agreement between the Company and its directors and executive officers (4)
10.12	Employment Agreement effective as of January 1, 2010 by and between Registrant and Michael Johnson* (15)
10.13	Form of Restricted Stock Award Agreement between Registrant and Gary Castagna and Ryan F. McKendrick* (16)
10.14	Note Purchase Agreement dated as of April 29, 2010 by and among the Registrant and the Lincoln National Life Insurance Company and the Lincoln Life and Annuity Company of New York (17)
10.15	AMCOL International Corporation 2010 Long-Term Incentive Plan* (18)
10.16	AMCOL International Corporation 2010 Cash Incentive Plan* (18)
10.17	Form of Option Award Agreement* (18)
10.18	Form of Annual Cash Award Agreement* (18)
10.19	Performance based Restricted Stock Form Award Agreement * (20)
10.20	Credit Agreement dated as of January 20, 2012, by and among AMCOL International Corporation, certain wholly-owned AMCOL subsidiaries, B.M.O. Harris Bank N.A., as administrative agent, and certain other financial institutions as lenders therein (23)
10.21	Change of Control Agreements dated March 11, 2011 by and between AMCOL International Corporation and Gary L. Castagna, Michael Johnson, Ryan F. McKendrick, and Donald W. Pearson* (21)
10.22	Change of Control Agreements dated February 28, 2012 by and between AMCOL International Corporation and Patrick E. Carpenter and James W. Ashley* (24)
10.23	2012 Performance agreement dated March 14, 2012, by and between CETCO Oilfield Services Company LLC and Michael R. Johnson * (25)
21	AMCOL International Subsidiary Listing
23.1	Consent of Independent Registered Public Accounting Firm
31.1	Certification of Chief Executive Officer Pursuant to Section 302 of the. Sarbanes-Oxley Act of 2002
31.2	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32	Certification of Periodic Financial Report Pursuant to 18 U.S.C. Section 1350
95.1	Mine Safety Disclosure
101	Interactive Data File**

(1)	Exhibit is incorporated by reference to the Registrant’s Form S-3 filed with the Securities and Exchange Commission on September 15, 1993.
(2)	Exhibit is incorporated by reference to the Registrant’s Form 10-K filed with the Securities and Exchange Commission for the year ended December 31, 1995.
(3)	Exhibit is incorporated by reference to the Registrant’s Form 10-Q filed with the Securities and Exchange Commission for the quarter ended June 30, 1998.
(4)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed the Securities and Exchange Commission on February 13, 2009.

(5)	Exhibit is incorporated by reference to the Registrant’s Form 10-K filed with the Securities and Exchange Commission for the year ended December 31, 2008.
(6)	Exhibit is incorporated by reference to the Registrant’s Form S-8 (File 333-56017) filed with the Securities and Exchange Commission on June 4, 1998.
(7)	Exhibit is incorporated by reference to the Registrant’s Form S-8 (File 333-68664) filed with the Securities and Exchange Commission on August 30, 2001.
(8)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on May 12, 2006.
(9)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on February 5, 2009.
(10)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on November 15, 2005.
(11)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on June 19, 2006.
(12)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on March 13, 2007.
(13)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed the Securities and Exchange Commission on May 23, 2008.
(14)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on September 23, 2009.
(15)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on January 5, 2010.
(16)	Exhibit is incorporated by reference to the Registrant’s Form 10-K filed with the Securities and Exchange Commission for the year ended December 31, 2009.
(17)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on April 30, 2010.
(18)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on May 7, 2010.
(19)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on November 22, 2010.
(20)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on February 14, 2011.
(21)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on March 16, 2011.
(22)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on November 17, 2011.
(23)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on January 23, 2012.
(24)	Exhibit is incorporated by reference to the Registrant’s Form 8-K filed with the Securities and Exchange Commission on March 23, 2012.
(25)	Exhibit is incorporated by reference to the Registrant’s Form 10-Q filed with the Securities and Exchange Commission on May10, 2012.

*Management compensatory plan or arrangement

** As provided in Rule 406T of Regulation S-T, this information is deemed not filed or part of a registration statement or prospectus for purposes of Section 11 or 12 of the Securities Act of 1933, and is deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, and is not otherwise subject to liability under these sections.

EX-21

Exhibit 21

AMCOL INTERNATIONAL CORPORATION

SUBSIDIARY LISTING

COMPANY NAME	COUNTRY	STATE	OWNERSHIP %
ADAE SKA	Poland		100
AMCOL Australia Pty Ltd	Australia		100
AMCOLL de Mexico, S.A. de C.V.	Mexico		100
AMCOL DongMing Industrial Minerals Co., Ltd.	China		100
AMCOL Health & Beauty Solutions, Inc.	USA	DE	100
AMCOL (Holdings) Ltd.	England		100
AMCOL International B.V.	Netherlands		100
AMCOL International Holdings Corporation	USA	DE	100
AMCOL International (Thailand) Ltd.	Thailand		100
AMCOL Korea Ltd.	Korea		100
AMCOL Mauritius	Mauritius		100
AMCOL MinChem  (Jianping) Co. Ltd.	China		100
AMCOL Minerals and Materials (India) Pvt Ltd.	India		100
AMCOL Minerals and Materials Singapore Pte. Ltd.	Singapore		100
AMCOL Minerals Eu Limited	England		100
AMCOL Minerals Europe Limited	England		100
AMCOL Minerals Madencilik San Ve Tic A.S.	Turkey		100
AMCOL SKA	Poland		100
American Colloid Company	USA	DE	100
Ameri-Co Carriers, Inc.	USA	NE	100
Ameri-Co Logistics, Inc.	USA	NE	100
Bonmerci Investments 103 (Pty)	South Africa		100
Batlhako Mining Ltd	South Africa		74
CETCO Czech	Czech Republic		100
CETCO do Brazil Servicios de Construcao Ltda	Brazil		100
CETCO do Brasil Services Productos e de Meio-Abiente Ltd.	Brazil		100
CETCO Europe Limited	England		100
CETCO France	France		100
CETCO Germany	Germany		100
CETCO Holdings B.V.	Netherlands		100
CETCO Iberia Construcciones y Servicios	Spain		100
CETCO Iberia S.L.	Spain		100
CETCO Korea Ltd.	Korea		100
CETCO Lining Technologies India Pvt. Ltd.	India		80
CETCO Oilfield Services Company Limited	Canada	Ontario	100
CETCO Oilfield Services Limited	UK		100
CETCO Oilfield Services Pty. Ltd.	Australia		100
CETCO Oilfield Services Asia Ltd.	Malaysia		100
CETCO Oilfield Services Company LLC	USA	DE	100
CETCO Oilfield Services Nigeria Limited	Nigeria		100
CETCO-POLAND Sp. z o.o	Poland		100
CETCO Poland SKA	Poland		100
CETCO Technologies (Suzhou) Co. Ltd.	China		100
Colloid Environmental Technologies Company LLC	USA	DE	100
CVE CETCO Latino America Limitada	Chile		100
Ingeniería y Construcción Cetco Limitada	Chile		99.9
Montana Minerals Development Company	USA	MT	100
Nanocor, LLC	USA	DE	100

Continued…

COMPANY NAME	COUNTRY	STATE	OWNERSHIP %
Poland Fundsz Inwestycyjny Zamkniety	Poland		100
Pt. CETCO Oilfield Services Indonesia	Indonesia		100
Volclay International LLC	USA	DE	100
AMCOL (Tianjin) Industrial Minerals Co., Ltd.	China		100
Volclay South Africa (Proprietary) Limited	South Africa		100
Volclay Trading (Proprietary) Limited	South Africa		100
AMCOL Tianyu	China		95

EX-23.1

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

(1)  Registration Statement (Form S-8 No. 333-166613) pertaining to the AMCOL International Corporation 2010 Long-Term Incentive Plan,

(2)  Registration Statement (Form S-3 No. 333-161802) of AMCOL International Corporation and in the related Prospectus,

(3)  Registration Statement (Form S-8 No. 333-135491) pertaining to the AMCOL International Corporation 2006 Long-Term Incentive Plan,

(4)  Registration Statements (Form S-8 No. 333-110500, No. 333-68664, and No. 333-56017) pertaining to the AMCOL International Corporation 1998 Long-Term Incentive Plan,

(5)  Registration Statement (Form S-8 No. 333-00581) pertaining to the AMCOL International Corporation 1993 Stock Plan,

(6)  Registration Statement (Form S-8 No. 33-73348) pertaining to the AMCOL International Corporation 1987 Non-Qualified Stock Option Plan,

(7)  Registration Statement (Form S-8 No. 33-55540) pertaining to the AMCOL International Corporation Savings Plan,

of our reports dated April 10, 2013, with respect to the consolidated financial statements of AMCOL International Corporation and Subsidiaries, and the effectiveness of internal control over financial reporting of AMCOL International Corporation and Subsidiaries, included in this Annual Report (Form 10-K) for the year ended December 31, 2012.

/s/ Ernst & Young LLP

Chicago, Illinois

April 10, 2013

EX-31.1

Exhibit 31.1

Certification of Chief Executive Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Ryan F. McKendrick, certify that:

1.  I have reviewed this annual report on Form 10-K of AMCOL International Corporation;

2.  Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.  Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.  The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)  Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)  Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)  Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.  The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a)  All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b)  Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  April 10, 2013	/s/ Ryan F. McKendrick
	Ryan F. McKendrick
	Chief Executive Officer

EX-31.2

Exhibit 31.2

Certification of Chief Financial Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Donald W. Pearson, certify that:

1.  I have reviewed this annual report on Form 10-K of AMCOL International Corporation;

2.  Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.  Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.  The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)  Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)  Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)  Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.  The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a)  All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b)  Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  April 10, 2013	/s/ Donald W. Pearson
	Donald W. Pearson
	Chief Financial Officer

EX-32.1

 Exhibit 32

Certification of Periodic Financial Report

Pursuant to 18 U.S.C. Section 1350

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, each of the undersigned officers of AMCOL International Corporation (the “Company”) certifies that the annual report on Form 10-K of the Company for the year ended December 31, 2012 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:  April 10, 2013	/s/ Ryan F. McKendrick
	Ryan F. McKendrick Chief Executive Officer
Date:  April 10, 2013	/s/ Donald W. Pearson
	Donald W. Pearson Chief Financial Officer

EX-95

 Exhibit 95.1

Mine Safety Disclosures

We have in place health and safety programs that include extensive employee training, accident prevention, workplace inspection, emergency response, accident investigation, regulatory compliance and program auditing.  The objectives of our health and safety programs are to eliminate workplace incidents, comply with all mining-related regulations and improve mine safety.

The operation of our domestic mines is subject to regulation by the federal Mine Safety and Health Administration ("MSHA") under the Federal Mine Safety and Health Act of 1977 (the "Mine Act").  MSHA inspects our mines on a regular basis and issues various citations and orders when it believes a violation has occurred under the Mine Act.  As required by the reporting requirements included in section 1503(a) of the Dodd-Frank Act, we present the following information regarding mining safety and health matters, with respect to our mining operations.

For the three-month period ended December 31, 2012, none of our mining operations received written notice from MSHA of (i) a citation for violation of mandatory health or safety standards that could significantly contribute to the cause and effect of our mines safety or health hazard under section 104 of the Mine Act (ii) an order issued under section 104(b) of the Mine Act; (iii) a citation or order for unwarrantable failure to comply with mandatory health or safety standards under section 104 (d) of the Mine Act; (iv) a flagrant violation under section 110(b)(2) of the Mine Act; (v) an imminent danger order under section 107(a) of the Mine Act; (vi) a pattern of violations of mandatory health or safety standards that are of such nature as could have significantly and substantially contributed to the cause and effect of our mine health or safety hazards under section 104(e) of the Mine Act; or (vii) the potential to have such a pattern.  For the three-month period ended December 31, 2012, we experienced no fatalities.

For the twelve-month period ended December 31, 2012, none of our mining operations received written notice from MSHA of (i) an order issued under section 104(b) of the Mine Act; (ii) a flagrant violation under section 110(b)(2) of the Mine Act; (iii) an imminent danger order under section 107(a) of the Mine Act; (iv) a pattern of violations of mandatory health or safety standards that are of such nature as could have significantly and substantially contributed to the cause and effect of our mine health or safety hazards under section 104(e) of the Mine Act; or (v) the potential to have such a pattern.  For the twelve-month period ended December 31, 2012, we experienced no fatalities.

The table below sets forth by mining complex the total number of citations and/or orders issued during the twelve-month period ended December 31, 2012 by MSHA to AMCOL and its subsidiaries under the indicated provisions of the Mine Act, together with the total dollar value of proposed MSHA assessments.

Mine	Section 104  (1)		Section 104 (d)  (2)		Proposed MSHA Assessments (3)		Legal Actions Pending as of Last Day of Period			Legal Actions Instituted During Period		Legal Actions Resolved During Period
(Amounts are actual, not thousands)
Gascoyne Mine & Mill		1		-	$	700		-			-		2
Belle Fourche Mill		-		-		400		-			-		5
Lovell Mill		3		-		2,160		2	(4)		2		2
Colony West Mill		2		-		1,653		3	(5)		-		-
Colony East Mill		3		-		6,395		6	(6)		1		3
Yellowtail Mine		-		-		-		-			-		-
Belle/Colony Mine		3		-		1,219		1	(7)		1		1
Sandy Ridge Mill		-		-		1,108		1	(8)		1		3

1. Total number of violations of mandatory health or safety standards that could significantly and substantially contribute to the cause and effect of a mine safety or health hazard under section 104 of the Mine Act for which AMCOL and its subsidiaries received a citation from MSHA.

2.  Total number of citations and orders for unwarrantable failure of the mine operator to comply with mandatory health or safety standards under section 104(d) of the Mine Act issued to AMCOL and its subsidiaries.

3.  Total dollar amount of proposed assessments received from MSHA on or before December 31, 2012, for citations and orders occurring during the twelve-month period then ended.

4.  This number consists of 2 pending legal actions related to contests of proposed penalties referenced in Subpart C of the Mine Act.

5.  This number consists of 3 pending legal actions related to contests of proposed penalties referenced in Subpart C of the Mine Act.

6.  This number consists of 6 pending legal actions related to contests of proposed penalties referenced in Subpart C of the Mine Act.

7.  This number consists of 1 pending legal actions related to contests of proposed penalties referenced in Subpart C of the Mine Act.

8.  This number consists of 1 pending legal actions related to contests of proposed penalties referenced in Subpart C of the Mine Act.

In evaluating this information, consideration should be given to factors such as: (i) the number of citations and orders will vary depending on the size of the mine, (ii) the number of citations issued will vary from inspector to inspector and mine to mine, and (iii) citations and orders can be contested and appealed, and in that process, are often reduced in severity and amount, and are sometimes dismissed.

XML

Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2012

Employee Benefit Plans [Abstract]

Pension obligations and funded status

The following tables set forth our pension obligations and funded status at December 31:

	Pension Benefits
	Defined Benefit Pension Plan						Supplementary Pension Plan
	2012			2011			2012			2011
Change in benefit obligations:
Beginning projected benefit obligation	$	58.1		$	48.0		$	11.6		$	9.2
Service cost		1.7			1.5			0.3			0.2
Interest cost		2.7			2.6			0.5			0.5
Actuarial (gain)/loss		2.6			7.2			1.2			2.0
Benefits paid		(1.3	)		(1.2	)		(0.4	)		(0.3	)
Ending projected benefit obligation		63.8			58.1			13.2			11.6
Change in plan assets:
Beginning fair value		34.5			35.8			-			-
Actual return		4.3			(1.5	)					-
Company contribution		1.7			1.5			0.4			0.4
Benefits paid		(1.4	)		(1.3	)		(0.4	)		(0.4	)
Ending fair value		39.1			34.5			-			-
Funded status of the plan		(24.7	)		(23.6	)		(13.2	)		(11.6	)

Summary of net periodic pension cost

Pension cost in each of the following years was comprised of:

	Defined Benefit Pension Plan									Supplementary Pension Plan
	2012			2011			2010			2012		2011		2010
Service cost – benefits earned during the year	$	1.7		$	1.5		$	1.4		$	0.3	$	0.2	$	0.3
Interest cost on accumulated benefit obligation		2.7			2.6			2.4			0.5		0.5		0.5
Expected return on plan assets		(2.6	)		(2.9	)		(2.6	)		-		-		-
Net amortization and deferral		1.0			0.1			0.1			0.2		0.1		0.1
Net periodic pension cost		2.8			1.3			1.3			1.0		0.8		0.9

Assumptions used to determine pension obligations

The following table summarizes the assumptions used in determining our pension obligations at the end of each of our last two years:

	Defined Benefit Pension Plan						Supplementary Pension Plan
	2012			2011			2012			2011
Discount rate		4.17	%		4.70	%		4.00	%		4.63	%
Rate of compensation increase		3.00	%		4.00	%		3.00	%		4.00	%
Long-term rate of return on plan assets		7.50	%		7.50	%		N/A			N/A

Assumptions used to determine net periodic benefit cost

The following table summarizes the assumptions used in determining our net periodic benefit cost in the years ended December 31:

	Defined Benefit Pension Plan									Supplementary Pension Plan
	2012			2011			2010			2012			2011			2010
Discount rate		4.70	%		5.51	%		5.91	%		4.63	%		5.36	%		5.95	%
Rate of compensation increase		4.00	%		4.00	%		4.00	%		4.00	%		4.00	%		4.00	%
Long-term rate of return on plan assets		7.50	%		8.00	%		8.25	%		N/A			N/A			N/A

Expected payment of future benefits

The estimated future benefit payments contemplated under these plans, reflecting expected future service, as appropriate, are presented in the following table:

	Defined Benefit Pension Plan		Supplementary Pension Plan
2013	$	1.8	$	0.4
2014		2.1		0.4
2015		2.3		0.4
2016		2.5		0.5
2017		2.8		0.7
2018 through 2022		17.5		4.0

Amounts recognized in other comprehensive income and prior service cost

Note 3 shows the amounts included within accumulated other comprehensive income as of December 31, 2012 and 2011 that have not yet been recognized as components of net periodic benefit cost. Of these balances at December 31, 2012, the amounts expected to be amortized in the next fiscal year are $0.1 and $1.2 for the unrecognized prior service cost and unrecognized net actuarial loss, respectively. Excluding the effect of income taxes, the amounts recognized within other comprehensive income and the prior service cost for 2012 and 2011, are as follows:

	2012			2011
Recognized in Other Comprehensive Income:
Net actuarial loss (gain)	$	2.1		$	13.7
Amortization of net actuarial loss (gain)		(1.1	)		(0.1	)
Amortization of prior service cost (credit)		(0.1	)		(0.1	)
Total change in other comprehensive income		0.9			13.5

Fair value of pension plan assets

Fair values of our defined benefit pension plan assets at December 31, by asset category, are as follows:

	Fair Value Measurements as of December 31, 2012
			Quoted Prices in Active Markets for Identical Assets		Significant Observable Inputs		Significant Unobservable Inputs
	Total		Level 1		Level 2		Level 3
Short term investment funds	$	0.6	$	-	$	0.6	$	-
Equity securities:
US equity securities		14.0		1.4		12.6		-
International equity securities		9.5		4.5		5.0		-
AMCOL International common stock		2.1		2.1		-		-
Fixed income securities and bonds
Governmental agencies		0.7		-		0.7		-
Corporate bonds		5.4		5.4		-		-
Guaranteed investment contracts		1.3		-		1.3		-
Other investments
Real estate index funds		0.8		-		0.8		-
Commodities linked funds		0.7		0.7		-		-
Hedge funds		4.0		-		-		4.0
Total		39.1		14.1		21.0		4.0

	Fair Value Measurements as of December 31, 2011
			Quoted Prices in Active Markets for Identical Assets		Significant Observable Inputs		Significant Unobservable Inputs
	Total		Level 1		Level 2		Level 3
Short term investment funds	$	0.7	$	-	$	0.7	$	-
Equity securities:
US equity securities		11.2		-		11.2		-
International equity securities		6.0		2.0		4.0		-
AMCOL International common stock		1.9		1.9		-		-
Fixed income securities and bonds
Governmental agencies		1.0		1.0		-		-
Corporate bonds		5.0		5.0		-		-
Guaranteed investment contracts		2.5		-		2.5		-
Other investments
Real estate index funds		0.6		-		0.6		-
Commodities linked funds		1.7		1.7		-		-
Hedge funds		3.9		-		-		3.9
Total		34.5		11.6		19.0		3.9

Reconciliation of changes in fair value measurements of plan assets

The following is a reconciliation of changes in fair value measurements of plan assets using significant unobservable inputs (Level 3):

	Hedge Funds
Beginning balance at December 31, 2010	$	2.2
Purchases, sales, and settlements		1.8
Actual return on plan assets still held at reporting date		(0.1	)
Ending balance at December 31, 2011		3.9
Purchases, sales, and settlements		-
Actual return on plan assets still held at reporting date		0.1
Ending balance at December 31, 2012		4.0

XML

Balance Sheet Related Information (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Balance Sheet Related Information (Textual) [Abstract]
Pension adjustments, net of tax	$ 0.1	$ 0.1
Tax benefit on actuarial loss on pension plans	7.8	6.9
Tax benefit on unrealized loss on interest rate swap agreement	3.3	3.3
Tax benefit (expense) on unrealized gain on available-for-sale securities	$ 1.2	$ 0

XML

Balance Sheet Related Information (Details) (Allowance for Doubtful Accounts [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Allowance for Doubtful Accounts [Member]
Allowance for doubtful accounts
Balance at the beginning of the year	$ 7.5	$ 6.6	$ 6.3
Charged to expense (income)	5.3	3.6	2.4
Write-offs and currency translation adjustments	(1.8)	(2.7)	(2.1)
Balance at the end of the year	$ 11.0	$ 7.5	$ 6.6

XML

Income Taxes (Details Textual) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes (Textual) [Abstract]
Undistributed earnings from international subsidiaries	$ 138.9	$ 113.6
Tax holidays resulted in reductions to Income tax expense	0.2	0.1	0.5
Diluted earnings per share (in dollars per share)	$ 0.01	$ 0.00	$ 0.01
Taxable percentage of initial manufacturing activities (in hundredths)	50.00%
Percentage of income generated from tax holiday (in hundredths)	100.00%
Granted period to generate income from corporate income tax	8 years
Additional taxable percentage of initial manufacturing activities (in hundredths)	50.00%
Additional granted period to generate income from corporate income tax	5 years
Income tax credits	0.9
Income tax carryforward period	10 years
Foreign and state net operating loss carryovers	$ 0.6

XML

Property, Plant, Equipment and Mineral Rights and Reserves (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property plant equipment and mineral rights and reserves
Mineral rights and reserves	$ 48.6	$ 52.5
Land	13.0	12.1
Buildings and improvements	104.9	97.5
Machinery and equipment	414.5	362.0
Construction in progress	32.6	25.2
Gross property, plant and equipment	$ 613.6	$ 549.3

XML

Fair Value Measurements (Details) (Fair Value Measurements Recurring [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Interest rate swaps [Member]
Summary of fair value instruments
Interest rate swaps	$ (8.4)	$ (9.0)
Interest rate swaps [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Summary of fair value instruments
Interest rate swaps	0	0
Interest rate swaps [Member] | Significant Other Observable Inputs (Level 2) [Member]
Summary of fair value instruments
Interest rate swaps	(8.4)	(9.0)
Interest rate swaps [Member] | Significant Unobservable Inputs (Level 3) [Member]
Summary of fair value instruments
Interest rate swaps	0	0
Available-for-sale securities [Member]
Summary of fair value instruments
Available-for-sale securities	14.6	3.8
Available-for-sale securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Summary of fair value instruments
Available-for-sale securities	14.6	3.8
Available-for-sale securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Summary of fair value instruments
Available-for-sale securities	0	0
Available-for-sale securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Summary of fair value instruments
Available-for-sale securities	0	0
Deferred compensation plan assets [Member]
Summary of fair value instruments
Other assets, fair value disclosure	9.4	8.0
Deferred compensation plan assets [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Summary of fair value instruments
Other assets, fair value disclosure	0	0
Deferred compensation plan assets [Member] | Significant Other Observable Inputs (Level 2) [Member]
Summary of fair value instruments
Other assets, fair value disclosure	9.4	8.0
Deferred compensation plan assets [Member] | Significant Unobservable Inputs (Level 3) [Member]
Summary of fair value instruments
Other assets, fair value disclosure	0	0
Supplementary pension plan assets [Member]
Summary of fair value instruments
Other assets, fair value disclosure	8.2	7.6
Supplementary pension plan assets [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Summary of fair value instruments
Other assets, fair value disclosure	0	0
Supplementary pension plan assets [Member] | Significant Other Observable Inputs (Level 2) [Member]
Summary of fair value instruments
Other assets, fair value disclosure	8.2	7.6
Supplementary pension plan assets [Member] | Significant Unobservable Inputs (Level 3) [Member]
Summary of fair value instruments
Other assets, fair value disclosure	$ 0	$ 0

XML

Segment Geographic and Market Information (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Geographic information
Sales to unaffiliated customers shipped	$ 239.2	$ 253.5	$ 257.5	$ 235.4	$ 234.1	$ 247.9	$ 243.2	$ 218.6	$ 985.6	$ 943.8	$ 826.3
Operating profit from sales	17.5	28.1	31.1	21.4	20.4	25.8	20.9	19.0	98.1	86.1	69.0
Account receivable	202.7				204.4				202.7	204.4	189.8
Property, plant, equipment, and mineral rights and reserves	301.9				273.5				301.9	273.5	271.7
Identifiable assets	910.6				849.1				910.6	849.1	807.3
Americas [Member]
Geographic information
Sales to unaffiliated customers shipped									630.7	590.0	516.9
Operating profit from sales									65.5	57.5	45.8
Account receivable	109.9				112.3				109.9	112.3	106.0
Property, plant, equipment, and mineral rights and reserves	134.8				116.0				134.8	116.0	107.7
Identifiable assets	448.3				420.4				448.3	420.4	428.7
EMEA [Member]
Geographic information
Sales to unaffiliated customers shipped									191.6	220.1	185.6
Operating profit from sales									10.4	10.3	5.6
Account receivable	45.3				51.9				45.3	51.9	46.5
Property, plant, equipment, and mineral rights and reserves	112.3				108.7				112.3	108.7	114.3
Identifiable assets	303.3				289.4				303.3	289.4	265.5
Asia Pacific [Member]
Geographic information
Sales to unaffiliated customers shipped									163.3	133.7	123.8
Operating profit from sales									22.2	18.3	17.6
Account receivable	47.5				40.2				47.5	40.2	37.3
Property, plant, equipment, and mineral rights and reserves	54.8				48.8				54.8	48.8	49.7
Identifiable assets	$ 159.0				$ 139.3				$ 159.0	$ 139.3	$ 113.1

XML

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Taxes [Abstract]

Income tax expense (benefit)

Total income tax expense (benefit) for the years ended December 31 was comprised of the following:

	2012		2011			2010
Continuing operations	$	23.3	$	20.8		$	20.3
Discontinued operations				(0.6	)		(0.7	)
		23.3		20.2			19.6

Income from continuing operations before income taxes and income (loss) from affiliates and joint ventures

Income from continuing operations before income taxes and income (loss) from affiliates and joint ventures was comprised of the following:

	2012		2011		2010
Income from continuing operations before income taxes and income (loss)from affiliates and joint ventures:
Domestic	$	56.4	$	53.8	$	43.6
Foreign		27.9		21.5		17.1
		84.3		75.3		60.7

Components of provision for income taxes

The components of the provision for income taxes attributable to income from continuing operations before income taxes and income (loss) from affiliates and joint ventures for the years ended December 31 consisted of:

	2012			2011			2010
Provision (benefit) for income taxes:
Federal:
Current	$	14.0		$	5.2		$	7.4
Deferred		0.8			6.4			2.1
State:
Current		2.8			2.9			2.4
Deferred		(1.9	)		0.4			-
Foreign:
Current		8.4			8.0			7.4
Deferred		(0.8	)		(2.1	)		1.0
		23.3			20.8			20.3

Significant portions of the deferred tax assets and liabilities

The tax effects of temporary differences that gave rise to significant portions of the deferred tax assets and liabilities as of December 31 were as follows:

	2012			2011
Deferred tax assets attributable to:
Accounts receivable	$	2.1		$	1.1
Inventories		2.7			1.7
Employee benefit plans		28.3			25.6
Accrued liabilities		0.6			0.5
Employee incentive plans		2.4			1.3
Tax credit carryforwards		6.9			7.2
Available-for-sale securities		-			2.8
Other		0.3			0.8
Total deferred tax assets		43.3			41.0
Deferred tax liabilities attributable to:
Plant and equipment		(17.7	)		(17.6	)
Land and mineral reserves		(12.7	)		(13.5	)
Joint ventures		(2.0	)		(1.8	)
Intangible assets		(2.7	)		(1.7	)
Available-for-sale securities		(1.2	)		-
Other		(0.8	)		(0.5	)
Total deferred tax liabilities		(37.1	)		(35.1	)
Valuation allowances		(5.1	)		(6.8	)
Net deferred tax asset (liability)		1.1			(0.9	)

Effective income tax rate reconciliation

The following analysis reconciles the U.S. statutory federal income tax rate to the effective tax rates related to income from continuing operations before income taxes and equity income (loss) of affiliates and joint ventures:

	2012						2011						2010
	Amount			Percent of Pretax Income			Amount			Percent of Pretax Income			Amount			Percent of Pretax Income
Provision for income taxes at
U.S. statutory rates	$	29.5			35.0	%	$	26.3			35.0	%	$	21.2			35.0	%
Increase (decrease) in taxes resulting from:
Percentage depletion		(5.0	)		-6.0	%		(4.9	)		-6.5	%		(3.9	)		-6.4	%
State taxes, net of federal benefit		1.7			2.1	%		2.2			2.9	%		1.5			2.6	%
Foreign tax rates		(3.9	)		-4.6	%		(1.0	)		-1.4	%		(0.9	)		-1.5	%
Change in reserve for tax uncertainties		-			0.0	%		(0.7	)		-0.9	%		0.1			0.1	%
Domestic manufacturing deduction		(1.6	)		-1.9	%		(0.8	)		-1.1	%		(0.5	)		-0.8	%
Change in state tax rates		(1.9	)		-2.2	%		-			0.0	%		(0.1	)		-0.2	%
Foreign witholding tax		1.6			2.0	%		1.0			1.3	%		0.6			1.0	%
Foreign tax credits		(3.2	)		-3.8	%		(2.4	)		-3.1	%		(2.2	)		-3.6	%
Changes to valuation allowance		1.9			2.2	%		(0.2	)		-0.3	%		3.4			5.6	%
Tax from foreign disregarded entities		0.4			0.5	%		0.3			0.3	%		1.4			2.2	%
Other		3.8			4.3	%		1.0			1.4	%		(0.3	)		-0.6	%
		23.3			27.6	%		20.8			27.6	%		20.3			33.4	%

Activity related to unrecognized tax benefits

The following table summarizes the activity related to our unrecognized tax benefits:

	2012		2011			2010
Balance at beginning of the year	$	-	$	0.8		$	0.7
Increases related to prior year tax positions							0.1
Increases related to current year tax positions
Decreases related to the expiration of statue of limitation / settlement of audits				(0.8	)
Balance at the end of the year		-		-			0.8

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Noncontrolling Interest (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Equity attributable to AMCOL's shareholders
Net income attributable to AMCOL shareholders	$ 11.0	$ 19.0	$ 21.7	$ 13.4	$ 12.8	$ 19.5	$ 13.1	$ 13.1	$ 65.1	$ 58.5	$ 29.2
Transfers from noncontrolling interest:
Decrease in additional paid-in capital for purchase of the remaining noncontrolling interest in South Africa (Proprietary) Limited										(5.7)	2.7
Decrease in additional paid-in capital for transfer of 26% interest in Batlhako										0
AMCOL Shareholders [Member]
Equity attributable to AMCOL's shareholders
Net income attributable to AMCOL shareholders									65.1	58.5
Transfers from noncontrolling interest:
Decrease in additional paid-in capital for purchase of the remaining noncontrolling interest in South Africa (Proprietary) Limited									0	(5.4)
Decrease in additional paid-in capital for transfer of 26% interest in Batlhako									0	(3.4)
Change from net income attributable to AMCOL shareholders and transfers from noncontrolling interest									$ 65.1	$ 49.7

XML

Long-Term Debt (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended					12 Months Ended		1 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Jan. 31, 2012	Apr. 29, 2010	Dec. 31, 2012 Tranche 1 [Member]	Dec. 31, 2012 Tranche 2 [Member]	Dec. 31, 2011 Tranche 2 [Member]	Jan. 31, 2012 Minimum [Member]	Jan. 31, 2012 Maximum [Member]	Dec. 31, 2012 Short-term Debt [Member]
Debt Instrument [Line Items]
Line of credit facility basis spread on variable rate (in hundredths)								1.00%	1.75%
Debt instrument basis spread on variable rate (in hundredths)						0.55%
Debt instrument interest rate effective percentage (in hundredths)					5.78%	5.60%	5.60%
Repayments of notes payable						$ 30
Revolving line of facility credit maturing										8.5
Credit facility maximum borrowing capacity			400							15
Short term debt weighted average interest rate (in hundredths)										2.00%
Debt bearing fixed interest rate (in hundredths)	65.00%
Average fixed interest rate (in hundredths)	5.12%
Debt instrument face amount				50	45
Interest swap rate outstanding	33	33				30	30
Long Term Debt (Textual) [Abstract]
Interest rate on revolving credit facility (in hundredths)	3.30%	3.30%		5.46%
Average interest rate on revolving credit facility (in hundredths)	2.95%
Senior notes face amount	75
Senior notes maturities repayment date	Apr. 02, 2017
Line of credit facility variable rate basis	LIBOR
Short-term credit facility maturity date	Nov. 15, 2013
Letters of credit outstanding amount	4.2	3.7
Line of credit facility current borrowing capacity			300
Credit facility remaining borrowing capacity	$ 185.4

XML

Employee Benefit Plans (Details 6) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Hedge Funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	$ 4.0	$ 3.9	$ 2.2
Fair Value Measurements Recurring [Member]
Fair value of pension plan assets
Fair value of pension plan assets	39.1	34.5
Fair Value Measurements Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	14.1	11.6
Fair Value Measurements Recurring [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	21.0	19.0
Fair Value Measurements Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	4.0	3.9
Fair Value Measurements Recurring [Member] | Short Term Investment Funds [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0.6	0.7
Fair Value Measurements Recurring [Member] | Short Term Investment Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Short Term Investment Funds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0.6	0.7
Fair Value Measurements Recurring [Member] | Short Term Investment Funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | US Equity Securities [Member]
Fair value of pension plan assets
Fair value of pension plan assets	14.0	11.2
Fair Value Measurements Recurring [Member] | US Equity Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	1.4	0
Fair Value Measurements Recurring [Member] | US Equity Securities [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	12.6	11.2
Fair Value Measurements Recurring [Member] | US Equity Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | International Equity Securities [Member]
Fair value of pension plan assets
Fair value of pension plan assets	9.5	6.0
Fair Value Measurements Recurring [Member] | International Equity Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	4.5	2.0
Fair Value Measurements Recurring [Member] | International Equity Securities [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	5.0	4.0
Fair Value Measurements Recurring [Member] | International Equity Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | AMCOL International Common Stock [Member]
Fair value of pension plan assets
Fair value of pension plan assets	2.1	1.9
Fair Value Measurements Recurring [Member] | AMCOL International Common Stock [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	2.1	1.9
Fair Value Measurements Recurring [Member] | AMCOL International Common Stock [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | AMCOL International Common Stock [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Governmental Agencies [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0.7	1.0
Fair Value Measurements Recurring [Member] | Governmental Agencies [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	1.0
Fair Value Measurements Recurring [Member] | Governmental Agencies [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0.7	0
Fair Value Measurements Recurring [Member] | Governmental Agencies [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Corporate Bonds [Member]
Fair value of pension plan assets
Fair value of pension plan assets	5.4	5.0
Fair Value Measurements Recurring [Member] | Corporate Bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	5.4	5.0
Fair Value Measurements Recurring [Member] | Corporate Bonds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Corporate Bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Guaranteed Investment Contracts [Member]
Fair value of pension plan assets
Fair value of pension plan assets	1.3	2.5
Fair Value Measurements Recurring [Member] | Guaranteed Investment Contracts [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Guaranteed Investment Contracts [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	1.3	2.5
Fair Value Measurements Recurring [Member] | Guaranteed Investment Contracts [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Real Estate Index Funds [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0.8	0.6
Fair Value Measurements Recurring [Member] | Real Estate Index Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Real Estate Index Funds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0.8	0.6
Fair Value Measurements Recurring [Member] | Real Estate Index Funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Commodities Linked Funds [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0.7	1.7
Fair Value Measurements Recurring [Member] | Commodities Linked Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0.7	1.7
Fair Value Measurements Recurring [Member] | Commodities Linked Funds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Commodities Linked Funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Hedge Funds [Member]
Fair value of pension plan assets
Fair value of pension plan assets	4.0	3.9
Fair Value Measurements Recurring [Member] | Hedge Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Hedge Funds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	0	0
Fair Value Measurements Recurring [Member] | Hedge Funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets
Fair value of pension plan assets	$ 4.0	$ 3.9

XML

Property Plant Equipment and Mineral Rights and Reserves (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Depreciation and depletion charged to income
Depreciation expense	$ 39.3	$ 35.0	$ 30.1
Depletion expense	1.6	2.6	1.2
Depreciation and depletion	$ 40.9	$ 37.6	$ 31.3

XML

Derivative Instruments and Hedging Activities (Details 2) (Foreign Exchange Derivative Instruments [Member], Derivatives Not Designated as Hedging Instruments [Member], Other, Net [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Foreign Exchange Derivative Instruments [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other, Net [Member]
Changes in fair value of foreign exchange contracts
Amount of Gain or (Loss) Recognized in Income on Derivatives	$ (0.4)	$ (0.5)	$ (0.8)

XML

Employee Benefit Plans (Details 3)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Pension Plan [Member]
Assumptions used to determine net periodic benefit cost
Discount rate (in hundredths)	4.70%	5.51%	5.91%
Rate of compensation increase (in hundredths)	4.00%	4.00%	4.00%
Long-term rate of return on plan assets (in hundredths)	7.50%	8.00%	8.25%
Supplementary Pension Plan [Member]
Assumptions used to determine net periodic benefit cost
Discount rate (in hundredths)	4.63%	5.36%	5.95%
Rate of compensation increase (in hundredths)	4.00%	4.00%	4.00%

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Leases (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012
Summary of future minimum lease payments for operating leases
2013	$ 20.0
2014	16.3
2015	12.6
2016	9.1
2017	6.5
Thereafter	46.5
Total	111.0
Foreign [Member]
Summary of future minimum lease payments for operating leases
2013	2.6
2014	1.9
2015	1.1
2016	0.7
2017	0.5
Thereafter	1.1
Total	7.9
Domestic [Member]
Summary of future minimum lease payments for operating leases
2013	17.4
2014	14.4
2015	11.5
2016	8.4
2017	6.0
Thereafter	45.4
Total	$ 103.1

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Employee Benefit Plans (Details 4) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012
Defined Benefit Pension Plan [Member]
Expected payment of future benefits
2013	$ 1.8
2014	2.1
2015	2.3
2016	2.5
2017	2.8
2018 through 2022	17.5
Supplementary Pension Plan [Member]
Expected payment of future benefits
2013	0.4
2014	0.4
2015	0.4
2016	0.5
2017	0.7
2018 through 2022	$ 4.0

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Derivative Instruments and Hedging Activities (Details Textual) (Interest rate swaps [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Senior Notes [Member]
Derivative Instruments and Hedging Activities (Textual) [Abstract]
Debt instrument outstanding	$ 30	$ 30
Interest Rate (in hundredths)	5.60%	5.60%
Borrowings [Member]
Derivative Instruments and Hedging Activities (Textual) [Abstract]
Debt instrument outstanding	$ 33	$ 33
Interest Rate (in hundredths)	3.30%	3.30%

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Long-term Debt (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Amounts of long-term debt
Borrowings under revolving credit agreement	$ 114.6	$ 120.9
Senior notes	125.0	125.0
Other notes payable	10.2	15.5
Total long term debt	249.8	261.4
Less: current portion	(1.0)	(0.7)
Long-term debt, excluding current maturities	$ 248.8	$ 260.7

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Quarterly Results (Unaudited)

12 Months Ended

Dec. 31, 2012

Quarterly Results (Unaudited) [Abstract]

Quarterly Results (Unaudited)

(17)        Quarterly Results (Unaudited)

Unaudited summarized results for each quarter of the last two years are as follows:

	2012 Quarters
	First			Second			Third			Fourth
Performance materials	$	125.2		$	131.1		$	121.0		$	114.6
Construction technologies		50.9			61.4			60.6			50.2
Energy services		55.3			61.1			69.1			71.8
Transportation		11.1			11.7			10.7			10.5
Intersegment sales		(7.1	)		(7.8	)		(7.9	)		(7.9	)
Net sales		235.4			257.5			253.5			239.2
Performance materials	$	33.4		$	35.6		$	31.2		$	26.7
Construction technologies		14.6			18.7			20.1			15.1
Energy services		15.4			19.2			17.7			18.8
Transportation		1.2			1.2			1.1			1.1
Intersegment gross profit		0.1			-			(0.3	)		0.2
Gross profit		64.7			74.7			69.8			61.9
Performance materials	$	21.5		$	22.5		$	18.0		$	14.3
Construction technologies		0.9			6.3			7.0			1.4
Energy services		4.8			7.7			7.9			8.3
Transportation		0.2			0.3			0.2			0.1
Corporate		(6.0	)		(5.7	)		(5.0	)		(6.6	)
Operating profit		21.4			31.1			28.1			17.5
Income (loss) from continuing operations	$	13.5		$	21.4		$	19.0		$	11.0
Income (loss) on discontinued operations	$	-		$	-		$	-		$	-
Net income (loss)	$	13.5		$	21.4		$	19.0		$	11.0
Net income (loss) attributable to noncontrolling interests	$	0.1		$	(0.3	)	$	-		$	-
Net income (loss) attributable to AMCOL shareholders	$	13.4		$	21.7		$	19.0		$	11.0
Basic earnings per share attributable to AMCOL shareholders (A)	$	0.42		$	0.68		$	0.59		$	0.34
Diluted earnings per share attributable to AMCOL shareholders (A)	$	0.41		$	0.67		$	0.59		$	0.34

(A) Earnings per share (EPS) for each quarter is computed using the weighted-average number of shares outstanding during the quarter, while EPS for the year is computed using the weighted-average number of shares outstanding during the year. Thus, the sum of the EPS for each of the four quarters may not equal the EPS for the year.

Our construction technologies segment recorded an expense of $1.8 and $0.6 in other non-operating expense to provide for estimated losses on certain non-operating assets in the first quarter ended March 31, 2012 and fourth quarter ended December 31, 2012, respectively.

Our corporate segment recorded $0.7 of selling, general and administrative expense relating to impairment of certain corporate information technology assets in the first quarter ended March 31, 2012.

	2011 Quarters
	First			Second			Third			Fourth
Performance materials	$	115.8		$	118.3		$	122.2		$	120.4
Construction technologies		51.7			74.8			71.0			54.4
Energy services		45.6			45.1			50.1			53.9
Transportation		12.7			14.8			14.9			11.7
Intersegment sales		(7.2	)		(9.8	)		(10.3	)		(6.3	)
Net sales		218.6			243.2			247.9			234.1
Performance materials	$	28.1		$	26.2		$	31.5		$	30.7
Construction technologies		15.3			22.2			21.8			14.6
Energy services		13.5			11.7			15.4			15.4
Transportation		1.4			1.6			1.8			1.3
Intersegment gross profit		(0.4	)		0.1			(0.1	)		0.2
Gross profit		57.9			61.8			70.4			62.2
Performance materials	$	16.1		$	13.4		$	19.5		$	18.1
Construction technologies		1.8			8.0			7.0			0.5
Energy services		5.7			3.7			5.8			6.1
Transportation		0.5			0.7			0.7			0.3
Corporate		(5.1	)		(4.9	)		(7.2	)		(4.6	)
Operating profit		19.0			20.9			25.8			20.4
Income from continuing operations	$	13.2		$	12.9		$	20.8		$	12.8
Income (loss) on discontinued operations	$	(0.1	)	$	0.2		$	(1.3	)	$	-
Net income	$	13.1		$	13.1		$	19.5		$	12.8
Net income (loss) attributable to noncontrolling interests	$	-		$	-			-		$	-
Net income (loss) attributable to AMCOL shareholders	$	13.1		$	13.1		$	19.5		$	12.8
Basic earnings per share attributable to AMCOL shareholders (A)	$	0.42		$	0.41		$	0.61		$	0.40
Diluted earnings per share attributable to AMCOL shareholders (A)	$	0.41		$	0.41		$	0.61		$	0.40

(A) Earnings per share (EPS) for each quarter is computed using the weighted-average number of shares outstanding during the quarter, while EPS for the year is computed using the weighted-average number of shares outstanding during the year. Thus, the sum of the EPS for each of the four quarters may not equal the EPS for the year.

Our performance materials segment recorded the following in the third quarter ended September 30, 2011:

- Reduction to cost of sales of $1.5 resulting from the recovery of certain mining costs in our chromite operations.

- Income from affiliates and joint ventures of $2.1 resulting from the sale of our Belgian joint venture.

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Balance Sheet Related Information (Details 2) (Inventory Valuation Reserve [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Inventory Valuation Reserve [Member]
Inventory valuation reserve
Balance at the beginning of the year	$ 2.1	$ 2.7	$ 2.1
Charged to costs and expenses	2.1	2.1	4.0
Disposals and currency translation adjustments	(1.6)	(2.7)	(3.4)
Balance at the end of the year	$ 2.6	$ 2.1	$ 2.7

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Summary of Significant Accounting Policies (Details)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenue by segment
Percentage of revenue by segment (in hundredths)	100.00%	100.00%	100.00%
Performance materials [Member]
Revenue by segment
Percentage of revenue by segment (in hundredths)	50.00%	51.00%	50.00%
Construction technologies [Member]
Revenue by segment
Percentage of revenue by segment (in hundredths)	23.00%	27.00%	27.00%
Energy services [Member]
Revenue by segment
Percentage of revenue by segment (in hundredths)	26.00%	21.00%	19.00%
Transportation [Member]
Revenue by segment
Percentage of revenue by segment (in hundredths)	4.00%	6.00%	6.00%
Intersegment sales [Member]
Revenue by segment
Percentage of revenue by segment (in hundredths)	(3.00%)	(5.00%)	(2.00%)

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Derivative Instruments and Hedging Activities (Details 1) (Interest rate swaps [Member], Derivatives in Cash Flow Hedging Relationships [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Interest rate swaps [Member] | Derivatives in Cash Flow Hedging Relationships [Member]
Summary of Cash Flow Hedges
Amount of Gain or (Loss) Recognized OCI on Derivatives, net of tax (Effective Portion)	$ 0.6	$ (1.5)

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Stock Compensation Plans (Details Textual) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended								1 Months Ended			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 1998 Long-Term Incentive Plan [Member]	Dec. 31, 2012 2006 Long-Term Incentive Plan [Member]	Dec. 31, 2009 2006 Long-Term Incentive Plan [Member]	Dec. 31, 2012 Prior To 2009 Long Term Incentive Plans [Member]	Dec. 31, 2012 2009 Long Term Incentive Plan [Member]	Feb. 28, 2013 2010 Long-Term Incentive Plan [Member]	Feb. 28, 2012 2010 Long-Term Incentive Plan [Member]	Feb. 28, 2011 2010 Long-Term Incentive Plan [Member]	Dec. 31, 2012 2010 Long-Term Incentive Plan [Member]
Stock Compensation Plans (Textual) [Abstract]
Number of shares reserved (in shares)				3,900,000	1,500,000							2,000,000
Period of vesting of awards				3 years	3 years
Period of life of awards granted				6 years	10 years		6 years	10 years				10 years
Percentage of shares vested initially (in hundredths)				40.00%
Period between former and latter vesting of options				2 years
Percentage of shares vested after two years (in hundredths)				20.00%
Vesting of exercisable options				10 years
Vesting of granted awards					3 years						3 years	3 years
Restricted stock awards, granted (in shares)						40,000					75,000
Share-based Compensation Expense	$ 4.5	$ 3.2	$ 4.1
Restricted stock expense	0	1.7	0.5
Unrecognized stock compensation expense	$ 3.0
Expected weighted average period of recognition	1 year 4 months 24 days
Restricted stock awards fair value, granted (in dollars per share)						$ 28.42					$ 30.66
Percentage of shares vested (in hundredths)									33.33%	33.33%

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Noncontrolling Interest (Tables)

12 Months Ended

Dec. 31, 2012

Noncontrolling Interest [Abstract]

Net income and transfers from noncontrolling interest

The following table sets forth the effects of these transactions on equity attributable to AMCOL's shareholders.

	Twelve Months Ended December 31,
	2012		2011
Net income attributable to AMCOL shareholders	$	65.1	$	58.5
Transfers from noncontrolling interest:
Decrease in additional paid-in capital for purchase of the remaining noncontrolling interest in South Africa (Proprietary) Limited		-		(5.4	)
Decrease in additional paid-in capital for transfer of 26% interest in Batlhako		-		(3.4	)
Change from net income attributable to AMCOL shareholders and transfers from noncontrolling interest	$	65.1	$	49.7

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Balance Sheet Related Information (Details 4) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Accrued liabilities
Bonus	$ 11.5	$ 9.7
Employee benefits and related costs	10.8	10.2
Dividends payable	6.4	5.7
Other	29.7	33.6
Accrued liabilities	$ 58.4	$ 59.2

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Income Taxes (Details 3) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred tax assets attributable to:
Accounts receivable	$ 2.1	$ 1.1
Inventories	2.7	1.7
Employee benefit plans	28.3	25.6
Accrued liabilities	0.6	0.5
Employee incentive plans	2.4	1.3
Tax credit carryforwards	6.9	7.2
Available-for-sale securities	0	2.8
Other	0.3	0.8
Total deferred tax assets	43.3	41.0
Deferred tax liabilities attributable to:
Plant and equipment	(17.7)	(17.6)
Land and mineral reserves	(12.7)	(13.5)
Joint ventures	(2.0)	(1.8)
Intangible assets	(2.7)	(1.7)
Available-for-sale securities	(1.2)	0
Other	(0.8)	(0.5)
Total deferred tax liabilities	(37.1)	(35.1)
Valuation allowances	(5.1)	(6.8)
Net deferred tax asset (liability)	$ 1.1	$ (0.9)

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Goodwill and Intangible Assets (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Goodwill and Intangible Assets (Textual) [Abstract]
Weighted average amortization period of intangible assets with finite lives	11 years
Amortization expense of intangible assets	$ 4.3	$ 4.8	$ 5.1

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Segment Geographic and Market Information (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net sales by product line
Sales Revenue, Net	$ 239.2	$ 253.5	$ 257.5	$ 235.4	$ 234.1	$ 247.9	$ 243.2	$ 218.6	$ 985.6	$ 943.8	$ 826.3
Metalcasting [Member]
Net sales by product line
Sales Revenue, Net									265.5	247.3	196.7
Oilfield Services [Member]
Net sales by product line
Sales Revenue, Net									257.3	194.7	153.6
Specialty Materials [Member]
Net sales by product line
Sales Revenue, Net									106.6	116.8	112.7
Lining Technologies [Member]
Net sales by product line
Sales Revenue, Net									90.5	104.4	111.0
Building Materials [Member]
Net sales by product line
Sales Revenue, Net									78.5	80.7	58.7
Pet Products [Member]
Net sales by product line
Sales Revenue, Net									52.9	56.1	62.0
Basic Minerals [Member]
Net sales by product line
Sales Revenue, Net									55.2	48.2	43.8
Contracting Services [Member]
Net sales by product line
Sales Revenue, Net									18.8	36.0	31.0
Drilling Products [Member]
Net sales by product line
Sales Revenue, Net									38.2	31.4	26.1
Transportation [Member]
Net sales by product line
Sales Revenue, Net									$ 22.1	$ 28.2	$ 30.7

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Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2012

Summary of Significant Accounting Policies [Abstract]

Summary of Significant Accounting Policies

(1)          Summary of Significant Accounting Policies

Recently Adopted Accounting Pronouncements

In September 2011, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2011-08, codified in Accounting Standards Codification ("ASC") Topic 350 – Intangibles – Goodwill and Other. ASU 2011-08 simplifies how entities test goodwill for impairment. It permits an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. This assessment can then be used to determine whether it is necessary to perform the two-step goodwill impairment test described in Topic 350. The adoption of this ASU on January 1, 2012 did not have a material impact on our financial statements.

In June 2011, the FASB issued ASU 2011-05, codified in ASC Topic 220 – Comprehensive Income to increase the prominence of items reported in other comprehensive income ("OCI"). This ASU requires presentation of items of net income, items of OCI and total comprehensive income either in one continuous statement or two separate but consecutive statements. This ASU does not change the items which must be reported in OCI, how such items are measured or when they must be reclassified to net income. The FASB subsequently deferred the effective date of certain provisions of this ASU pertaining to the reclassification of items out of accumulated other comprehensive income, pending the issuance of further guidance on that matter. The adoption of this ASU on January 1, 2012 did not have a material impact on our financial statements.

In May 2011, the FASB issued ASU 2011-04, codified in ASC Topic 820 – Fair Value Measurements. This ASU includes amendments that clarify the intent about the application of existing fair value measurement requirements. Specifically, it requires additional disclosures for fair value measurements that are based on significant inputs. The adoption of this ASU on January 1, 2012 did not have a material impact on our financial statements.

Accounting Pronouncements not yet adopted

In February 2013, the FASB issued ASU 2013-02 codified in ASC Topic 220 – Comprehensive Income which adds new disclosure requirements for items reclassified out of accumulated other comprehensive income. This ASU requires entities to disclose additional information about reclassification adjustments, including changes in accumulated other comprehensive income balances by component and significant items reclassified out of accumulated other comprehensive income. This ASU will primarily impact our disclosures for reclassification adjustments and as such is not expected to have a material impact on our financial statements when we adopt it on January 1, 2013.

In July 2012, the FASB issued ASU 2012-02, codified in ASC Topic 350 – Intangibles – Goodwill and Other. This ASU gives entities the option to first assess the qualitative factors to determine whether the existence of events and circumstances indicates that it is more likely than not that an indefinite-lived intangible asset is impaired. If impairment is indicated, the fair value of the indefinite-lived intangible asset should be determined and the quantitative impairment test should be performed by comparing the fair value with the carrying value in accordance with subtopic 350-30. If impairment is not indicated, the entity is not required to take further action. The ASU will not have a material impact on our financial statements when we adopt it on January 1, 2013.

Principles of Consolidation

The consolidated financial statements include the accounts of our domestic and foreign subsidiaries as well as variable interest entities for which we have determined that we are the primary beneficiary. We consolidate all subsidiaries in which we own more than 50% of their equity. We use the equity method of accounting to incorporate the results of our investments in companies in which we have significant influence.

Our corporate segment includes the elimination of intersegment sales as well as certain expenses associated with research and development, management, employee benefits and information technology activities for our Company. Approximately 71% and 77% of the revenue elimination in the years ended December 31, 2012 and 2011, respectively, and 100% of the revenue elimination in the year ended December 31, 2010 represent the elimination of shipping revenues between our transportation segment and its domestic sister companies.

Segments

In the fourth quarter of 2012, we renamed three of our segments to better reflect their business operations. The minerals and materials, environmental, and oilfield services segments are now named performance materials, construction technologies, and energy services, respectively. We also restructured some of our product lines within the performance materials segment by including the results of our agriculture related operations in our specialty materials product line as opposed to our basic minerals product line where it had previously been included.

The composition of consolidated revenues by segment is as follows:

	Percentage of Net Sales
	2012			2011			2010
Performance materials		50	%		51	%		50	%
Construction technologies		23	%		27	%		27	%
Energy services		26	%		21	%		19	%
Transportation		4	%		6	%		6	%
Intersegment sales		-3	%		-5	%		-2	%
		100	%		100	%		100	%

Further descriptions of our products, principal markets and the relative significance of our segment operations are included in Note 2.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires us to make estimates and assumptions that affect the amount of assets, liabilities, revenues and expenses reported in our financial statements as well as certain disclosures contained therein. Actual results may differ from those estimates.

Revenue Recognition

We recognize revenue from sales of products when title passes to the customer, the customer assumes the risks and rewards of ownership, and collectibility is reasonably assured; generally, this occurs when we ship product to customers. We record allowances for discounts, rebates, and estimated returns at the time of sale and report these as reductions to revenue. We generate some sales through independent, third-party representatives and record the commission paid to the representative as an expense within selling, general and administrative expenses.

We recognize revenue for freight delivery services within our transportation segment when the service is provided. We accrue amounts payable for purchased transportation, commissions and insurance when the related revenue is recognized.

Service and rental revenues are primarily generated in our construction technologies and energy services segments. We recognize these revenues in the period such services are performed and collectibility is reasonably assured.

We record revenue from long-term construction contracts using the percentage-of-completion method. Progress is generally based upon costs incurred to date as compared to the total estimated costs to complete the work under the contract or the amount of product installed in relation to the total amount expected to be installed. All known or anticipated losses on contracts are provided when they become evident. Cost adjustments that are in the process of being negotiated with customers for extra work or changes in scope of work are included in revenue when collection is reasonably assured.

Translation of Foreign Currencies

Foreign entities generally utilize their local currency as the functional currency. We record gains and losses resulting from foreign currency transactions in net income, and we reflect the adjustments resulting from the translation of financial statements into our reporting currency during consolidation as a component of accumulated other comprehensive income within equity. The assets and liabilities of subsidiaries located outside of the United States are translated into U.S. dollars at the rates of exchange at the balance sheet dates. The statements of operations are translated using average exchange rates throughout the period.

Cash Equivalents

We classify all short-term, highly liquid investments with original maturities of three months or less as cash and cash equivalents.

Inventories

Inventories are valued at the lower of cost or net realizable value. Cost is determined by the first-in, first-out (FIFO) method. Mineral exploration costs are expensed as incurred.

Receivables and Allowance for Doubtful Accounts

We carry our receivables at their face amount less an allowance for bad debts. We establish the allowance for bad debts based on a review of several factors, including historical collection experience, current aging status of the customer accounts, and the financial condition of our customers.

Property, Plant, Equipment, and Mineral Rights and Reserves

Property, plant, equipment, and mineral rights and reserves are carried at cost less accumulated depreciation and depletion. Depreciation is computed using the straight-line method for substantially all of the assets. Certain other assets, primarily field and stockpile related equipment and mineral rights and reserves, are depreciated on the units-of-production method.

Goodwill

Goodwill represents the excess of the purchase price over the fair value of the net assets of acquired businesses. Fair value reflects the price a market participant would be willing to pay in a potential sale of the reporting unit. We review the carrying value of goodwill in each reporting unit for impairment annually as of October 1st or more frequently if indications exist which may suggest the carrying value is not recoverable. Such indicators may include deterioration in general economic conditions, negative developments in equity and credit market, adverse changes in the market in which we operate, increase in input costs that have a negative impact on earnings and cash flows, or a trend of negative or declining cash flows over multiple periods, among others.

In conducting our 2012 annual goodwill impairment assessment, we relied on both the qualitative and quantitative assessment methodologies.

For the reporting units assessed using the qualitative method, we identified various events and circumstances (or factors) that would affect the estimated fair value of our reporting units and determined the level of impact a particular factor would have on the estimated fair value. In addition, we considered the results of the most recent two-step quantitative impairment test completed for each reporting unit and compared the weighted average cost of capital between the current and prior years for each reporting unit. We concluded that it was not more likely than not that any of our reporting units' fair value under qualitative assessment were less than their carrying value. As such, no further analysis was required.

For the reporting unit assessed using quantitative method, we performed a two-step quantitative impairment test. We used a discounted cash flow model (income approach) to estimate the fair value of our reporting unit as we believe that the forecasted cash flows are the best indicator of such fair value. A number of significant assumptions and estimates, including expectations of our reporting unit's business performance, financial results, useful life of assets, discount rate, and comparable market data, were involved in developing the discounted cash flow model. We concluded that the fair value was not less than the carrying value and no further analysis was required.

Other Intangible Assets

Other intangible assets with a finite useful life are amortized on the straight-line method over the expected periods to be benefited.

Impairment of Long-Lived Assets

We review the carrying values of long-lived assets, including property, plant and equipment and intangible assets with a finite useful life whenever facts and circumstances indicate that the assets may be impaired. Recoverability of assets to be held and used is measured by comparing the carrying amount of an asset to the future net undiscounted cash flows we expect it to generate. If we consider an asset to be impaired, we record an impairment charge equal to the amount by which the carrying value of the asset exceeds the fair value. We report an asset to be disposed of at the lower of its carrying value or fair value, less costs of disposal.

In the case of intangible assets with indefinite lives, we review them annually for impairment. This review involves comparing the fair value of the intangible asset with its carrying amount. If its carrying amount exceeds its fair value, we recognize an impairment loss equal to that excess.

Available-for-Sale Securities

We record available-for-sale securities at their fair value using quoted market prices. We report their unrealized gains and losses, net of applicable taxes, as a component of accumulated other comprehensive income within equity. We have one equity security that we have accounted for as an available-for-sale security as of December 31, 2012 and 2011.

Income Taxes

We recognize deferred tax assets and liabilities relating to the future tax consequences of differences between the financial statement carrying value of existing assets and liabilities and their respective tax values. We measure deferred tax assets and liabilities using tax rates in effect in the years in which those temporary differences are expected to be recovered or settled. We recognize the effect that changes in tax rates have on deferred tax assets and liabilities in income in the period that the change is enacted. Valuation allowances are recorded to reduce deferred tax assets to amounts that are more likely than not to be realized. We classify interest and penalties associated with income taxes, including uncertain tax positions, within the income tax expense line item of our Consolidated Statement of Operations.

Freight and Sales Taxes

We report amounts charged to customers for shipping and handling fees as revenues and we report amounts incurred for these costs within cost of sales in the consolidated statements of operations (i.e. gross presentation with revenues and cost of sales). Also, we report amounts charged to customers for sales taxes and the related costs incurred for sales tax remittances to governmental agencies within net sales in the Consolidated Statement of Operations (i.e. net presentation within revenues).

Product Liability & Warranty Expenses

We report expenses incurred for warranty and product liability costs in general, selling and administrative expenses in our Consolidated Statement of Operations. Our warranty accrual is based on known warranty issues as of the balance sheet date as well as a reserve for unidentified claims based on historical experience.

Legal Fees

We report expenses for fees, including legal costs associated with loss contingencies, when services are performed.

Land Reclamation

We mine land for various minerals using a surface-mining process that requires the removal of overburden. In many instances, we are obligated to restore the land upon completion of the mining activity. As we remove overburden, we recognize this liability for land reclamation based on the estimated fair value of the obligation. We adjust the obligation to reflect the passage of time and changes in estimated future cash outflows.

Research and Development

Research and development costs are expensed as incurred within selling, general and administrative expenses.

Earnings per Share

Basic earnings per share is computed by dividing net income attributable to AMCOL shareholders by the weighted average number of common shares outstanding. Diluted earnings per share is similarly computed, except the denominator is increased to include the dilutive effects of stock compensation awards and other share equivalents. Stock compensation awards are antidilutive and therefore excluded from our diluted earnings per share calculation when their exercise would result in a net decrease in the weighted average number of common shares outstanding. A reconciliation between the shares used to compute basic and diluted earnings per share follows:

	2012		2011		2010
Weighted average common shares outstanding for the year		32,050,538		31,708,949		31,178,813
Dilutive impact of stock equivalents		347,827		436,824		368,778
Weighted average common and common equivalent shares for the year		32,398,365		32,145,773		31,547,591
Common shares outstanding at December 31		32,184,110		31,728,969		31,032,791
Weighted average anti-dilutive shares excluded from the computation of diluted earnings per share		402,485		189,768		470,097

Stock-Based Compensation

We account for stock-based compensation using the grant date fair value, which is based on the Black-Scholes option-pricing model. We recognize compensation cost over the requisite service period, which is generally the vesting period of the award.

Derivative Instruments and Hedging Activities

From time to time, we use derivative financial instruments to manage exposures to changes in interest rates and foreign currency exchange rates. We do not use derivative instruments for trading or other speculative purposes. We recognize our derivative instruments as either assets or liabilities in the balance sheet at their fair value. Our recognition of changes in the fair value (i.e. gains and losses) of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and the type of that relationship. Hedges designated as cash flow hedges result in the changes in fair value being recorded in accumulated other comprehensive income. Changes in the fair value of derivative financial instruments for which hedge accounting is not applied, are recorded within Other, net within our Consolidated Statement of Operations.

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Equity Investees (Details)	Dec. 31, 2012
Ashapura Volclay Limited [Member]
Equity method investments in and advances to affiliates and joint ventures
Ownership Interest (in hundredths)	50.00%
CETCO-Bentonit Uniao Technologias Ambientais Ltda. [Member]
Equity method investments in and advances to affiliates and joint ventures
Ownership Interest (in hundredths)	50.00%
Egypt Bentonite & Derivatives Co. [Member]
Equity method investments in and advances to affiliates and joint ventures
Ownership Interest (in hundredths)	30.00%
Egypt Mining & Drilling Co. [Member]
Equity method investments in and advances to affiliates and joint ventures
Ownership Interest (in hundredths)	31.00%
Egypt Nano Technologies Co. [Member]
Equity method investments in and advances to affiliates and joint ventures
Ownership Interest (in hundredths)	27.00%
Maprid Tech Cast, S.A. de C.V. [Member]
Equity method investments in and advances to affiliates and joint ventures
Ownership Interest (in hundredths)	49.00%
Volclay de Mexico, S.A. de C.V. [Member]
Equity method investments in and advances to affiliates and joint ventures
Ownership Interest (in hundredths)	49.00%
Volclay Japan Co., Ltd. [Member]
Equity method investments in and advances to affiliates and joint ventures
Ownership Interest (in hundredths)	50.00%

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Summary of Significant Accounting Policies, (Details 1)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Reconciliation between basic and diluted earnings per share
Weighted average common shares outstanding for the year (in shares)	32,050,538	31,708,949	31,178,813
Dilutive impact of stock equivalents (in shares)	347,827	436,824	368,778
Weighted average common and common equivalent shares for the year (in shares)	32,398,365	32,145,773	31,547,591
Common shares outstanding at December 31 (in shares)	32,184,110	31,728,969	31,032,791
Weighted average anti-dilutive shares excluded from the computation of diluted earnings per share (in shares)	402,485	189,768	470,097

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Balance Sheet Related Information (Tables)

12 Months Ended

Dec. 31, 2012

Balance Sheet Related Information [Abstract]

Allowance for doubtful accounts

We are exposed to credit risk on certain assets, primarily accounts receivable. We provide credit to customers in the ordinary course of business and perform ongoing credit evaluations. Concentrations of credit risk with respect to trade receivables are limited due to the large number of customers comprising our customer base. We believe our allowance for doubtful accounts is sufficient to cover customer credit risks. The allowance for doubtful accounts as of and the activity for the years ended December 31 was as follows:

	2012			2011			2010
Balance at the beginning of the year	$	7.5		$	6.6		$	6.3
Charged to expense (income)		5.3			3.6			2.4
Write-offs and currency translation adjustments		(1.8	)		(2.7	)		(2.1	)
Balance at the end of the year		11.0			7.5			6.6

Inventories

Inventories at December 31 consisted of:

	2012		2011
Crude stockpile inventories	$	60.8	$	53.4
In-process and finished goods inventories		70.5		65.0
Other raw material, container, and supplies inventories		22.5		25.9
		153.8		144.3

Inventory, raw materials and supplies, net of reserves

Included within Other raw material, container, and supplies inventories in the table above is our reserve for slow moving and obsolete inventory. The balance of this reserve as of and the activity for the years ended December 31 was as follows:

	2012			2011			2010
Balance at the beginning of the year	$	2.1		$	2.7		$	2.1
Charged to costs and expenses		2.1			2.1			4.0
Disposals and currency translation adjustments		(1.6	)		(2.7	)		(3.4	)
Balance at the end of the year		2.6			2.1			2.7

Reclamation liability

The following table presents our reclamation liability at the end of and changes during each of the years presented:

	2012			2011
Balance at beginning of the year	$	9.3		$	8.0
Settlement of obligations		(3.9	)		(4.3	)
Liabilities incurred and accretion expense		4.2			6.0
Currency translation adjustments		(0.1	)		(0.4	)
Balance at the end of the year		9.5			9.3

Accrued liabilities

Accrued liabilities at December 31 consisted of:

	2012		2011
Bonus	$	11.5	$	9.7
Employee benefits and related costs		10.8		10.2
Dividends payable		6.4		5.7
Other		29.7		33.6
		58.4		59.2

Accumulated other comprehensive income (loss)

Accumulated other comprehensive income (loss) at December 31 was comprised of the following components:

	2012			2011
Cumulative foreign currency translation	$	6.0		$	0.6
Prior service cost on pension plans (net of tax benefit of $0.1 in 2012 and $0.1 in 2011)		(0.2	)		(0.2	)
Net actuarial loss on pension plans (net of tax benefit of $7.8 in 2012 and $6.9 in 2011)		(12.0	)		(11.9	)
Unrealized loss on interest rate swap agreement (net of tax benefit of $3.3 in 2012 and $3.3 in 2011)		(5.1	)		(5.7	)
Unrealized gain on available-for-sale securities (net of tax expense of $1.2 in 2012 and $0 in 2011)		12.1			2.5
		0.8			(14.7	)

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Segment, Geographic, and Market Information (Tables)

12 Months Ended

Dec. 31, 2012

Segment, Geographic, and Market Information [Abstract]

Segment disclosure

The following table sets forth certain financial information as of and for the years ended December 31, 2012, 2011 and 2010:

	2012			2011			2010
Net sales:
Performance materials	$	491.9		$	476.7		$	416.5
Construction technologies		223.1			251.9			225.5
Energy services		257.3			194.7			153.6
Transportation		44.0			54.1			52.2
Intersegment sales		(30.7	)		(33.6	)		(21.5	)
Total		985.6			943.8			826.3
Operating profit (loss):
Performance materials	$	76.3		$	67.1		$	53.5
Construction technologies		15.6			17.3			20.4
Energy services		28.7			21.3			13.7
Transportation		0.8			2.2			2.4
Corporate		(23.3	)		(21.8	)		(21.0	)
Total		98.1			86.1			69.0
Assets:
Performance materials	$	454.0		$	430.8		$	410.4
Construction technologies		157.6			159.4			161.0
Energy services		225.8			194.7			172.5
Transportation		4.0			3.9			4.0
Corporate		69.2			60.3			59.4
Total		910.6			849.1			807.3
Depreciation, depletion and amortization:
Performance materials	$	19.6		$	20.6		$	17.2
Construction technologies		5.5			5.4			5.4
Energy services		17.1			13.3			11.9
Transportation		0.1			0.1			-
Corporate		3.0			2.7			1.8
Total		45.3			42.1			36.3
Capital expenditures:
Performance materials	$	29.4		$	27.3		$	29.7
Construction technologies		8.3			8.3			2.6
Energy services		31.5			23.1			13.2
Transportation		0.1			0.2			0.1
Corporate		5.2			2.1			1.7
Total		74.5			61.0			47.3
Research and development expenses:
Performance materials	$	7.2		$	6.5		$	5.9
Construction technologies		2.3			2.3			2.3
Energy services		0.9			0.2			0.7
Corporate		-			0.1			0.3
Total		10.4			9.1			9.2

Geographic information

The following table sets forth certain geographic financial information as of and for the three years ending December 31st. EMEA includes the European, Middle East and African geographic regions. Geographic sales and operating profit are determined based on origin of the sale as opposed to destination of the sale. Inter-regional sales and operating profit are eliminated in Americas.

	2012		2011		2010
Sales to unaffiliated customers shipped from:
Americas	$	630.7	$	590.0	$	516.9
EMEA		191.6		220.1		185.6
Asia Pacific		163.3		133.7		123.8
Total		985.6		943.8		826.3
Operating profit from sales from:
Americas	$	65.5	$	57.5	$	45.8
EMEA		10.4		10.3		5.6
Asia Pacific		22.2		18.3		17.6
Total		98.1		86.1		69.0
Accounts receivable in:
Americas	$	109.9	$	112.3	$	106.0
EMEA		45.3		51.9		46.5
Asia Pacific		47.5		40.2		37.3
Total		202.7		204.4		189.8
Property, plant, equipment, and mineral rights and reserves in:
Americas	$	134.8	$	116.0	$	107.7
EMEA		112.3		108.7		114.3
Asia Pacific		54.8		48.8		49.7
Total		301.9		273.5		271.7
Identifiable assets in:
Americas	$	448.3	$	420.4	$	428.7
EMEA		303.3		289.4		265.5
Asia Pacific		159.0		139.3		113.1
Total		910.6		849.1		807.3

Net sales by product line

Net sales by product line for each fiscal year are as follows:

	2012		2011		2010
Metalcasting	$	265.5	$	247.3	$	196.7
Oilfield services		257.3		194.7		153.6
Specialty materials		106.6		116.8		112.7
Lining technologies		90.5		104.4		111.0
Building materials		78.5		80.7		58.7
Pet products		52.9		56.1		62.0
Basic minerals		55.2		48.2		43.8
Contracting services		18.8		36.0		31.0
Drilling products		38.2		31.4		26.1
Transportation		22.1		28.2		30.7
Total		985.6		943.8		826.3

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Quarterly Results (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended			3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Sep. 30, 2011 Performance Materials [Member]	Dec. 31, 2012 Construction Technologies [Member]	Mar. 31, 2012 Construction Technologies [Member]	Mar. 31, 2012 Corporate [Member]	Sep. 30, 2011 Belgian joint venture [Member] Performance Materials [Member]
Segment Reporting Information [Line Items]
Segment recorded expenses	$ (3.4)	$ 0.2	$ 1.3		$ 0.6	$ 1.8
Impairment of certain corporate information technology assets							0.7
Gain (loss) from sale of joint venture and affiliated entities								2.1
Recovery of mining costs				$ 1.5

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Property Plant Equipment and Mineral Rights and Reserves (Details 1)	12 Months Ended
	Dec. 31, 2012
Building and improvements [Member] | Minimum [Member]
Range of useful lives to depreciate plant and equipment
Range of useful lives to depreciate plant and equipment	3 years
Building and improvements [Member] | Maximum [Member]
Range of useful lives to depreciate plant and equipment
Range of useful lives to depreciate plant and equipment	50 years
Machinery and equipment [Member] | Minimum [Member]
Range of useful lives to depreciate plant and equipment
Range of useful lives to depreciate plant and equipment	1 year
Machinery and equipment [Member] | Maximum [Member]
Range of useful lives to depreciate plant and equipment
Range of useful lives to depreciate plant and equipment	24 years

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Summary of Significant Accounting Policies, (Details Textual)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Summary of Significant Accounting Policies (Textual) [Abstract]
Minimum percentage at which subsidiaries consolidated (in hundredths)	50.00%
Percentage of revenue elimination (in hundredths)	71.00%	77.00%	100.00%

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Property, Plant, Equipment and Mineral Rights and Reserves (Tables)

12 Months Ended

Dec. 31, 2012

Property, Plant, Equipment and Mineral Rights and Reserves [Abstract]

Property, plant, equipment and mineral rights and reserves

Property, plant, equipment and mineral rights and reserves consisted of the following:

	December 31,
	2012		2011
Mineral rights and reserves	$	48.6	$	52.5
Land		13.0		12.1
Buildings and improvements		104.9		97.5
Machinery and equipment		414.5		362.0
Construction in progress		32.6		25.2
		613.6		549.3

Range of useful lives to depreciate plant and equipment

The range of useful lives to depreciate plant and equipment is as follows:

Buildings and improvements	3-50 years
Machinery and equipment	1-24 years

Depreciation and depletion charged to income

Depreciation and depletion were charged to income as follows:

	2012		2011		2010
Depreciation expense	$	39.3	$	35.0	$	30.1
Depletion expense		1.6		2.6		1.2
		40.9		37.6		31.3

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Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets [Abstract]

Schedule of the balance of goodwill by segment and the activity occurring in the past two fiscal years

The balance of goodwill by segment and the activity occurring in the past two fiscal years is as follows:

	Performance Materials			Construction Technologies			Energy Services		Consolidated
Balance at December 31, 2010	$	18.2		$	21.7		$	31.0	$	70.9
Change in goodwill relating to:
Sale of business		-			(0.2	)		-		(0.2	)
Foreign exchange translation		(0.8	)		(0.4	)		-		(1.2	)
Total changes		(0.8	)		(0.6	)		-		(1.4	)
Balance at December 31, 2011		17.4			21.1			31.0		69.5
Change in goodwill relating to:
Foreign exchange translation		0.4			0.3			-		0.7
Total changes		0.4			0.3			-		0.7
Balance at December 31, 2012		17.8			21.4			31.0		70.2

Schedule of the balance of intangible assets by segment and the activity occurring in the past two fiscal years

Intangible assets were as follows:

	December 31, 2012							December 31, 2011
	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Gross Carrying Value		Accumulated Amortization			Net Carrying Value
Intangibles subject to amortization:
Trademarks	$	1.6	$	(1.6	)	$	-	$	1.6	$	(1.5	)	$	0.1
Patents		6.9		(6.9	)		-		6.9		(6.8	)		0.1
Customer related assets		47.1		(23.0	)		24.1		47.1		(19.7	)		27.4
Non-compete agreements		2.2		(2.2	)		-		2.2		(2.1	)		0.1
Developed technology		4.0		(2.4	)		1.6		4.0		(2.0	)		2.0
Other		3.9		(1.8	)		2.1		2.5		(1.4	)		1.1
Subtotal		65.7		(37.9	)		27.8		64.3		(33.5	)		30.8
Intangibles not subject to amortization:
Trademarks and tradenames		6.1		-			6.1		6.1		-			6.1
Total		71.8		(37.9	)		33.9		70.4		(33.5	)		36.9

Schedule of estimate amortization expense of intangible assets for the future years

Intangible assets with finite lives are being amortized primarily on a straight-line basis over their estimated useful lives. The weighted average amortization period of our intangible assets with finite lives is 11 years. We did not recognize any material impairment charge in either of the years included above with respect to intangible assets. Amortization expense on intangible assets for each of the years ended December 31, 2012, 2011, and 2010 was $4.3, $4.8, and $5.1, respectively. We estimate amortization expense of intangible assets for the future years ending December 31 will approximate the following amounts:

	Amount
2013	$	4.3
2014		4.0
2015		3.8
2016		3.8
2017		3.0

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Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flow from operating activities:
Net income (loss)	$ 64.9	$ 58.5	$ 28.5
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation, depletion, and amortization	45.3	42.1	36.3
Undistributed losses (earnings) from affiliates and joint ventures	(2.0)	(3.6)	11.5
Increase (decrease) in allowance for doubtful accounts	5.5	5.1	0.3
Decrease (increase) in deferred income taxes	(0.8)	6.8	5.2
Tax benefit from employee stock plans	(0.1)	0.6	0.3
(Gain) loss on sale of depreciable assets	(1.0)	(0.8)	0.2
Impairment charge	0.9	0.1	1.0
Stock compensation expense	4.4	4.9	4.5
Excess tax benefits on stock option exercises	(0.4)	(0.7)	(0.4)
Other	2.3	0.5	(0.3)
(Increase) decrease in current assets, net of effects of acquisitions:
Accounts receivable	(0.3)	(37.2)	(45.7)
Income taxes receivable	1.2	0.3	(6.7)
Inventories	(7.6)	(46.1)	(11.3)
Prepaid expenses	(1.6)	(3.6)	3.2
Other assets	0	(0.1)	0
Increase (decrease) in current liabilities, net of effects of acquisitions:
Accounts payable	(6.7)	10.0	12.6
Accrued liabilities and income taxes	(1.1)	4.4	9.2
(Increase) decrease in other noncurrent assets	(0.4)	(0.6)	(4.4)
Increase (decrease) in other noncurrent liabilities	6.2	(1.3)	4.3
Net cash provided by operating activities	108.7	39.3	48.3
Cash flow from investing activities:
Proceeds from sale of land and depreciable assets	2.4	1.9	0.8
Capital expenditures	(74.5)	(61.0)	(47.3)
(Increase) decrease in investments and advances (to) from affiliates and joint ventures	0.2	(2.9)	(2.7)
Proceeds from sale of interests in affiliates and joint ventures	2.4	6.2	0
Acquisition of businesses, net of cash acquired	0	0	(0.4)
Other	1.4	1.6	0.9
Net cash used in investing activities	(68.1)	(54.2)	(48.7)
Cash flow from financing activities:
Proceeds from issuance of debt	1,575.8	1,345.0	1,229.0
Principal payments of debt	(1,588.1)	(1,319.7)	(1,201.3)
Purchase of noncontrolling interest	0	0	(11.9)
Proceeds from exercise of stock awards	9.7	8.1	5.4
Excess tax benefits on stock option exercises	0.4	0.7	0.4
Contribution from noncontrolling partner	0.1	0	0
Dividends paid	(23.5)	(22.8)	(22.4)
Net cash provided by (used in) financing activities	(25.6)	11.3	(0.8)
Effect of foreign currency rate changes on cash	0.9	0.9	0.3
Net increase (decrease) in cash and cash equivalents	15.9	(2.7)	(0.9)
Cash and cash equivalents at the beginning of the year	24.1	26.8	27.7
Cash and cash equivalents at end of the year	40.0	24.1	26.8
Cash paid for:
Interest, net	9.6	9.8	9.2
Income taxes, net	$ 18.3	$ 9.6	$ 18.8

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Equity Investees (Tables)

12 Months Ended

Dec. 31, 2012

Equity Investees [Abstract]

Investments in and advances to affiliates and joint ventures

Information about our investments in and advances to affiliates and joint ventures at December 31, 2012 is as follows:

	Ownership Interest
Ashapura Volclay Limited		50	%
CETCO-Bentonit Uniao Technologias Ambientais Ltda.		50	%
Egypt Bentonite & Derivatives Co.		30	%
Egypt Mining & Drilling Co.		31	%
Egypt Nano Technologies Co.		27	%
Maprid Tech Cast, S.A. de C.V.		49	%
Volclay de Mexico, S.A. de C.V.		49	%
Volclay Japan Co., Ltd.		50	%

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Employee Benefit Plans (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Pension Plan [Member]
Change in benefit obligations:
Beginning projected benefit obligation	$ 58.1	$ 48.0
Service cost	1.7	1.5	1.4
Interest cost	2.7	2.6	2.4
Actuarial (gain)/loss	2.6	7.2
Benefits paid	(1.3)	(1.2)
Ending projected benefit obligation	63.8	58.1	48.0
Change in plan assets:
Beginning fair value	34.5	35.8
Actual return	4.3	(1.5)
Company contribution	1.7	1.5
Benefits paid	(1.4)	(1.3)
Ending fair value	39.1	34.5	35.8
Funded status of the plan	(24.7)	(23.6)
Supplementary Pension Plan [Member]
Change in benefit obligations:
Beginning projected benefit obligation	11.6	9.2
Service cost	0.3	0.2	0.3
Interest cost	0.5	0.5	0.5
Actuarial (gain)/loss	1.2	2.0
Benefits paid	(0.4)	(0.3)
Ending projected benefit obligation	13.2	11.6	9.2
Change in plan assets:
Beginning fair value	0	0
Actual return		0
Company contribution	0.4	0.4
Benefits paid	(0.4)	(0.4)
Ending fair value	0	0	0
Funded status of the plan	$ (13.2)	$ (11.6)

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Stock Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2012

Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]

Summary of fair value of awards granted

We provide compensation to certain employees using stock based awards. For purposes of calculating compensation cost, we estimate the fair value of each award on the date of grant using the Black-Scholes option-pricing model. We used the following assumptions in calculating the fair value of awards granted in each of the following years:

	2012			2011			2010
Risk-free interest rate		1.0	%		2.2	%		2.7	%
Expected life of option in years		5.39			5.51			5.61
Expected dividend yield of stock		2.3	%		2.5	%		3.2	%
Expected volatility of stock price		56.4	%		49.0	%		50.8	%
Weighted-average per share fair value of options granted	$	12.36		$	11.42		$	8.62

Summary of all stock compensation plans

All Stock Compensation Plans

All Stock Compensation Plans	2012		2011		2010
Intrinsic value of awards exercised during the year	$	3.6	$	5.1	$	3.9
Fair value of awards vested during the year		2.9		2.4		3.9
Grant date fair value of awards granted during the year		5.2		4.3		3.4

Summary of stock compensation awards outstanding and exercisable

The following table summarizes information about stock compensation awards outstanding and exercisable at December 31, 2011:

							Weighted
			Weighted				Average
All Stock Compensation Plans	Number		Average				Remaining
	of		Exercise		Intrinsic		Contractual
	Awards		Price		Value		Life (Yrs.)
Awards outstanding at December 31, 2012		1,633,405	$	26.22	$	7.3		6.29
Awards exercisable at December 31, 2012		898,793		23.82		6.2		4.46

Summary of nonvested stock compensation awards

The following table summarizes information about our nonvested stock compensation awards outstanding:

	December 31, 2012					December 31, 2011					December 31, 2010
All Stock Compensation Plans- Nonvested Awards	Awards			Weighted Average Grant date Fair value		Awards			Weighted Average Grant date Fair value		Awards			Weighted Average Grant date Fair value
Nonvested awards outstanding at January 1		660,059		$	9.80		635,726		$	7.87		721,442		$	7.46
Granted		417,420			12.36		379,425			11.42		390,750			8.62
Vested		(317,635	)		8.99		(311,630	)		7.80		(453,744	)		8.50
Forfeited		(25,232	)		11.59		(43,462	)		9.77		(22,722	)		7.59
Nonvested awards outstanding at December 31		734,612			11.55		660,059			9.80		635,726			7.87

1998 Long-Term Incentive Plan [Member]

Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]

Summary of changes in options outstanding

1998 Long-Term Incentive Plan

Changes in options outstanding are summarized as follows:

	December 31, 2012					December 31, 2011					December 31, 2010
1998 Long-Term Incentive Plan	Shares			Weighted Average Exercise Price		Shares			Weighted Average Exercise Price		Shares			Weighted Average Exercise Price
Options outstanding at January 1		169,051		$	21.82		413,710		$	19.88		720,791		$	18.19
Granted		-			-		-			-		-			-
Exercised		(165,401	)		21.80		(243,659	)		18.54		(306,548	)		15.93
Forfeited							-			-		-			-
Expired		(3,650	)		22.57		(1,000	)		14.79		(533	)		4.76
Options outstanding at December 31		-			-		169,051			21.82		413,710			19.88
Options exercisable at December 31		-			-		169,051			21.82		413,710			19.88

2006 Long-Term Incentive Plan [Member]

Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]

Summary of changes in options outstanding

2006 Long-Term Incentive Plan

	December 31, 2012					December 31, 2011					December 31, 2010
2006 Long-Term Incentive Plan	Awards			Weighted Average Exercise Price		Awards			Weighted Average Exercise Price		Awards			Weighted Average Exercise Price
Awards outstanding at January 1		1,189,012		$	22.91		1,389,598		$	23.02		1,060,057		$	22.89
Granted		-			-		-			-		390,750			23.24
Exercised		(297,528	)		23.11		(170,998	)		24.04		(29,862	)		21.62
Forfeited		(3,125	)		23.24		(20,087	)		20.48		(22,722	)		19.92
Expired		(5,250	)		23.89		(9,501	)		23.64		(8,625	)		29.62
Awards outstanding at December 31		883,109			22.84		1,189,012			22.91		1,389,598			23.02
Awards exercisable at December 31		781,574			22.79		885,003			23.67		754,622			24.86

2010 Long-Term Incentive Plan [Member]

Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]

Summary of changes in options outstanding

2010 Long-Term Incentive Plan

	December 31, 2012					December 31, 2011
2010 Long-Term Incentive Plan	Awards			Weighted Average Exercise Price		Awards			Weighted Average Exercise Price
Awards outstanding at January 1		356,050		$	30.66				$	-
Granted		417,420			29.80		379,425			30.66
Exercised		(567	)		30.66		-			-
Forfeited		(22,107	)		30.12		(23,375	)		30.66
Expired		(500	)		30.66		-			-
Awards outstanding at December 31		750,296			30.20		356,050			30.66
Awards exercisable at December 31		117,219			30.66		-			-

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Balance Sheet Related Information (Details 5) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Accumulated other comprehensive income (loss)
Cumulative foreign currency translation	$ 6.0	$ 0.6
Prior service cost on pension plans (net of tax benefit of $0.1 in 2012 and $0.1 in 2011)	(0.2)	(0.2)
Net actuarial loss on pension plans (net of tax benefit of $7.8 in 2012 and $6.9 in 2011)	(12.0)	(11.9)
Unrealized loss on interest rate swap agreement (net of tax benefit of $3.3 in 2012 and $3.3 in 2011)	(5.1)	(5.7)
Unrealized gain on available-for-sale securities (net of tax expense of $1.2 in 2012 and $0 in 2011)	12.1	2.5
Accumulated other comprehensive income (loss)	$ 0.8	$ (14.7)

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Long-Term Debt (Details1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012
Maturities of long-term debt outstanding
2013	$ 1.0
2014	0.5
2015	0.1
2016	0
2017	198.2
Thereafter	50.0
Revolving Credit Agreement [Member]
Maturities of long-term debt outstanding
2013	0
2014	0
2015	0
2016	0
2017	114.6
Thereafter	0
Senior Notes [Member]
Maturities of long-term debt outstanding
2013	0
2014	0
2015	0
2016	0
2017	75.0
Thereafter	50.0
Other Notes Payable [Member]
Maturities of long-term debt outstanding
2013	1.0
2014	0.5
2015	0.1
2016	0
2017	8.6
Thereafter	$ 0

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Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 40.0	$ 24.1
Accounts receivable, net	202.7	204.4
Inventories	153.8	144.3
Prepaid expenses	17.0	15.2
Deferred income taxes	7.0	4.1
Income taxes receivable	7.0	8.2
Other	2.0	6.2
Total current assets	429.5	406.5
Property, plant, equipment, and mineral rights and reserves:
Land	13.0	12.1
Mineral rights	48.6	52.5
Depreciable assets	552.0	484.7
Gross property, plant and equipment	613.6	549.3
Less: accumulated depreciation and depletion	311.7	275.8
Net property, plant and equipment	301.9	273.5
Goodwill	70.2	69.5
Intangible assets	33.9	36.9
Investment in and advances to affiliates and joint ventures	27.8	26.4
Available-for-sale securities	14.6	3.8
Deferred income taxes	7.4	8.1
Other assets	25.3	24.4
Total noncurrent assets	481.1	442.6
Total Assets	910.6	849.1
Current liabilities:
Accounts payable	51.1	56.5
Accrued income taxes	5.0	2.3
Accrued liabilities	58.4	59.2
Total current liabilities	114.5	118.0
Noncurrent liabilities:
Long-term debt	248.8	260.7
Pension liabilities	37.5	34.8
Deferred income taxes	12.8	12.7
Deferred compensation	9.4	8.9
Other long-term liabilities	22.5	19.1
Total noncurrent liabilities	331.0	336.2
Equity:
Common stock, par value $.01 per share, 100,000,000 shares authorized; 32,184,110 and 32,015,771 shares issued in 2012 and 2011, respectively	0.3	0.3
Additional paid in capital	105.1	94.3
Retained earnings	355.2	314.3
Accumulated other comprehensive income (loss)	0.8	(14.7)
Stockholders' equity before treasury stock	461.4	394.2
Less: Treasury stock (0 and 286,802 shares in 2012 and 2011, respectively)	0	3.4
Total AMCOL shareholders' equity	461.4	390.8
Noncontrolling interest	3.7	4.1
Total equity	465.1	394.9
Total liabilities and equity	$ 910.6	$ 849.1

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Segment, Geographic, and Market Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012 Segment	Dec. 31, 2011	Dec. 31, 2010
Segment, Geographic, and Market Information [Abstract]
Number of operating segments									5
Segment disclosure
Net sales	$ 239.2	$ 253.5	$ 257.5	$ 235.4	$ 234.1	$ 247.9	$ 243.2	$ 218.6	$ 985.6	$ 943.8	$ 826.3
Operating profit (loss)	17.5	28.1	31.1	21.4	20.4	25.8	20.9	19.0	98.1	86.1	69.0
Assets	910.6				849.1				910.6	849.1	807.3
Depreciation, depletion, and amortization									45.3	42.1	36.3
Capital expenditures									74.5	61.0	47.3
Research and development expenses									10.4	9.1	9.2
Performance materials [Member]
Segment disclosure
Net sales	114.6	121.0	131.1	125.2	120.4	122.2	118.3	115.8	491.9	476.7	416.5
Operating profit (loss)	14.3	18.0	22.5	21.5	18.1	19.5	13.4	16.1	76.3	67.1	53.5
Assets	454.0				430.8				454.0	430.8	410.4
Depreciation, depletion, and amortization									19.6	20.6	17.2
Capital expenditures									29.4	27.3	29.7
Research and development expenses									7.2	6.5	5.9
Construction technologies [Member]
Segment disclosure
Net sales	50.2	60.6	61.4	50.9	54.4	71.0	74.8	51.7	223.1	251.9	225.5
Operating profit (loss)	1.4	7.0	6.3	0.9	0.5	7.0	8.0	1.8	15.6	17.3	20.4
Assets	157.6				159.4				157.6	159.4	161.0
Depreciation, depletion, and amortization									5.5	5.4	5.4
Capital expenditures									8.3	8.3	2.6
Research and development expenses									2.3	2.3	2.3
Energy services [Member]
Segment disclosure
Net sales	71.8	69.1	61.1	55.3	53.9	50.1	45.1	45.6	257.3	194.7	153.6
Operating profit (loss)	8.3	7.9	7.7	4.8	6.1	5.8	3.7	5.7	28.7	21.3	13.7
Assets	225.8				194.7				225.8	194.7	172.5
Depreciation, depletion, and amortization									17.1	13.3	11.9
Capital expenditures									31.5	23.1	13.2
Research and development expenses									0.9	0.2	0.7
Transportation [Member]
Segment disclosure
Net sales									44.0	54.1	52.2
Operating profit (loss)									0.8	2.2	2.4
Assets	4.0				3.9				4.0	3.9	4.0
Depreciation, depletion, and amortization									0.1	0.1	0
Capital expenditures									0.1	0.2	0.1
Intersegment Sales [Member]
Segment disclosure
Net sales	(7.9)	(7.9)	(7.8)	(7.1)	(6.3)	(10.3)	(9.8)	(7.2)	(30.7)	(33.6)	(21.5)
Corporate [Member]
Segment disclosure
Operating profit (loss)	(6.6)	(5.0)	(5.7)	(6.0)	(4.6)	(7.2)	(4.9)	(5.1)	(23.3)	(21.8)	(21.0)
Assets	69.2				60.3				69.2	60.3	59.4
Depreciation, depletion, and amortization									3.0	2.7	1.8
Capital expenditures									5.2	2.1	1.7
Research and development expenses									$ 0	$ 0.1	$ 0.3

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Stock Compensation Plans (Details 4) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Summary of nonvested stock compensation awards
Number of Nonvested shares outstanding, Beginning balance (in shares)	660,059	635,726	721,442
Weighted Average Exercise Price Nonvested shares, Beginning balance (in dollars per share)	$ 9.80	$ 7.87	$ 7.46
Number of Nonvested shares outstanding, Granted (in shares)	417,420	379,425	390,750
Weighted Average Exercise Price Nonvested shares, Granted (in dollars per share)	$ 12.36	$ 11.42	$ 8.62
Number of Nonvested shares outstanding, Vested (in shares)	(317,635)	(311,630)	(453,744)
Weighted Average Exercise Price Nonvested shares, Vested (in dollars per share)	$ 8.99	$ 7.80	$ 8.50
Number of Nonvested shares outstanding, Forfeited (in shares)	(25,232)	(43,462)	(22,722)
Weighted Average Exercise Price Nonvested shares, Forfeited (in dollars per share)	$ 11.59	$ 9.77	$ 7.59
Number of Nonvested shares outstanding, Ending balance (in shares)	734,612	660,059	635,726
Weighted Average Exercise Price Nonvested shares, Ending balance (in dollars per share)	$ 11.55	$ 9.80	$ 7.87

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Consolidated Statements of Equity (USD $) In Millions, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2009	$ 0.3	$ 84.8	$ 271.6	$ 32.0	$ (14.3)	$ 1.0	$ 375.4
Balance (in shares) at Dec. 31, 2009	32,015,771
Net income (loss)			29.2			(0.7)	28.5
Cash dividends			(22.3)				(22.3)
Issuance of common stock and treasury shares pursuant to employee stock compensation plans		2.7			5.4		8.1
Tax benefit from employee stock compensation plans		0.3					0.3
Vesting of common stock in connection with employee stock compensation plans		4.6					4.6
Deconsolidation of variable interest entity						(1)	(1)
Purchase of noncontrolling interest shares		2.7					2.7
Other comprehensive income (loss)				(3.3)		1.0	(2.3)
Balance at Dec. 31, 2010	0.3	95.1	278.5	28.7	(8.9)	0.3	394.0
Balance (in shares) at Dec. 31, 2010	32,015,771
Net income (loss)			58.5			0	58.5
Cash dividends			(22.7)				(22.7)
Issuance of common stock and treasury shares pursuant to employee stock compensation plans		2.5			5.5		8.0
Tax benefit from employee stock compensation plans		0.6					0.6
Vesting of common stock in connection with employee stock compensation plans		4.9					4.9
Purchase of noncontrolling interest shares		(5.4)				(0.3)	(5.7)
Sale of subsidiary shares to noncontrolling interest		(3.4)		(1.4)		4.8	0
Other comprehensive income (loss)				(42.0)		(0.7)	(42.7)
Balance at Dec. 31, 2011	0.3	94.3	314.3	(14.7)	(3.4)	4.1	394.9
Balance (in shares) at Dec. 31, 2011	32,015,771
Net income (loss)			65.1			(0.2)	64.9
Cash dividends			(24.2)				(24.2)
Issuance of common stock and treasury shares pursuant to employee stock compensation plans (in shares)	168,339						168,339
Issuance of common stock and treasury shares pursuant to employee stock compensation plans		6.3			3.4		9.7
Tax benefit from employee stock compensation plans		(0.1)					(0.1)
Vesting of common stock in connection with employee stock compensation plans		4.5					4.5
Contribution from noncontrolling partner		0.1					0.1
Other comprehensive income (loss)				15.5		(0.2)	15.3
Balance at Dec. 31, 2012	$ 0.3	$ 105.1	$ 355.2	$ 0.8	$ 0	$ 3.7	$ 465.1
Balance (in shares) at Dec. 31, 2012	32,184,110

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Stock Compensation Plans (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Summary of all stock compensation plans
Intrinsic value of awards exercised during the year	$ 3.6	$ 5.1	$ 3.9
Fair value of awards vested during the year	2.9	2.4	3.9
Grant date fair value of awards granted during the year	$ 5.2	$ 4.3	$ 3.4

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Goodwill and Intangible Assets (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Intangibles not subject to amortization:
Gross Carrying Value	$ 71.8	$ 70.4
Accumulated Amortization	(37.9)	(33.5)
Net Carrying Value	33.9	36.9
Trademarks And Tradenames [Member]
Intangibles not subject to amortization:
Gross Carrying Value	6.1	6.1
Net Carrying Value	6.1	6.1
Trademarks [Member]
Schedule of the balance of intangible assets by segment and the activity occurring in the past two fiscal years
Gross Carrying Value	1.6	1.6
Accumulated Amortization	(1.6)	(1.5)
Net Carrying Value	0	0.1
Patents [Member]
Schedule of the balance of intangible assets by segment and the activity occurring in the past two fiscal years
Gross Carrying Value	6.9	6.9
Accumulated Amortization	(6.9)	(6.8)
Net Carrying Value	0	0.1
Customer related assets [Member]
Schedule of the balance of intangible assets by segment and the activity occurring in the past two fiscal years
Gross Carrying Value	47.1	47.1
Accumulated Amortization	(23.0)	(19.7)
Net Carrying Value	24.1	27.4
Non-compete agreements [Member]
Schedule of the balance of intangible assets by segment and the activity occurring in the past two fiscal years
Gross Carrying Value	2.2	2.2
Accumulated Amortization	(2.2)	(2.1)
Net Carrying Value	0	0.1
Developed technology [Member]
Schedule of the balance of intangible assets by segment and the activity occurring in the past two fiscal years
Gross Carrying Value	4.0	4.0
Accumulated Amortization	(2.4)	(2.0)
Net Carrying Value	1.6	2.0
Other [Member]
Schedule of the balance of intangible assets by segment and the activity occurring in the past two fiscal years
Gross Carrying Value	3.9	2.5
Accumulated Amortization	(1.8)	(1.4)
Net Carrying Value	2.1	1.1
Subtotal [Member]
Schedule of the balance of intangible assets by segment and the activity occurring in the past two fiscal years
Gross Carrying Value	65.7	64.3
Accumulated Amortization	(37.9)	(33.5)
Net Carrying Value	$ 27.8	$ 30.8

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Quarterly Results (Unaudited) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended												12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011		Sep. 30, 2011		Jun. 30, 2011		Mar. 31, 2011		Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Summary of Quarterly Results
Net sales	$ 239.2	$ 253.5	$ 257.5	$ 235.4	$ 234.1		$ 247.9		$ 243.2		$ 218.6		$ 985.6	$ 943.8	$ 826.3
Gross profit	61.9	69.8	74.7	64.7	62.2		70.4		61.8		57.9		271.1	252.3	214.2
Operating profit	17.5	28.1	31.1	21.4	20.4		25.8		20.9		19.0		98.1	86.1	69.0
Income (loss) from continuing operations	11.0	19.0	21.4	13.5	12.8		20.8		12.9		13.2		64.9	59.7	29.4
Income (loss) on discontinued operations	0	0	0	0	0		(1.3)		0.2		(0.1)		0	(1.2)	(0.9)
Net income (loss)	11.0	19.0	21.4	13.5	12.8		19.5		13.1		13.1		64.9	58.5	28.5
Net income (loss) attributable to noncontrolling interests	0	0	(0.3)	0.1	0		0		0		0		(0.2)	0	(0.7)
Net income (loss) attributable to AMCOL shareholders	11.0	19.0	21.7	13.4	12.8		19.5		13.1		13.1		65.1	58.5	29.2
Basic earnings per share attributable to AMCOL shareholders (in dollars per share)	$ 0.34	$ 0.59	$ 0.68	$ 0.42	$ 0.40	[1]	$ 0.61	[1]	$ 0.41	[1]	$ 0.42	[1]	$ 2.03	$ 1.85	$ 0.94
Diluted earnings per share attributable to AMCOL shareholders (in dollars per share)	$ 0.34	$ 0.59	$ 0.67	$ 0.41	$ 0.40	[1]	$ 0.61	[1]	$ 0.41	[1]	$ 0.41	[1]	$ 2.01	$ 1.82	$ 0.93
Performance Materials [Member]
Summary of Quarterly Results
Net sales	114.6	121.0	131.1	125.2	120.4		122.2		118.3		115.8		491.9	476.7	416.5
Gross profit	26.7	31.2	35.6	33.4	30.7		31.5		26.2		28.1
Operating profit	14.3	18.0	22.5	21.5	18.1		19.5		13.4		16.1		76.3	67.1	53.5
Construction Technologies [Member]
Summary of Quarterly Results
Net sales	50.2	60.6	61.4	50.9	54.4		71.0		74.8		51.7		223.1	251.9	225.5
Gross profit	15.1	20.1	18.7	14.6	14.6		21.8		22.2		15.3
Operating profit	1.4	7.0	6.3	0.9	0.5		7.0		8.0		1.8		15.6	17.3	20.4
Energy services [Member]
Summary of Quarterly Results
Net sales	71.8	69.1	61.1	55.3	53.9		50.1		45.1		45.6		257.3	194.7	153.6
Gross profit	18.8	17.7	19.2	15.4	15.4		15.4		11.7		13.5
Operating profit	8.3	7.9	7.7	4.8	6.1		5.8		3.7		5.7		28.7	21.3	13.7
Transportation [Member]
Summary of Quarterly Results
Net sales	10.5	10.7	11.7	11.1	11.7		14.9		14.8		12.7
Gross profit	1.1	1.1	1.2	1.2	1.3		1.8		1.6		1.4
Operating profit	0.1	0.2	0.3	0.2	0.3		0.7		0.7		0.5
Intersegment Sales/gross profit [Member]
Summary of Quarterly Results
Net sales	(7.9)	(7.9)	(7.8)	(7.1)	(6.3)		(10.3)		(9.8)		(7.2)		(30.7)	(33.6)	(21.5)
Gross profit	0.2	(0.3)	0	0.1	0.2		(0.1)		0.1		(0.4)
Corporate [Member]
Summary of Quarterly Results
Operating profit	$ (6.6)	$ (5.0)	$ (5.7)	$ (6.0)	$ (4.6)		$ (7.2)		$ (4.9)		$ (5.1)		$ (23.3)	$ (21.8)	$ (21.0)

[1] Earnings per share (EPS) for each quarter is computed using the weighted-average number of shares outstanding during the quarter, while EPS for the year is computed using the weighted-average number of shares outstanding during the year. Thus, the sum of the EPS for each of the four quarters may not equal the EPS for the year.

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Derivative Instruments and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2012

Derivative Instruments and Hedging Activities [Abstract]

Fair value of derivative instruments in the Balance Sheet

The following table sets forth the fair values of our derivative instruments and where they are recorded within our Consolidated Balance Sheet:

		Fair Value as of December 31,
Liability Derivatives	Balance Sheet Location	2012			2011
Derivatives designated as hedging instruments:
Interest rate swaps	Other long-term liabilities	$	(8.4	)	$	(9.0	)

Summary of cash flow hedges

Cash Flow Hedges

Derivatives in Cash Flow Hedging Relationships	Amount of Gain or (Loss) Recognized in OCI on Derivatives, net of tax
	(Effective Portion)
	Year Ended December 31,
	2012		2011
Interest rate swaps	$	0.6	$	(1.5	)

Changes in fair value of foreign exchange contracts

We have not designated these contracts for hedge accounting treatment and therefore, changes in fair value of these contracts are recorded in earnings as follows:

Derivatives Not Designated as Hedging Instruments	Location of Gain or (Loss) Recognized in	Amount of Gain or (Loss) Recognized in Income on Derivatives
	Income on	Year Ended December 31,
	Derivatives	2012			2011			2010
Foreign exchange derivative instruments	Other, net	$	(0.4	)	$	(0.5	)	$	(0.8	)

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Income Taxes (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income from continuing operations before income taxes and income (loss) from affiliates and joint ventures
Domestic	$ 56.4	$ 53.8	$ 43.6
Foreign	27.9	21.5	17.1
Income before income taxes and income (loss) from affiliates and joint ventures	$ 84.3	$ 75.3	$ 60.7

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Employee Benefit Plans

12 Months Ended

Dec. 31, 2012

Employee Benefit Plans [Abstract]

Employee Benefit Plans

(14)         Employee Benefit Plans

We have a defined benefit pension plan covering substantially all of our domestic employees hired before January 1, 2004. The benefits are based upon years of service and qualifying compensation. Our funding is calculated using the actuarially determined unit credit cost method. Contributions are intended to provide not only for benefits attributed to services to date, but also for those expected to be earned in the future.

In addition to the qualified plan, we sponsor a supplementary pension plan (SERP) that provides benefits in excess of qualified plan limitations for certain employees.

The following tables set forth our pension obligations and funded status at December 31:

	Pension Benefits
	Defined Benefit Pension Plan						Supplementary Pension Plan
	2012			2011			2012			2011
Change in benefit obligations:
Beginning projected benefit obligation	$	58.1		$	48.0		$	11.6		$	9.2
Service cost		1.7			1.5			0.3			0.2
Interest cost		2.7			2.6			0.5			0.5
Actuarial (gain)/loss		2.6			7.2			1.2			2.0
Benefits paid		(1.3	)		(1.2	)		(0.4	)		(0.3	)
Ending projected benefit obligation		63.8			58.1			13.2			11.6
Change in plan assets:
Beginning fair value		34.5			35.8			-			-
Actual return		4.3			(1.5	)					-
Company contribution		1.7			1.5			0.4			0.4
Benefits paid		(1.4	)		(1.3	)		(0.4	)		(0.4	)
Ending fair value		39.1			34.5			-			-
Funded status of the plan		(24.7	)		(23.6	)		(13.2	)		(11.6	)

The liabilities associated with our SERP plan and our defined benefit pension plan (net of the defined benefit plan assets) are included within Pension liabilities in our Consolidated Balance Sheet. Included within Other Noncurrent Assets within our Consolidated Balance Sheet are invested assets for the benefit of the employees covered by the supplemental pension plan.

Pension cost in each of the following years was comprised of:

	Defined Benefit Pension Plan									Supplementary Pension Plan
	2012			2011			2010			2012		2011		2010
Service cost – benefits earned during the year	$	1.7		$	1.5		$	1.4		$	0.3	$	0.2	$	0.3
Interest cost on accumulated benefit obligation		2.7			2.6			2.4			0.5		0.5		0.5
Expected return on plan assets		(2.6	)		(2.9	)		(2.6	)		-		-		-
Net amortization and deferral		1.0			0.1			0.1			0.2		0.1		0.1
Net periodic pension cost		2.8			1.3			1.3			1.0		0.8		0.9

The following table summarizes the assumptions used in determining our pension obligations at the end of each of our last two years:

	Defined Benefit Pension Plan						Supplementary Pension Plan
	2012			2011			2012			2011
Discount rate		4.17	%		4.70	%		4.00	%		4.63	%
Rate of compensation increase		3.00	%		4.00	%		3.00	%		4.00	%
Long-term rate of return on plan assets		7.50	%		7.50	%		N/A			N/A

The following table summarizes the assumptions used in determining our net periodic benefit cost in the years ended December 31:

	Defined Benefit Pension Plan									Supplementary Pension Plan
	2012			2011			2010			2012			2011			2010
Discount rate		4.70	%		5.51	%		5.91	%		4.63	%		5.36	%		5.95	%
Rate of compensation increase		4.00	%		4.00	%		4.00	%		4.00	%		4.00	%		4.00	%
Long-term rate of return on plan assets		7.50	%		8.00	%		8.25	%		N/A			N/A			N/A

We expect to contribute up to $1.2 to the defined benefit pension plan in 2013. The accumulated benefit obligation (ABO) for our defined benefit pension plan was $56.4 and $49.3 at December 31, 2012 and 2011, respectively. The ABO for our supplementary pension plan was $9.4 and $8.5 at December 31, 2012 and 2011, respectively.

The estimated future benefit payments contemplated under these plans, reflecting expected future service, as appropriate, are presented in the following table:

	Defined Benefit Pension Plan		Supplementary Pension Plan
2013	$	1.8	$	0.4
2014		2.1		0.4
2015		2.3		0.4
2016		2.5		0.5
2017		2.8		0.7
2018 through 2022		17.5		4.0

Note 3 shows the amounts included within accumulated other comprehensive income as of December 31, 2012 and 2011 that have not yet been recognized as components of net periodic benefit cost. Of these balances at December 31, 2012, the amounts expected to be amortized in the next fiscal year are $0.1 and $1.2 for the unrecognized prior service cost and unrecognized net actuarial loss, respectively. Excluding the effect of income taxes, the amounts recognized within other comprehensive income and the prior service cost for 2012 and 2011, are as follows:

	2012			2011
Recognized in Other Comprehensive Income:
Net actuarial loss (gain)	$	2.1		$	13.7
Amortization of net actuarial loss (gain)		(1.1	)		(0.1	)
Amortization of prior service cost (credit)		(0.1	)		(0.1	)
Total change in other comprehensive income		0.9			13.5

Defined Benefit Pension Plan

Fair values of our defined benefit pension plan assets at December 31, by asset category, are as follows:

	Fair Value Measurements as of December 31, 2012
			Quoted Prices in Active Markets for Identical Assets		Significant Observable Inputs		Significant Unobservable Inputs
	Total		Level 1		Level 2		Level 3
Short term investment funds	$	0.6	$	-	$	0.6	$	-
Equity securities:
US equity securities		14.0		1.4		12.6		-
International equity securities		9.5		4.5		5.0		-
AMCOL International common stock		2.1		2.1		-		-
Fixed income securities and bonds
Governmental agencies		0.7		-		0.7		-
Corporate bonds		5.4		5.4		-		-
Guaranteed investment contracts		1.3		-		1.3		-
Other investments
Real estate index funds		0.8		-		0.8		-
Commodities linked funds		0.7		0.7		-		-
Hedge funds		4.0		-		-		4.0
Total		39.1		14.1		21.0		4.0

	Fair Value Measurements as of December 31, 2011
			Quoted Prices in Active Markets for Identical Assets		Significant Observable Inputs		Significant Unobservable Inputs
	Total		Level 1		Level 2		Level 3
Short term investment funds	$	0.7	$	-	$	0.7	$	-
Equity securities:
US equity securities		11.2		-		11.2		-
International equity securities		6.0		2.0		4.0		-
AMCOL International common stock		1.9		1.9		-		-
Fixed income securities and bonds
Governmental agencies		1.0		1.0		-		-
Corporate bonds		5.0		5.0		-		-
Guaranteed investment contracts		2.5		-		2.5		-
Other investments
Real estate index funds		0.6		-		0.6		-
Commodities linked funds		1.7		1.7		-		-
Hedge funds		3.9		-		-		3.9
Total		34.5		11.6		19.0		3.9

Assets classified as Level 1 are valued using quoted prices on the major stock exchange on which individual assets are traded. Our Level 2 assets are valued using net asset value. The net asset value is quoted on a private market that is not active; however, the unit price is based on underlying investments that are traded on an active market. Our Level 3 assets are estimated at fair value based on the most recent financial information available for the underlying securities, which are not traded on active market, and represents significant unobservable input.

The following is a reconciliation of changes in fair value measurements of plan assets using significant unobservable inputs (Level 3):

	Hedge Funds
Beginning balance at December 31, 2010	$	2.2
Purchases, sales, and settlements		1.8
Actual return on plan assets still held at reporting date		(0.1	)
Ending balance at December 31, 2011		3.9
Purchases, sales, and settlements		-
Actual return on plan assets still held at reporting date		0.1
Ending balance at December 31, 2012		4.0

We employ a total return investment approach whereby we use a mix of equities and fixed income investments to maximize the long-term return of plan assets with a prudent level of risk. Risk tolerance is established through careful consideration of plan liabilities, plan funded status, and our corporate financial condition. The investment portfolio contains a diversified blend of equity, fixed-income investments and alternative investments. The investment objectives emphasize maximizing returns consistent with ensuring that sufficient assets are available to meet liabilities, and minimizing corporate cash contributions. Our defined benefit plan assets are managed so as to include investments that balance income and capital appreciation.

Our defined benefit plan has a target range for different types of investments: equity securities (between 41% and 69%), fixed income securities and bonds (between 18% and 31%), alternative investments (between 5% and 23%), and cash (between 0% and 10%). This allocation takes into account factors such as the average age of employees covered by the Plan (benefit obligations) as well as overall market conditions. Interim portfolio reviews result in investment allocations being evaluated at least twice a year by the Pension Committee and rebalancing takes place as needed. Equity investments are diversified across U.S. and non-U.S. stocks, as well as growth, value, and small and large capitalizations. Fixed income securities and bonds include both government and corporate investment vehicles. These include a series of laddered debt securities as well as bond funds.

Historical markets are studied and long-term historical relationships between equities and fixed-income are preserved consistent with the widely accepted capital market principle that assets with higher volatility generate a greater return over the long run. Current market factors such as inflation and interest rates are evaluated before long-term capital market assumptions are determined. The long-term rate of return for plan assets is established via a building block approach with proper consideration of diversification and rebalancing.

Defined Contribution Plan

Employees hired on or after January 1, 2004 do not participate in our defined benefit pension plan or SERP. Instead, they participate in a defined contribution plan whereby we make a retirement contribution into the employee's savings plan equal to 3% of their compensation. We made total contributions to this plan of $1.9, $1.8 and $1.2 in 2012, 2011 and 2010, respectively.

401(k) Savings Plan

We also have a savings plan for our U.S. personnel. In 2012, we made a contribution in an amount equal to an employee's contributions up to a maximum of 4% of the employee's annual earnings. We make contributions to this plan using either cash or our own common stock which we purchase in the open market. Our contributions under the savings plan were $3.8 in 2012, $3.4 in 2011 and $2.8 in 2010.

Other

We also have a deferred compensation plan and a 401(k) restoration plan for our executives.

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value Measurements [Abstract]

Summary of fair value instruments

The following table categorizes our fair value instruments according to the assumptions used to calculate those values at the end of each of the past two years:

				Fair Value Measurements Using
	Asset /			Quoted Prices in					Significant
Description	(Liability)			Active Markets for		Significant Other			Unobservable
	Balance at			Identical Assets		Observable Inputs			Inputs
	12/31/2012			(Level 1)		(Level 2)			(Level 3)
Interest rate swaps	$	(8.4	)	$	-	$	(8.4	)	$	-
Available-for-sale securities		14.6			14.6		-			-
Deferred compensation plan assets		9.4			-		9.4			-
Supplementary pension plan assets		8.2			-		8.2			-

				Fair Value Measurements Using
	Asset /			Quoted Prices in					Significant
Description	(Liability)			Active Markets for		Significant Other			Unobservable
	Balance at			Identical Assets		Observable Inputs			Inputs
	12/31/2011			(Level 1)		(Level 2)			(Level 3)
Interest rate swaps	$	(9.0	)	$	-	$	(9.0	)	$	-
Available-for-sale securities		3.8			3.8		-			-
Deferred compensation plan assets		8.0			-		8.0			-
Supplementary pension plan assets		7.6			-		7.6			-

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Contingencies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 Lawsuit
Loss Contingencies [Line Items]
Lawsuit alleges damages	$ 28
Contingencies (Textual) [Abstract]
Number of lawsuits alleging damages	2
Area of operation	Louisiana
Other [Member]
Loss Contingencies [Line Items]
Lawsuit alleges damages	$ 9

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Contingencies

12 Months Ended

Dec. 31, 2012

Contingencies [Abstract]

Contingencies

(16)         Contingencies

We are party to a number of lawsuits arising in the normal course of business. Our energy services segment is also party to two lawsuits alleging damages caused by our coiled tubing operations in Louisiana; one lawsuit alleges damages of $28 million and the other of $9 million. We do not believe that any of the aforementioned pending litigation will have a material adverse effect on our consolidated financial statements.

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Income Taxes (Details 4) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Effective Income Tax Rate Reconciliation
Provision for income taxes at U.S. statutory rates	$ 29.5	$ 26.3	$ 21.2
Percentage of provision for income taxes at U.S. statutory rates (in hundredths)	35.00%	35.00%	35.00%
Increase (decrease) in taxes resulting from:
Percentage depletion	(5.0)	(4.9)	(3.9)
Percent of pretax income, Percentage depletion (in hundredths)	(6.00%)	(6.50%)	(6.40%)
State taxes, net of federal benefit	1.7	2.2	1.5
Percent of pretax income, State taxes, net of federal benefit (in hundredths)	2.10%	2.90%	2.60%
Foreign tax rates	(3.9)	(1.0)	(0.9)
Percent of pretax income, Foreign tax rates (in hundredths)	(4.60%)	(1.40%)	(1.50%)
Change in reserve for tax uncertainties	0	(0.7)	0.1
Percent of pretax income, Change in reserve for tax uncertainties (in hundredths)	0.00%	(0.90%)	0.10%
Domestic manufacturing deduction	(1.6)	(0.8)	(0.5)
Percent of pretax income, domestic manufacturing deduction (in hundredths)	(1.90%)	(1.10%)	(0.80%)
Change in state tax rates	(1.9)	0	(0.1)
Percent of pretax income, Change in state tax rates (in hundredths)	(2.20%)	0.00%	(0.20%)
Foreign witholding tax	1.6	1.0	0.6
Percent of pretax income, foreign witholding tax (in hundredths)	2.00%	1.30%	1.00%
Foreign tax credits	(3.2)	(2.4)	(2.2)
Percent of pretax income, Foreign tax credits (in hundredths)	(3.80%)	(3.10%)	(3.60%)
Changes to valuation allowance	1.9	(0.2)	3.4
Percent of pretax income, Changes to valuation allowance (in hundredths)	2.20%	(0.30%)	5.60%
Tax from foreign disregarded entities	0.4	0.3	1.4
Percent of pretax income, Tax from foreign disregarded entities (in hundredths)	0.50%	0.30%	2.20%
Other	3.8	1.0	(0.3)
Percent of pretax income, Other (in hundredths)	4.30%	1.40%	(0.60%)
Income tax expense (benefit), continuing operations, total	$ 23.3	$ 20.8	$ 20.3
Percent of pretax income, Effective tax rates related to income from continuing operations before income taxes (in hundredths)	27.60%	27.60%	33.40%

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Consolidated Statements of Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Dividends declared per share (in dollars per share)	$ 0.76	$ 0.72	$ 0.72
Issuance of common stock (in shares)	168,339
Treasury stock, shares issued (in shares)	286,802	482,144	472,917
Common Stock [Member]
Issuance of common stock (in shares)	168,339

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Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Consolidated Balance Sheets [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	32,184,110	32,015,771
Treasury stock, shares (in shares)	0	286,802

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Derivative Instruments and Hedging Activities

12 Months Ended

Dec. 31, 2012

Derivative Instruments and Hedging Activities [Abstract]

Derivative Instruments and Hedging Activities

(9)           Derivative Instruments and Hedging Activities

As a multinational corporation with operations throughout the world, we are subject to certain market risks. We use a variety of practices to manage these market risks, including, when considered appropriate, derivative financial instruments. We use derivative financial instruments only for risk management and not for trading or speculative purposes.

The following table sets forth the fair values of our derivative instruments and where they are recorded within our Consolidated Balance Sheet:

		Fair Value as of December 31,
Liability Derivatives	Balance Sheet Location	2012			2011
Derivatives designated as hedging instruments:
Interest rate swaps	Other long-term liabilities	$	(8.4	)	$	(9.0	)

Cash Flow Hedges

Derivatives in Cash Flow Hedging Relationships	Amount of Gain or (Loss) Recognized in OCI on Derivatives, net of tax
	(Effective Portion)
	Year Ended December 31,
	2012		2011
Interest rate swaps	$	0.6	$	(1.5	)

We use interest rate swaps to manage variable interest rate risk on debt securities. Interest rate differentials are paid or received on these arrangements over the life of the swap. As of December 31, 2012 and 2011, we had an interest rate swap outstanding which effectively hedges the variable interest rate on $30 of our senior notes to a fixed rate of 5.6% per annum. We also had other interest rate swaps outstanding which effectively hedge the variable interest rate on $33 of our borrowings as of December 31, 2012 and 2011, under our revolving credit agreement, to a fixed rate of 3.3% per annum, plus credit spread.

Other

We are exposed to potential gains or losses from foreign currency fluctuations affecting net investments and earnings denominated in foreign currencies. We are particularly sensitive to currency exchange rate fluctuations for the following currencies: British pound sterling (GBP), Chinese renminbi (CYN), Danish kroner (DKK), Euro, Indian rupee (INR), Malaysian ringgit (MYR), Norwegian krone (NOK), Polish zloty (PLN), South African Rand (ZAR), Swiss franc (SEK), Thai baht (THB), and Turkish lira (TRY). When considered appropriate, we enter into foreign exchange derivative contracts to mitigate the risk of fluctuations on these exposures.

We have not designated these contracts for hedge accounting treatment and therefore, changes in fair value of these contracts are recorded in earnings as follows:

Derivatives Not Designated as Hedging Instruments	Location of Gain or (Loss) Recognized in	Amount of Gain or (Loss) Recognized in Income on Derivatives
	Income on	Year Ended December 31,
	Derivatives	2012			2011			2010
Foreign exchange derivative instruments	Other, net	$	(0.4	)	$	(0.5	)	$	(0.8	)

We did not have any foreign exchange derivative instruments outstanding as of December 31, 2012 or 2011.

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Stock Compensation Plans (Details 1) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
1998 Long-Term Incentive Plan [Member]
Summary of changes in options outstanding
Number of Shares outstanding, Beginning balance (in shares)	169,051	413,710	720,791
Weighted Average Exercise Price outstanding, Beginning balance (in dollars per share)	$ 21.82	$ 19.88	$ 18.19
Number of Shares outstanding, Granted (in shares)	0	0	0
Weighted Average Exercise Price outstanding, Granted (in dollars per share)	$ 0	$ 0	$ 0
Number of Shares outstanding, Exercised (in shares)	(165,401)	(243,659)	(306,548)
Weighted Average Exercise Price outstanding, Exercised (in dollars per share)	$ 21.80	$ 18.54	$ 15.93
Number of Shares outstanding, Forfeited (in shares)		0	0
Weighted Average Exercise Price outstanding, Forfeited (in dollars per share)		$ 0	$ 0
Number of Shares outstanding, Expired (in shares)	(3,650)	(1,000)	(533)
Weighted Average Exercise Price outstanding, Expired (in dollars per share)	$ 22.57	$ 14.79	$ 4.76
Number of Shares outstanding, Ending balance (in shares)	0	169,051	413,710
Weighted Average Exercise Price outstanding, Ending balance (in dollars per share)		$ 21.82	$ 19.88
Number of Shares Exercisable, Ending balance (in shares)		169,051	413,710
Weighted Average Exercise Price Exercisable, Ending balance (in dollars per share)		$ 21.82	$ 19.88
2006 Long-Term Incentive Plan [Member]
Summary of changes in options outstanding
Number of Shares outstanding, Beginning balance (in shares)	1,189,012	1,389,598	1,060,057
Weighted Average Exercise Price outstanding, Beginning balance (in dollars per share)	$ 22.91	$ 23.02	$ 22.89
Number of Shares outstanding, Granted (in shares)	0	0	390,750
Weighted Average Exercise Price outstanding, Granted (in dollars per share)	$ 0	$ 0	$ 23.24
Number of Shares outstanding, Exercised (in shares)	(297,528)	(170,998)	(29,862)
Weighted Average Exercise Price outstanding, Exercised (in dollars per share)	$ 23.11	$ 24.04	$ 21.62
Number of Shares outstanding, Forfeited (in shares)	(3,125)	(20,087)	(22,722)
Weighted Average Exercise Price outstanding, Forfeited (in dollars per share)	$ 23.24	$ 20.48	$ 19.92
Number of Shares outstanding, Expired (in shares)	(5,250)	(9,501)	(8,625)
Weighted Average Exercise Price outstanding, Expired (in dollars per share)	$ 23.89	$ 23.64	$ 29.62
Number of Shares outstanding, Ending balance (in shares)	883,109	1,189,012	1,389,598
Weighted Average Exercise Price outstanding, Ending balance (in dollars per share)	$ 22.84	$ 22.91	$ 23.02
Number of Shares Exercisable, Ending balance (in shares)	781,574	885,003	754,622
Weighted Average Exercise Price Exercisable, Ending balance (in dollars per share)	$ 22.79	$ 23.67	$ 24.86
2010 Long-Term Incentive Plan [Member]
Summary of changes in options outstanding
Number of Shares outstanding, Beginning balance (in shares)	356,050
Weighted Average Exercise Price outstanding, Beginning balance (in dollars per share)	$ 30.66	$ 0
Number of Shares outstanding, Granted (in shares)	417,420	379,425
Weighted Average Exercise Price outstanding, Granted (in dollars per share)	$ 29.80	$ 30.66
Number of Shares outstanding, Exercised (in shares)	(567)	0
Weighted Average Exercise Price outstanding, Exercised (in dollars per share)	$ 30.66	$ 0
Number of Shares outstanding, Forfeited (in shares)	(22,107)	(23,375)
Weighted Average Exercise Price outstanding, Forfeited (in dollars per share)	$ 30.12	$ 30.66
Number of Shares outstanding, Expired (in shares)	(500)	0
Weighted Average Exercise Price outstanding, Expired (in dollars per share)	$ 30.66	$ 0
Number of Shares outstanding, Ending balance (in shares)	750,296	356,050
Weighted Average Exercise Price outstanding, Ending balance (in dollars per share)	$ 30.20	$ 30.66
Number of Shares Exercisable, Ending balance (in shares)	117,219	0
Weighted Average Exercise Price Exercisable, Ending balance (in dollars per share)	$ 30.66	$ 0

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Employee Benefit Plans (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Plan Disclosure [Line Items]
Percentage of contribution (in hundredths)	3.00%
Employee Benefit Plans (Textual) [Abstract]
Contribution to defined benefit pension plan	$ 1.2
Accumulated benefit obligation for defined benefit pension plan	56.4	49.3
Accumulated benefit obligation for supplementary pension plan	9.4	8.5
Amount expected to be amortized in the next fiscal year for the unrecognized prior service cost	0.1
Amount expected to be amortized in the next fiscal year for the unrecognized net actuarial loss	1.2
Target allocation minimum percentage in cash (in hundredths)	0.00%
Target allocation maximum percentage in cash (in hundredths)	10.00%
Evaluation of investment allocations	at least twice a year by the Pension Committee
Company contribution	1.9	1.8	1.2
Equity Securities [Member]
Employee Benefit Plans (Textual) [Abstract]
Target allocation minimum percentage for investments (in hundredths)	41.00%
Target allocation maximum percentage for investments (in hundredths)	69.00%
Fixed Income Securities [Member]
Employee Benefit Plans (Textual) [Abstract]
Target allocation minimum percentage for investments (in hundredths)	18.00%
Target allocation maximum percentage for investments (in hundredths)	31.00%
Alternative investments [Member]
Employee Benefit Plans (Textual) [Abstract]
Target allocation minimum percentage for investments (in hundredths)	5.00%
Target allocation maximum percentage for investments (in hundredths)	23.00%
401(k) Savings Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of contribution (in hundredths)	4.00%
Company contribution	$ 3.8	$ 3.4	$ 2.8

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Document and Entity Information (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Mar. 27, 2013	Jun. 30, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	AMCOL INTERNATIONAL CORP
Entity Central Index Key	0000813621
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 715.80
Entity Common Stock, Shares Outstanding		32,287,200
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2012

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Fair Value Measurements

12 Months Ended

Dec. 31, 2012

Fair Value Measurements [Abstract]

Fair Value Measurements

(10)         Fair Value Measurements

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Our calculation of the fair value of derivative instruments includes several assumptions. The fair value hierarchy prioritizes these input assumptions in the following three broad levels:

Level 1 – Valuation is based on quoted prices (unadjusted) in active markets for identical assets or liabilities that the company has the ability to access at the measurement date.

Level 2 – Valuation is based on quoted prices for similar assets or liabilities in active market, quoted prices for identical or similar assets or liabilities in markets that are not active and model based valuations for which all significant inputs are observable in the market.

Level 3 – Valuation is based on model based techniques that use unobservable inputs for the asset or liability. These inputs reflect our own views about the assumption market participants would use in pricing the asset or liability.

The following table categorizes our fair value instruments according to the assumptions used to calculate those values at the end of each of the past two years:

				Fair Value Measurements Using
	Asset /			Quoted Prices in					Significant
Description	(Liability)			Active Markets for		Significant Other			Unobservable
	Balance at			Identical Assets		Observable Inputs			Inputs
	12/31/2012			(Level 1)		(Level 2)			(Level 3)
Interest rate swaps	$	(8.4	)	$	-	$	(8.4	)	$	-
Available-for-sale securities		14.6			14.6		-			-
Deferred compensation plan assets		9.4			-		9.4			-
Supplementary pension plan assets		8.2			-		8.2			-

				Fair Value Measurements Using
	Asset /			Quoted Prices in					Significant
Description	(Liability)			Active Markets for		Significant Other			Unobservable
	Balance at			Identical Assets		Observable Inputs			Inputs
	12/31/2011			(Level 1)		(Level 2)			(Level 3)
Interest rate swaps	$	(9.0	)	$	-	$	(9.0	)	$	-
Available-for-sale securities		3.8			3.8		-			-
Deferred compensation plan assets		8.0			-		8.0			-
Supplementary pension plan assets		7.6			-		7.6			-

Interest rate swaps are valued using discounted cash flows. The key input used is the LIBOR swap rate, which is observable at commonly quoted intervals for the full term of the swap. Available-for-sale securities are valued using quoted market prices. Deferred compensation and supplementary pension plan assets are valued using quoted prices for similar assets in active markets.

The carrying value of our long-term debt approximates its fair value as the interest rate is near the current market rate yield. The fair value of our long-term debt is determined using current applicable rates for similar instruments as of the balance sheet date. The fair value of long-term debt for disclosure purpose is a Level 3 liability within the fair value category.

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Noncontrolling Interest (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended		1 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Jan. 31, 2011 Volclay South Africa (Proprietary) Limited [Member]	Feb. 28, 2011 Vengawave (Proprietary) Limited [Member]
Noncontrolling Interest (Textual) [Abstract]
Remaining noncontrolling interest acquired	$ 5.7	$ (2.7)	$ 5.6
Percentage of interest sold (in hundredths)				26.00%

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Employee Benefit Plans (Details 7) (Hedge Funds [Member], Significant Unobservable Inputs (Level 3) [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Hedge Funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Reconciliation of changes in fair value measurements of plan assets
Beginning fair value	$ 3.9	$ 2.2
Purchases, sales, and settlements	0	1.8
Actual return on plan assets still held at reporting date	0.1	(0.1)
Ending fair value	$ 4.0	$ 3.9

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Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net sales
Net sales of goods	$ 704.9	$ 709.3	$ 628.8
Service revenues	258.6	206.3	166.8
Freight revenues	22.1	28.2	30.7
Net sales	985.6	943.8	826.3
Cost of sales
Cost of goods sold	516.2	512.5	461.2
Cost of service revenues	180.8	157.0	126.0
Cost of freight revenues	17.5	22.0	24.9
Cost of sales	714.5	691.5	612.1
Gross profit	271.1	252.3	214.2
Selling, general and administrative expenses	173.0	166.2	145.2
Operating profit	98.1	86.1	69.0
Other income (expense):
Interest expense, net	(10.4)	(11.0)	(9.6)
Other, net	(3.4)	0.2	1.3
Total other income (expense), net	(13.8)	(10.8)	(8.3)
Income before income taxes and income (loss) from affiliates and joint ventures	84.3	75.3	60.7
Income tax expense	23.3	20.8	20.3
Income before income (loss) from affiliates and joint ventures	61.0	54.5	40.4
Income (loss) from affiliates and joint ventures	3.9	5.2	(11.0)
Income (loss) from continuing operations	64.9	59.7	29.4
Discontinued Operations
Income (loss) on discontinued operations	0	(1.2)	(0.9)
Net income (loss)	64.9	58.5	28.5
Net income (loss) attributable to noncontrolling interests	(0.2)	0	(0.7)
Net income (loss) attributable to AMCOL shareholders	65.1	58.5	29.2
Basic earnings (loss) per share
Continuing operations (in dollars per share)	$ 2.03	$ 1.89	$ 0.97
Discontinued operations (in dollars per share)	$ 0	$ (0.04)	$ (0.03)
Net income (in dollars per share)	$ 2.03	$ 1.85	$ 0.94
Diluted earnings (loss) per share
Continuing operations (in dollars per share)	$ 2.01	$ 1.86	$ 0.96
Discontinued operations (in dollars per share)	$ 0	$ (0.04)	$ (0.03)
Net income (in dollars per share)	$ 2.01	$ 1.82	$ 0.93
Amounts attributable to AMCOL shareholders
Income from continuing operations, net of tax	65.1	59.7	30.1
Discontinued operations, net of tax	0	(1.2)	(0.9)
Net income	$ 65.1	$ 58.5	$ 29.2
Dividends declared per share (in dollars per share)	$ 0.76	$ 0.72	$ 0.72

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Property, Plant, Equipment and Mineral Rights and Reserves

12 Months Ended

Dec. 31, 2012

Property, Plant, Equipment and Mineral Rights and Reserves [Abstract]

Property, Plant, Equipment and Mineral Rights and Reserves

(4)           Property, Plant, Equipment and Mineral Rights and Reserves

Property, plant, equipment and mineral rights and reserves consisted of the following:

	December 31,
	2012		2011
Mineral rights and reserves	$	48.6	$	52.5
Land		13.0		12.1
Buildings and improvements		104.9		97.5
Machinery and equipment		414.5		362.0
Construction in progress		32.6		25.2
		613.6		549.3

The range of useful lives to depreciate plant and equipment is as follows:

Buildings and improvements	3-50 years
Machinery and equipment	1-24 years

Depreciation and depletion were charged to income as follows:

	2012		2011		2010
Depreciation expense	$	39.3	$	35.0	$	30.1
Depletion expense		1.6		2.6		1.2
		40.9		37.6		31.3

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Balance Sheet Related Information

12 Months Ended

Dec. 31, 2012

Balance Sheet Related Information [Abstract]

Balance Sheet Related Information

(3)          Balance Sheet Related Information

We are exposed to credit risk on certain assets, primarily accounts receivable. We provide credit to customers in the ordinary course of business and perform ongoing credit evaluations. Concentrations of credit risk with respect to trade receivables are limited due to the large number of customers comprising our customer base. We believe our allowance for doubtful accounts is sufficient to cover customer credit risks. The allowance for doubtful accounts as of and the activity for the years ended December 31 was as follows:

	2012			2011			2010
Balance at the beginning of the year	$	7.5		$	6.6		$	6.3
Charged to expense (income)		5.3			3.6			2.4
Write-offs and currency translation adjustments		(1.8	)		(2.7	)		(2.1	)
Balance at the end of the year		11.0			7.5			6.6

Inventories at December 31 consisted of:

	2012		2011
Crude stockpile inventories	$	60.8	$	53.4
In-process and finished goods inventories		70.5		65.0
Other raw material, container, and supplies inventories		22.5		25.9
		153.8		144.3

Included within Other raw material, container, and supplies inventories in the table above is our reserve for slow moving and obsolete inventory. The balance of this reserve as of and the activity for the years ended December 31 was as follows:

	2012			2011			2010
Balance at the beginning of the year	$	2.1		$	2.7		$	2.1
Charged to costs and expenses		2.1			2.1			4.0
Disposals and currency translation adjustments		(1.6	)		(2.7	)		(3.4	)
Balance at the end of the year		2.6			2.1			2.7

The following table presents our reclamation liability at the end of and changes during each of the years presented:

	2012			2011
Balance at beginning of the year	$	9.3		$	8.0
Settlement of obligations		(3.9	)		(4.3	)
Liabilities incurred and accretion expense		4.2			6.0
Currency translation adjustments		(0.1	)		(0.4	)
Balance at the end of the year		9.5			9.3

Accrued liabilities at December 31 consisted of:

	2012		2011
Bonus	$	11.5	$	9.7
Employee benefits and related costs		10.8		10.2
Dividends payable		6.4		5.7
Other		29.7		33.6
		58.4		59.2

Accumulated other comprehensive income (loss) at December 31 was comprised of the following components:

	2012			2011
Cumulative foreign currency translation	$	6.0		$	0.6
Prior service cost on pension plans (net of tax benefit of $0.1 in 2012 and $0.1 in 2011)		(0.2	)		(0.2	)
Net actuarial loss on pension plans (net of tax benefit of $7.8 in 2012 and $6.9 in 2011)		(12.0	)		(11.9	)
Unrealized loss on interest rate swap agreement (net of tax benefit of $3.3 in 2012 and $3.3 in 2011)		(5.1	)		(5.7	)
Unrealized gain on available-for-sale securities (net of tax expense of $1.2 in 2012 and $0 in 2011)		12.1			2.5
		0.8			(14.7	)

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Stock Compensation Plans

12 Months Ended

Dec. 31, 2012

Stock Compensation Plans [Abstract]

Stock Compensation Plans

(15)         Stock Compensation Plans

Nonqualified stock options, incentive stock options, and stock appreciation rights

We provide compensation to certain employees using stock based awards. For purposes of calculating compensation cost, we estimate the fair value of each award on the date of grant using the Black-Scholes option-pricing model. We used the following assumptions in calculating the fair value of awards granted in each of the following years:

	2012			2011			2010
Risk-free interest rate		1.0	%		2.2	%		2.7	%
Expected life of option in years		5.39			5.51			5.61
Expected dividend yield of stock		2.3	%		2.5	%		3.2	%
Expected volatility of stock price		56.4	%		49.0	%		50.8	%
Weighted-average per share fair value of options granted	$	12.36		$	11.42		$	8.62

1998 Long-Term Incentive Plan

This plan provides for the award of incentive stock options, nonqualified stock options, restricted stock, stock appreciation rights and phantom stock. We reserved 3,900,000 shares of our common stock for issuance to our officers, directors and key employees. Different terms and conditions apply to each form of award made under the plan. Awards granted since 2003 vest ratably over a three year period and expire six years after the date of grant, except in the event of termination, retirement or death of the optionee or a change in control of the Company. Options awarded under this plan prior to 2003 generally vest 40% after two years and continue to vest at the rate of 20% per year for each year thereafter until they are fully vested. These options are exercisable as they vest and expire 10 years after the date of grant, except in the event of termination, retirement or death of the optionee or a change in control of the Company.

Changes in options outstanding are summarized as follows:

	December 31, 2012					December 31, 2011					December 31, 2010
1998 Long-Term Incentive Plan	Shares			Weighted Average Exercise Price		Shares			Weighted Average Exercise Price		Shares			Weighted Average Exercise Price
Options outstanding at January 1		169,051		$	21.82		413,710		$	19.88		720,791		$	18.19
Granted		-			-		-			-		-			-
Exercised		(165,401	)		21.80		(243,659	)		18.54		(306,548	)		15.93
Forfeited							-			-		-			-
Expired		(3,650	)		22.57		(1,000	)		14.79		(533	)		4.76
Options outstanding at December 31		-			-		169,051			21.82		413,710			19.88
Options exercisable at December 31		-			-		169,051			21.82		413,710			19.88

2006 Long-Term Incentive Plan

	December 31, 2012					December 31, 2011					December 31, 2010
2006 Long-Term Incentive Plan	Awards			Weighted Average Exercise Price		Awards			Weighted Average Exercise Price		Awards			Weighted Average Exercise Price
Awards outstanding at January 1		1,189,012		$	22.91		1,389,598		$	23.02		1,060,057		$	22.89
Granted		-			-		-			-		390,750			23.24
Exercised		(297,528	)		23.11		(170,998	)		24.04		(29,862	)		21.62
Forfeited		(3,125	)		23.24		(20,087	)		20.48		(22,722	)		19.92
Expired		(5,250	)		23.89		(9,501	)		23.64		(8,625	)		29.62
Awards outstanding at December 31		883,109			22.84		1,189,012			22.91		1,389,598			23.02
Awards exercisable at December 31		781,574			22.79		885,003			23.67		754,622			24.86

Our AMCOL International Corporation 2006 Long-Term Incentive Plan permits a total of 1,500,000 shares of AMCOL common stock to be awarded to eligible directors and employees through the use of nonqualified stock options, incentive stock options, restricted stock or restricted stock units, and stock appreciation rights. Different terms and conditions apply to each form of award made under the plan. Awards granted prior to 2009 have a six year life from the date of grant and vest ratably over a three year period from the date of grant. Awards granted in 2009 have a ten year life from the date of grant and vest ratably over a three year period from the date of the grant. No awards could be made pursuant to this plan after May 2010 when the AMCOL International Corporation 2010 Long-Term Incentive Plan was adopted as discussed later herein.

2010 Long-Term Incentive Plan

	December 31, 2012					December 31, 2011
2010 Long-Term Incentive Plan	Awards			Weighted Average Exercise Price		Awards			Weighted Average Exercise Price
Awards outstanding at January 1		356,050		$	30.66				$	-
Granted		417,420			29.80		379,425			30.66
Exercised		(567	)		30.66		-			-
Forfeited		(22,107	)		30.12		(23,375	)		30.66
Expired		(500	)		30.66		-			-
Awards outstanding at December 31		750,296			30.20		356,050			30.66
Awards exercisable at December 31		117,219			30.66		-			-

On May 6, 2010, our shareholders approved the AMCOL International Corporation 2010 Long-Term Incentive Plan. This plan permits a total of 2,000,000 shares of AMCOL common stock to be awarded to eligible directors and employees through the use of nonqualified stock options, incentive stock options, restricted stock or restricted stock units, and stock appreciation rights. Different terms and conditions apply to each form of award under the plan. Awards granted under this plan have a ten year life from the date of grant and vest ratably over a three year period from the date of the grant. At any time, the Board of Directors may amend the plan, which automatically expires on May 7, 2020.

All Stock Compensation Plans

All Stock Compensation Plans	2012		2011		2010
Intrinsic value of awards exercised during the year	$	3.6	$	5.1	$	3.9
Fair value of awards vested during the year		2.9		2.4		3.9
Grant date fair value of awards granted during the year		5.2		4.3		3.4

The following table summarizes information about stock compensation awards outstanding and exercisable at December 31, 2011:

							Weighted
			Weighted				Average
All Stock Compensation Plans	Number		Average				Remaining
	of		Exercise		Intrinsic		Contractual
	Awards		Price		Value		Life (Yrs.)
Awards outstanding at December 31, 2012		1,633,405	$	26.22	$	7.3		6.29
Awards exercisable at December 31, 2012		898,793		23.82		6.2		4.46

The following table summarizes information about our nonvested stock compensation awards outstanding:

	December 31, 2012					December 31, 2011					December 31, 2010
All Stock Compensation Plans- Nonvested Awards	Awards			Weighted Average Grant date Fair value		Awards			Weighted Average Grant date Fair value		Awards			Weighted Average Grant date Fair value
Nonvested awards outstanding at January 1		660,059		$	9.80		635,726		$	7.87		721,442		$	7.46
Granted		417,420			12.36		379,425			11.42		390,750			8.62
Vested		(317,635	)		8.99		(311,630	)		7.80		(453,744	)		8.50
Forfeited		(25,232	)		11.59		(43,462	)		9.77		(22,722	)		7.59
Nonvested awards outstanding at December 31		734,612			11.55		660,059			9.80		635,726			7.87

We recorded stock compensation expense of $4.5, $3.2 and $4.1 in 2012, 2011 and 2010, respectively. At December 31, 2012, we had approximately $3.0 of unrecognized stock compensation expense, which is expected to be recognized over a weighted-average period of 1.4 years. We expect to satisfy the exercise of stock compensation awards by issuing new shares of common stock.

Restricted Stock Awards

The tables above exclude the impact of all restricted stock awards.

Restricted stock awards are subject to performance conditions established by the Compensation Committee of the Board of Directors. The cost of these awards, determined to be the fair market value of the shares at the date of the grant, is expensed ratably over the performance period.

In February 2011, we granted 75,000 shares of performance based restricted stock to our executive officers pursuant to our 2010 Long-Term Incentive Plan. These restricted stock awards have a grant date fair value of $30.66 per share, and vest ratably over a three-year period from grant date, provided that the Company, or certain reporting segments, meet certain established performance targets. One-third of these shares vested in February 2012, and another one-third of these shares vested in February 2013, as the performance targets were met.

In 2009, we granted 40,000 shares of performance based restricted stock with December 2012 vest date to our executive officers pursuant to our 2006 Long-Term Incentive Plan. These restricted awards have a grant date fair value of $28.42 per share. All these shares were cancelled in December 2012 as the performance targets were not met.

We recorded expense of $0.0, $1.7 and $0.5 for our restricted stock awards in 2012, 2011 and 2010, respectively. We expect to satisfy any future distribution of shares of restricted stock by issuing new shares of common stock.

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Noncontrolling Interest

12 Months Ended

Dec. 31, 2012

Noncontrolling Interest [Abstract]

Noncontrolling Interest

(11)          Noncontrolling Interest

In January 2011, we acquired the remaining noncontrolling interest in Volclay South Africa (Proprietary) Limited ("VSA"), a part of our chromite operations, for approximately $5.6.

In February 2011, we sold 26% of our interest in Batlhako Mining Limited ("Batlhako") to Vengawave (Proprietary) Limited, which is a Black Economic Empowerment enterprise (a "BEE") in the Republic of South Africa. Batlhako is VSA's subsidiary dedicated strictly to mining chromite and selling it to one of our other subsidiaries for further processing and sale to the end customer. South African law requires that we have a BEE as a partner in the mining operations and this transaction was consummated to comply with those regulations.

The following table sets forth the effects of these transactions on equity attributable to AMCOL's shareholders.

	Twelve Months Ended December 31,
	2012		2011
Net income attributable to AMCOL shareholders	$	65.1	$	58.5
Transfers from noncontrolling interest:
Decrease in additional paid-in capital for purchase of the remaining noncontrolling interest in South Africa (Proprietary) Limited		-		(5.4	)
Decrease in additional paid-in capital for transfer of 26% interest in Batlhako		-		(3.4	)
Change from net income attributable to AMCOL shareholders and transfers from noncontrolling interest	$	65.1	$	49.7

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Employee Benefit Plans (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Pension Plan [Member]
Summary of net periodic pension cost
Service cost - benefits earned during the year	$ 1.7	$ 1.5	$ 1.4
Interest cost on accumulated benefit obligation	2.7	2.6	2.4
Expected return on plan assets	(2.6)	(2.9)	(2.6)
Net amortization and deferral	1.0	0.1	0.1
Net periodic pension cost	2.8	1.3	1.3
Supplementary Pension Plan [Member]
Summary of net periodic pension cost
Service cost - benefits earned during the year	0.3	0.2	0.3
Interest cost on accumulated benefit obligation	0.5	0.5	0.5
Expected return on plan assets	0	0	0
Net amortization and deferral	0.2	0.1	0.1
Net periodic pension cost	$ 1.0	$ 0.8	$ 0.9

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Income Taxes

12 Months Ended

Dec. 31, 2012

Income Taxes [Abstract]

Income Taxes

(7)            Income Taxes

Total income tax expense (benefit) for the years ended December 31 was comprised of the following:

	2012		2011			2010
Continuing operations	$	23.3	$	20.8		$	20.3
Discontinued operations				(0.6	)		(0.7	)
		23.3		20.2			19.6

Income from continuing operations before income taxes and income (loss) from affiliates and joint ventures was comprised of the following:

	2012		2011		2010
Income from continuing operations before income taxes and income (loss)from affiliates and joint ventures:
Domestic	$	56.4	$	53.8	$	43.6
Foreign		27.9		21.5		17.1
		84.3		75.3		60.7

The components of the provision for income taxes attributable to income from continuing operations before income taxes and income (loss) from affiliates and joint ventures for the years ended December 31 consisted of:

	2012			2011			2010
Provision (benefit) for income taxes:
Federal:
Current	$	14.0		$	5.2		$	7.4
Deferred		0.8			6.4			2.1
State:
Current		2.8			2.9			2.4
Deferred		(1.9	)		0.4			-
Foreign:
Current		8.4			8.0			7.4
Deferred		(0.8	)		(2.1	)		1.0
		23.3			20.8			20.3

The tax effects of temporary differences that gave rise to significant portions of the deferred tax assets and liabilities as of December 31 were as follows:

	2012			2011
Deferred tax assets attributable to:
Accounts receivable	$	2.1		$	1.1
Inventories		2.7			1.7
Employee benefit plans		28.3			25.6
Accrued liabilities		0.6			0.5
Employee incentive plans		2.4			1.3
Tax credit carryforwards		6.9			7.2
Available-for-sale securities		-			2.8
Other		0.3			0.8
Total deferred tax assets		43.3			41.0
Deferred tax liabilities attributable to:
Plant and equipment		(17.7	)		(17.6	)
Land and mineral reserves		(12.7	)		(13.5	)
Joint ventures		(2.0	)		(1.8	)
Intangible assets		(2.7	)		(1.7	)
Available-for-sale securities		(1.2	)		-
Other		(0.8	)		(0.5	)
Total deferred tax liabilities		(37.1	)		(35.1	)
Valuation allowances		(5.1	)		(6.8	)
Net deferred tax asset (liability)		1.1			(0.9	)

We believe it is more likely than not that the deferred tax assets above will be realized in the normal course of business.

The following analysis reconciles the U.S. statutory federal income tax rate to the effective tax rates related to income from continuing operations before income taxes and equity income (loss) of affiliates and joint ventures:

	2012						2011						2010
	Amount			Percent of Pretax Income			Amount			Percent of Pretax Income			Amount			Percent of Pretax Income
Provision for income taxes at
U.S. statutory rates	$	29.5			35.0	%	$	26.3			35.0	%	$	21.2			35.0	%
Increase (decrease) in taxes resulting from:
Percentage depletion		(5.0	)		-6.0	%		(4.9	)		-6.5	%		(3.9	)		-6.4	%
State taxes, net of federal benefit		1.7			2.1	%		2.2			2.9	%		1.5			2.6	%
Foreign tax rates		(3.9	)		-4.6	%		(1.0	)		-1.4	%		(0.9	)		-1.5	%
Change in reserve for tax uncertainties		-			0.0	%		(0.7	)		-0.9	%		0.1			0.1	%
Domestic manufacturing deduction		(1.6	)		-1.9	%		(0.8	)		-1.1	%		(0.5	)		-0.8	%
Change in state tax rates		(1.9	)		-2.2	%		-			0.0	%		(0.1	)		-0.2	%
Foreign witholding tax		1.6			2.0	%		1.0			1.3	%		0.6			1.0	%
Foreign tax credits		(3.2	)		-3.8	%		(2.4	)		-3.1	%		(2.2	)		-3.6	%
Changes to valuation allowance		1.9			2.2	%		(0.2	)		-0.3	%		3.4			5.6	%
Tax from foreign disregarded entities		0.4			0.5	%		0.3			0.3	%		1.4			2.2	%
Other		3.8			4.3	%		1.0			1.4	%		(0.3	)		-0.6	%
		23.3			27.6	%		20.8			27.6	%		20.3			33.4	%

Percentage Depletion

Depletion deductions are federal income tax deductions that arise from extracting minerals from the ground. There are two methods of calculating depletion: cost depletion and percentage depletion. Cost depletion deduction is similar to depreciation in that it allows us to recover the cost of an asset over the resources' productive life. Percentage depletion deduction is computed on the basis of the income from the property rather than capitalization costs. It is different from depreciation and cost depletion deductions, however, in that percentage depletion deduction in excess of cost is a permanent book to tax difference, whereas depreciation and cost depletion deductions are temporary in nature. Hence, percentage depletion deduction affects the effective tax rate whereas depreciation and cost depletion deductions do not. We calculate depletion under the percentage depletion method based upon revenues and costs from our mining activities in the U.S.

Tax on Reinvested Earnings

We have not provided for United States federal income tax and foreign income withholding taxes on approximately $138.9 and $113.6 of undistributed earnings from international subsidiaries as of December 31, 2012 and 2011, respectively, because such earnings are intended to be reinvested indefinitely outside of the U.S. If these earnings were distributed, foreign tax credits may become available under current law to reduce or eliminate the resulting income tax liability in the United States.

Tax Holidays

We have benefitted from tax holidays in both Poland and Thailand as a result of our locating and investing in special economic zones in each country. These tax holidays resulted in reductions to our income tax expense of $0.2, $0.1, and $0.5 in 2012, 2011 and 2010, respectively, representing benefits of $0.01, $0.00 and $0.01 to diluted earnings per share in 2012, 2011 and 2010, respectively.

Our agreement with the Polish tax authorities expired in 2010. We continue to pursue other opportunities in an effort to minimize income tax within the country.

Our agreement with the Thai tax authorities provides for tax holidays on several investments. The most significant tax exemption is on all income from manufacturing operations (distributed goods are still subject to taxation) related to our initial investment. These initial manufacturing activities were taxable at 50% in years 2006 through 2010. An additional tax holiday was granted in 2007 for the expansion of our Thai facility. Income generated from this expansion is granted a 100% tax holiday from corporate income tax for eight (8) years beginning in 2007 and then taxable at 50% for five (5) years starting in 2015. We attempt to modify and obtain tax concessions when possible.

Exams

In the normal course of business, we are subject to examination by tax authorities throughout the world. With few exceptions, we are no longer subject to income tax examinations by tax authorities for years prior to 2010. The United States Internal Revenue Service ("IRS") has examined our federal income tax returns for all open years through 2009.

NOLs and Credit Carryforwards

At December 31, 2012, we have $0.9 of various income tax credits, which we expect to utilize within the ten year carryforward period. Due to the expiration of state operating loss carryovers, we have written off the related deferred tax asset of $0.6 and the corresponding full valuation allowance at December 31, 2012.

Unrecognized Tax Benefits

The following table summarizes the activity related to our unrecognized tax benefits:

	2012		2011			2010
Balance at beginning of the year	$	-	$	0.8		$	0.7
Increases related to prior year tax positions							0.1
Increases related to current year tax positions
Decreases related to the expiration of statue of limitation / settlement of audits				(0.8	)
Balance at the end of the year		-		-			0.8

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Goodwill and Intangible Assets (Details 2) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012
Schedule of estimate amortization expense of intangible assets for the future years
2013	$ 4.3
2014	4.0
2015	3.8
2016	3.8
2017	$ 3.0

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Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets [Abstract]

Goodwill and Intangible Assets

(5)           Goodwill and Intangible Assets

The balance of goodwill by segment and the activity occurring in the past two fiscal years is as follows:

	Performance Materials			Construction Technologies			Energy Services		Consolidated
Balance at December 31, 2010	$	18.2		$	21.7		$	31.0	$	70.9
Change in goodwill relating to:
Sale of business		-			(0.2	)		-		(0.2	)
Foreign exchange translation		(0.8	)		(0.4	)		-		(1.2	)
Total changes		(0.8	)		(0.6	)		-		(1.4	)
Balance at December 31, 2011		17.4			21.1			31.0		69.5
Change in goodwill relating to:
Foreign exchange translation		0.4			0.3			-		0.7
Total changes		0.4			0.3			-		0.7
Balance at December 31, 2012		17.8			21.4			31.0		70.2

Intangible assets were as follows:

	December 31, 2012							December 31, 2011
	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Gross Carrying Value		Accumulated Amortization			Net Carrying Value
Intangibles subject to amortization:
Trademarks	$	1.6	$	(1.6	)	$	-	$	1.6	$	(1.5	)	$	0.1
Patents		6.9		(6.9	)		-		6.9		(6.8	)		0.1
Customer related assets		47.1		(23.0	)		24.1		47.1		(19.7	)		27.4
Non-compete agreements		2.2		(2.2	)		-		2.2		(2.1	)		0.1
Developed technology		4.0		(2.4	)		1.6		4.0		(2.0	)		2.0
Other		3.9		(1.8	)		2.1		2.5		(1.4	)		1.1
Subtotal		65.7		(37.9	)		27.8		64.3		(33.5	)		30.8
Intangibles not subject to amortization:
Trademarks and tradenames		6.1		-			6.1		6.1		-			6.1
Total		71.8		(37.9	)		33.9		70.4		(33.5	)		36.9

Intangible assets with finite lives are being amortized primarily on a straight-line basis over their estimated useful lives. The weighted average amortization period of our intangible assets with finite lives is 11 years. We did not recognize any material impairment charge in either of the years included above with respect to intangible assets. Amortization expense on intangible assets for each of the years ended December 31, 2012, 2011, and 2010 was $4.3, $4.8, and $5.1, respectively. We estimate amortization expense of intangible assets for the future years ending December 31 will approximate the following amounts:

	Amount
2013	$	4.3
2014		4.0
2015		3.8
2016		3.8
2017		3.0

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Equity Investees

12 Months Ended

Dec. 31, 2012

Equity Investees [Abstract]

Equity Investees

(6)           Equity Investees

Information about our investments in and advances to affiliates and joint ventures at December 31, 2012 is as follows:

	Ownership Interest
Ashapura Volclay Limited		50	%
CETCO-Bentonit Uniao Technologias Ambientais Ltda.		50	%
Egypt Bentonite & Derivatives Co.		30	%
Egypt Mining & Drilling Co.		31	%
Egypt Nano Technologies Co.		27	%
Maprid Tech Cast, S.A. de C.V.		49	%
Volclay de Mexico, S.A. de C.V.		49	%
Volclay Japan Co., Ltd.		50	%

We account for all of the above investments under the equity method. We record the majority of our equity in the earnings of our investments in affiliates and joint ventures on a one quarter lag. None of our equity investees are publicly traded, and the difference between our investment and the underlying net equity of the investee is immaterial.

In 2012, we recorded income of $3.9 from our joint venture and affiliated entities, which was primarily generated from Ashapura Volclay Limited, Volclay Japan Co. Ltd, and Volclay de Mexico, SA. de C.V.

In 2011, we recorded income of $5.2 from our joint venture and affiliated entities, of which $2.1 related to the sale of Ashapura AMCOL N.V., our Belgian joint-venture which we sold in the second quarter of 2011. The remaining income was primarily generated from Ashapura Volclay Limited, Volclay Japan Co. Ltd, and Volclay de Mexico, SA. de C.V. In the third quarter of 2011, we sold our interest in Albagle Enterprise Limited, our Cypriot joint-venture whose operations were mainly in Russia, at an immaterial loss.

In 2010, we recorded losses of $11.0 from our joint venture and affiliated entities. Of these losses $7.2 is from Albagle Enterprise Limited and $6.9 is from Ashapura AMCOL N.V. We recorded an impairment on Albagle Enterprise Limited due to its continued poor financial performance which was not expected to recover. Ashapura AMCOL N.V. impaired its fixed assets due its inability to generate profits. Our investments in these ventures had been reduced to zero as of December 31, 2010.

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Long-term Debt

12 Months Ended

Dec. 31, 2012

Long-term Debt [Abstract]

Long-term Debt

(8)           Long-term Debt

Amounts of long-term debt were as follows:

	December 31,
	2012			2011
Borrowings under revolving credit agreement	$	114.6		$	120.9
Senior notes		125.0			125.0
Other notes payable		10.2			15.5
		249.8			261.4
Less: current portion		(1.0	)		(0.7	)
		248.8			260.7

In January 2012, we entered into a new revolving credit agreement that replaced our previous revolving credit agreement. The new credit agreement provides us with a $300 unsecured line of credit, which can be increased to $400 subject to certain customary conditions and approvals. It is a multi-currency arrangement that will allow us to borrow certain foreign currencies at an adjusted LIBOR rate plus 1.00% to 1.75%, depending upon the ratio of our debt to EBITDA as defined therein. The new credit agreement expires on January 20, 2017, and contains certain restrictive covenants, including covenants relating to the maintenance of net worth, leverage ratios and interest coverage ratios. As of December 31, 2012, $185.4 remained available to us under this revolving credit line and we were in compliance with all of the covenants and ratios.

We had interest rate swaps outstanding which effectively hedge the variable interest rate on $33 of our borrowings as of December 31, 2012 and 2011, to a fixed rate of 3.3% per annum, plus credit spread. Including the effect of this interest rate swap agreement, our borrowings under the credit agreement as of December 31, 2012 carried an average interest rate of 2.95%.

A qualified institution holds $75 of our senior notes which mature on April 2, 2017, subject to certain acceleration features upon an event of default, should one occur. These senior notes are comprised of (a) $45 aggregate principal amount of Series 2007-A Adjustable Fixed Rate Guaranteed Senior Notes, Tranche 1, due April 2, 2017 (the "Tranche 1" notes) and (b) $30 aggregate principal amount of Series 2007-A Adjustable Floating Rate Guaranteed Senior Notes, Tranche 2 (the "Tranche 2" notes). Tranche 1 bears interest at 5.78%, payable semi-annually in arrears on April 2nd and October 2nd of each year. Tranche 2 bears interest at an annual rate of 0.55% plus LIBOR in effect from time to time, adjusted quarterly, and is payable quarterly in arrears.

As of December 31, 2012 and 2011, we had an interest rate swap outstanding which effectively hedges the variable interest rate of $30 of Tranche 2 senior notes to a fixed rate of 5.6% per annum.

On April 29, 2010, we issued and sold an additional $50 of senior notes to other qualified institutional buyers pursuant to a note purchase agreement (the "Note Purchase Agreement"). These senior notes bear interest at a fixed annual rate of 5.46%, payable semi-annually in arrears on April 29th and October 29th of each year, beginning on October 29, 2010. Our obligations under the Note Purchase Agreement mature on April 29, 2020.

Our obligations under our revolving credit agreement, the Tranche 1 and Tranche 2 notes, and the Note Purchase Agreement are guaranteed by certain of our subsidiaries.

We also have an uncommitted, short-term credit facility maturing on November 15, 2013 that allows for maximum borrowings of $15, of which $8.5 was outstanding as of December 31, 2012 at an interest rate of 2.00%.

As of December 31, 2012, 65% of our debt is fixed at an average rate of 5.12%, the remainder of our debt contains interest rates which vary mostly in response to the changes in LIBOR.

Maturities of long-term debt outstanding at December 31, 2011 were as follows:

	2013		2014		2015		2016		2017		Thereafter
Borrowings under:
Revolving credit agreement	$	-	$	-	$	-	$	-	$	114.6	$	-
Senior notes		-		-		-		-		75.0		50.0
Other notes payable		1.0		0.5		0.1		-		8.6		-
		1.0		0.5		0.1		-		198.2		50.0

At December 31, 2012 and 2011, we had outstanding standby letters of credit of approximately $4.2 and $3.7, respectively, which are not included in our Consolidated Balance Sheets. These letters of credit typically serve to guarantee performance of our land reclamation and workers' compensation obligations; we have recorded amounts owed under these obligations in our Consolidated Balance Sheets as of December 31, 2012 and 2011.

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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income tax expense (benefit)
Continuing operations	$ 23.3	$ 20.8	$ 20.3
Discontinued operations		(0.6)	(0.7)
Income tax expense benefit continuing and discontinue operations	$ 23.3	$ 20.2	$ 19.6

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Employee Benefit Plans (Details 2)	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Pension Plan [Member]
Assumptions used to determine pension obligations
Discount rate (in hundredths)	4.17%	4.70%
Rate of compensation increase (in hundredths)	3.00%	4.00%
Long-term rate of return on plan assets (in hundredths)	7.50%	7.50%
Supplementary Pension Plan [Member]
Assumptions used to determine pension obligations
Discount rate (in hundredths)	4.00%	4.63%
Rate of compensation increase (in hundredths)	3.00%	4.00%

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Income Taxes (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Federal:
Current	$ 14.0	$ 5.2	$ 7.4
Deferred	0.8	6.4	2.1
State:
Current	2.8	2.9	2.4
Deferred	(1.9)	0.4	0
Foreign:
Current	8.4	8.0	7.4
Deferred	(0.8)	(2.1)	1.0
Income tax expense (benefit), total	$ 23.3	$ 20.8	$ 20.3

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Equity Investees (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Equity Method Investments [Line Items]
Income (loss) from affiliates and joint ventures	$ 3.9	$ 5.2	$ (11.0)
Albagle Enterprise Limited [Member]
Schedule of Equity Method Investments [Line Items]
Gain (loss) from sale of joint venture and affiliated entities			(7.2)
Ashapura AMCOL N.V. [Member]
Schedule of Equity Method Investments [Line Items]
Gain (loss) from sale of joint venture and affiliated entities		$ 2.1	$ (6.9)

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Stock Compensation Plans (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Summary of fair value of awards granted
Risk-free interest rate (in hundredths)	1.00%	2.20%	2.70%
Expected life of option in years	5 years 4 months 21 days	5 years 6 months 4 days	5 years 7 months 10 days
Expected dividend yield of stock (in hundredths)	2.30%	2.50%	3.20%
Expected volatility of stock price (in hundredths)	56.40%	49.00%	50.80%
Weighted-average per share fair value of options granted (in dollars per share)	$ 12.36	$ 11.42	$ 8.62

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Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2012

Long-term Debt [Abstract]

Amounts of long-term debt

Amounts of long-term debt were as follows:

	December 31,
	2012			2011
Borrowings under revolving credit agreement	$	114.6		$	120.9
Senior notes		125.0			125.0
Other notes payable		10.2			15.5
		249.8			261.4
Less: current portion		(1.0	)		(0.7	)
		248.8			260.7

Maturities of long-term debt outstanding

Maturities of long-term debt outstanding at December 31, 2011 were as follows:

	2013		2014		2015		2016		2017		Thereafter
Borrowings under:
Revolving credit agreement	$	-	$	-	$	-	$	-	$	114.6	$	-
Senior notes		-		-		-		-		75.0		50.0
Other notes payable		1.0		0.5		0.1		-		8.6		-
		1.0		0.5		0.1		-		198.2		50.0

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Balance Sheet Related Information (Details 3) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Reclamation liability
Balance at beginning of the year	$ 9.3	$ 8.0
Settlement of obligations	(3.9)	(4.3)
Liabilities incurred and accretion expense	4.2	6.0
Currency translation adjustments	(0.1)	(0.4)
Balance at the end of the year	$ 9.5	$ 9.3

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Leases

12 Months Ended

Dec. 31, 2012

Leases [Abstract]

Leases

(13)         Leases

In 2008, we entered into a sale-leaseback transaction involving the construction of a new corporate facility. Under terms of the operating lease, rental payments in fiscal 2012, 2011 and 2010 approximate $2.7 , $2.6, and $2.6, respectively, and increase 2% annually thereafter through December 2028.

We have several noncancelable leases for equipment, software, and plant facilities. Total rent expense under operating lease agreements was approximately $20.1, $14.4 and $12.5 in 2012, 2011 and 2010, respectively.

The following is a schedule of future minimum lease payments for operating leases (with initial terms in excess of one year) as of December 31, 2012:

	Minimum Lease
	Payments
	Domestic		Foreign		Total
Year ending December 31:
2013	$	17.4	$	2.6	$	20.0
2014		14.4		1.9		16.3
2015		11.5		1.1		12.6
2016		8.4		0.7		9.1
2017		6.0		0.5		6.5
Thereafter		45.4		1.1		46.5
Total		103.1		7.9		111.0

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2012

Summary of Significant Accounting Policies [Abstract]

Recently Adopted Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In September 2011, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2011-08, codified in Accounting Standards Codification ("ASC") Topic 350 – Intangibles – Goodwill and Other. ASU 2011-08 simplifies how entities test goodwill for impairment. It permits an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. This assessment can then be used to determine whether it is necessary to perform the two-step goodwill impairment test described in Topic 350. The adoption of this ASU on January 1, 2012 did not have a material impact on our financial statements.

In June 2011, the FASB issued ASU 2011-05, codified in ASC Topic 220 – Comprehensive Income to increase the prominence of items reported in other comprehensive income ("OCI"). This ASU requires presentation of items of net income, items of OCI and total comprehensive income either in one continuous statement or two separate but consecutive statements. This ASU does not change the items which must be reported in OCI, how such items are measured or when they must be reclassified to net income. The FASB subsequently deferred the effective date of certain provisions of this ASU pertaining to the reclassification of items out of accumulated other comprehensive income, pending the issuance of further guidance on that matter. The adoption of this ASU on January 1, 2012 did not have a material impact on our financial statements.

In May 2011, the FASB issued ASU 2011-04, codified in ASC Topic 820 – Fair Value Measurements. This ASU includes amendments that clarify the intent about the application of existing fair value measurement requirements. Specifically, it requires additional disclosures for fair value measurements that are based on significant inputs. The adoption of this ASU on January 1, 2012 did not have a material impact on our financial statements.

Accounting Pronouncements not yet adopted

Accounting Pronouncements not yet adopted

In February 2013, the FASB issued ASU 2013-02 codified in ASC Topic 220 – Comprehensive Income which adds new disclosure requirements for items reclassified out of accumulated other comprehensive income. This ASU requires entities to disclose additional information about reclassification adjustments, including changes in accumulated other comprehensive income balances by component and significant items reclassified out of accumulated other comprehensive income. This ASU will primarily impact our disclosures for reclassification adjustments and as such is not expected to have a material impact on our financial statements when we adopt it on January 1, 2013.

In July 2012, the FASB issued ASU 2012-02, codified in ASC Topic 350 – Intangibles – Goodwill and Other. This ASU gives entities the option to first assess the qualitative factors to determine whether the existence of events and circumstances indicates that it is more likely than not that an indefinite-lived intangible asset is impaired. If impairment is indicated, the fair value of the indefinite-lived intangible asset should be determined and the quantitative impairment test should be performed by comparing the fair value with the carrying value in accordance with subtopic 350-30. If impairment is not indicated, the entity is not required to take further action. The ASU will not have a material impact on our financial statements when we adopt it on January 1, 2013.

Principles of Consolidation

Principles of Consolidation

The consolidated financial statements include the accounts of our domestic and foreign subsidiaries as well as variable interest entities for which we have determined that we are the primary beneficiary. We consolidate all subsidiaries in which we own more than 50% of their equity. We use the equity method of accounting to incorporate the results of our investments in companies in which we have significant influence.

Our corporate segment includes the elimination of intersegment sales as well as certain expenses associated with research and development, management, employee benefits and information technology activities for our Company. Approximately 71% and 77% of the revenue elimination in the years ended December 31, 2012 and 2011, respectively, and 100% of the revenue elimination in the year ended December 31, 2010 represent the elimination of shipping revenues between our transportation segment and its domestic sister companies.

Segments

Segments

In the fourth quarter of 2012, we renamed three of our segments to better reflect their business operations. The minerals and materials, environmental, and oilfield services segments are now named performance materials, construction technologies, and energy services, respectively. We also restructured some of our product lines within the performance materials segment by including the results of our agriculture related operations in our specialty materials product line as opposed to our basic minerals product line where it had previously been included.

The composition of consolidated revenues by segment is as follows:

	Percentage of Net Sales
	2012			2011			2010
Performance materials		50	%		51	%		50	%
Construction technologies		23	%		27	%		27	%
Energy services		26	%		21	%		19	%
Transportation		4	%		6	%		6	%
Intersegment sales		-3	%		-5	%		-2	%
		100	%		100	%		100	%

Further descriptions of our products, principal markets and the relative significance of our segment operations are included in Note 2.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires us to make estimates and assumptions that affect the amount of assets, liabilities, revenues and expenses reported in our financial statements as well as certain disclosures contained therein. Actual results may differ from those estimates.

Revenue Recognition

Revenue Recognition

We recognize revenue from sales of products when title passes to the customer, the customer assumes the risks and rewards of ownership, and collectibility is reasonably assured; generally, this occurs when we ship product to customers. We record allowances for discounts, rebates, and estimated returns at the time of sale and report these as reductions to revenue. We generate some sales through independent, third-party representatives and record the commission paid to the representative as an expense within selling, general and administrative expenses.

We recognize revenue for freight delivery services within our transportation segment when the service is provided. We accrue amounts payable for purchased transportation, commissions and insurance when the related revenue is recognized.

Service and rental revenues are primarily generated in our construction technologies and energy services segments. We recognize these revenues in the period such services are performed and collectibility is reasonably assured.

We record revenue from long-term construction contracts using the percentage-of-completion method. Progress is generally based upon costs incurred to date as compared to the total estimated costs to complete the work under the contract or the amount of product installed in relation to the total amount expected to be installed. All known or anticipated losses on contracts are provided when they become evident. Cost adjustments that are in the process of being negotiated with customers for extra work or changes in scope of work are included in revenue when collection is reasonably assured.

Translation of Foreign Currencies

Translation of Foreign Currencies

Foreign entities generally utilize their local currency as the functional currency. We record gains and losses resulting from foreign currency transactions in net income, and we reflect the adjustments resulting from the translation of financial statements into our reporting currency during consolidation as a component of accumulated other comprehensive income within equity. The assets and liabilities of subsidiaries located outside of the United States are translated into U.S. dollars at the rates of exchange at the balance sheet dates. The statements of operations are translated using average exchange rates throughout the period.

Cash Equivalents

Cash Equivalents

We classify all short-term, highly liquid investments with original maturities of three months or less as cash and cash equivalents.

Inventories

Inventories

Inventories are valued at the lower of cost or net realizable value. Cost is determined by the first-in, first-out (FIFO) method. Mineral exploration costs are expensed as incurred.

Receivables and Allowance for Doubtful Accounts

Receivables and Allowance for Doubtful Accounts

We carry our receivables at their face amount less an allowance for bad debts. We establish the allowance for bad debts based on a review of several factors, including historical collection experience, current aging status of the customer accounts, and the financial condition of our customers.

Property, Plant, Equipment, and Mineral Rights and Reserves

Property, Plant, Equipment, and Mineral Rights and Reserves

Property, plant, equipment, and mineral rights and reserves are carried at cost less accumulated depreciation and depletion. Depreciation is computed using the straight-line method for substantially all of the assets. Certain other assets, primarily field and stockpile related equipment and mineral rights and reserves, are depreciated on the units-of-production method.

Goodwill

Goodwill

Goodwill represents the excess of the purchase price over the fair value of the net assets of acquired businesses. Fair value reflects the price a market participant would be willing to pay in a potential sale of the reporting unit. We review the carrying value of goodwill in each reporting unit for impairment annually as of October 1st or more frequently if indications exist which may suggest the carrying value is not recoverable. Such indicators may include deterioration in general economic conditions, negative developments in equity and credit market, adverse changes in the market in which we operate, increase in input costs that have a negative impact on earnings and cash flows, or a trend of negative or declining cash flows over multiple periods, among others.

In conducting our 2012 annual goodwill impairment assessment, we relied on both the qualitative and quantitative assessment methodologies.

For the reporting units assessed using the qualitative method, we identified various events and circumstances (or factors) that would affect the estimated fair value of our reporting units and determined the level of impact a particular factor would have on the estimated fair value. In addition, we considered the results of the most recent two-step quantitative impairment test completed for each reporting unit and compared the weighted average cost of capital between the current and prior years for each reporting unit. We concluded that it was not more likely than not that any of our reporting units' fair value under qualitative assessment were less than their carrying value. As such, no further analysis was required.

For the reporting unit assessed using quantitative method, we performed a two-step quantitative impairment test. We used a discounted cash flow model (income approach) to estimate the fair value of our reporting unit as we believe that the forecasted cash flows are the best indicator of such fair value. A number of significant assumptions and estimates, including expectations of our reporting unit's business performance, financial results, useful life of assets, discount rate, and comparable market data, were involved in developing the discounted cash flow model. We concluded that the fair value was not less than the carrying value and no further analysis was required.

Other Intangible Assets

Other Intangible Assets

Other intangible assets with a finite useful life are amortized on the straight-line method over the expected periods to be benefited.

Impairment of Long-Lived Assets

Impairment of Long-Lived Assets

We review the carrying values of long-lived assets, including property, plant and equipment and intangible assets with a finite useful life whenever facts and circumstances indicate that the assets may be impaired. Recoverability of assets to be held and used is measured by comparing the carrying amount of an asset to the future net undiscounted cash flows we expect it to generate. If we consider an asset to be impaired, we record an impairment charge equal to the amount by which the carrying value of the asset exceeds the fair value. We report an asset to be disposed of at the lower of its carrying value or fair value, less costs of disposal.

In the case of intangible assets with indefinite lives, we review them annually for impairment. This review involves comparing the fair value of the intangible asset with its carrying amount. If its carrying amount exceeds its fair value, we recognize an impairment loss equal to that excess.

Available-for-Sale Securities

Available-for-Sale Securities

We record available-for-sale securities at their fair value using quoted market prices. We report their unrealized gains and losses, net of applicable taxes, as a component of accumulated other comprehensive income within equity. We have one equity security that we have accounted for as an available-for-sale security as of December 31, 2012 and 2011.

Income Taxes

Income Taxes

We recognize deferred tax assets and liabilities relating to the future tax consequences of differences between the financial statement carrying value of existing assets and liabilities and their respective tax values. We measure deferred tax assets and liabilities using tax rates in effect in the years in which those temporary differences are expected to be recovered or settled. We recognize the effect that changes in tax rates have on deferred tax assets and liabilities in income in the period that the change is enacted. Valuation allowances are recorded to reduce deferred tax assets to amounts that are more likely than not to be realized. We classify interest and penalties associated with income taxes, including uncertain tax positions, within the income tax expense line item of our Consolidated Statement of Operations.

Freight and Sales Taxes

Freight and Sales Taxes

We report amounts charged to customers for shipping and handling fees as revenues and we report amounts incurred for these costs within cost of sales in the consolidated statements of operations (i.e. gross presentation with revenues and cost of sales). Also, we report amounts charged to customers for sales taxes and the related costs incurred for sales tax remittances to governmental agencies within net sales in the Consolidated Statement of Operations (i.e. net presentation within revenues).

Product Liability & Warranty Expenses

Product Liability & Warranty Expenses

We report expenses incurred for warranty and product liability costs in general, selling and administrative expenses in our Consolidated Statement of Operations. Our warranty accrual is based on known warranty issues as of the balance sheet date as well as a reserve for unidentified claims based on historical experience.

Legal Fees

Legal Fees

We report expenses for fees, including legal costs associated with loss contingencies, when services are performed.

Land Reclamation

Land Reclamation

We mine land for various minerals using a surface-mining process that requires the removal of overburden. In many instances, we are obligated to restore the land upon completion of the mining activity. As we remove overburden, we recognize this liability for land reclamation based on the estimated fair value of the obligation. We adjust the obligation to reflect the passage of time and changes in estimated future cash outflows.

Research and Development

Research and Development

Research and development costs are expensed as incurred within selling, general and administrative expenses.

Earnings per Share

Earnings per Share

Basic earnings per share is computed by dividing net income attributable to AMCOL shareholders by the weighted average number of common shares outstanding. Diluted earnings per share is similarly computed, except the denominator is increased to include the dilutive effects of stock compensation awards and other share equivalents. Stock compensation awards are antidilutive and therefore excluded from our diluted earnings per share calculation when their exercise would result in a net decrease in the weighted average number of common shares outstanding. A reconciliation between the shares used to compute basic and diluted earnings per share follows:

	2012		2011		2010
Weighted average common shares outstanding for the year		32,050,538		31,708,949		31,178,813
Dilutive impact of stock equivalents		347,827		436,824		368,778
Weighted average common and common equivalent shares for the year		32,398,365		32,145,773		31,547,591
Common shares outstanding at December 31		32,184,110		31,728,969		31,032,791
Weighted average anti-dilutive shares excluded from the computation of diluted earnings per share		402,485		189,768		470,097

Stock-Based Compensation

Stock-Based Compensation

We account for stock-based compensation using the grant date fair value, which is based on the Black-Scholes option-pricing model. We recognize compensation cost over the requisite service period, which is generally the vesting period of the award.

Derivative Instruments and Hedging Activities

Derivative Instruments and Hedging Activities

From time to time, we use derivative financial instruments to manage exposures to changes in interest rates and foreign currency exchange rates. We do not use derivative instruments for trading or other speculative purposes. We recognize our derivative instruments as either assets or liabilities in the balance sheet at their fair value. Our recognition of changes in the fair value (i.e. gains and losses) of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and the type of that relationship. Hedges designated as cash flow hedges result in the changes in fair value being recorded in accumulated other comprehensive income. Changes in the fair value of derivative financial instruments for which hedge accounting is not applied, are recorded within Other, net within our Consolidated Statement of Operations.

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Stock Compensation Plans (Details 3) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2012
Summary of stock compensation awards outstanding and exercisable
Number of Awards outstanding, Ending balance (in shares)	1,633,405
Weighted Average Exercise Price Awards outstanding, Ending balance (in dollars per share)	$ 26.22
Intrinsic Value Awards outstanding, Ending balance	$ 7.3
Weighted Average Remaining Contractual Life Awards outstanding, Ending balance	6 years 3 months 15 days
Number of Awards exercisable, Ending balance (in shares)	898,793
Weighted Average Exercise Price Awards exercisable, Ending balance (in dollars per share)	$ 23.82
Intrinsic Value Awards exercisable, Ending balance	$ 6.2
Weighted Average Remaining Contractual Life Awards exercisable, Ending balance	4 years 5 months 16 days

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Balance Sheet Related Information (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Inventories
Crude stockpile inventories	$ 60.8	$ 53.4
In-process and finished goods inventories	70.5	65.0
Other raw material, container, and supplies inventories	22.5	25.9
Total	$ 153.8	$ 144.3

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Quarterly Results (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Results (Unaudited) [Abstract]

Summary of quarterly results (unaudited)

Unaudited summarized results for each quarter of the last two years are as follows:

	2012 Quarters
	First			Second			Third			Fourth
Performance materials	$	125.2		$	131.1		$	121.0		$	114.6
Construction technologies		50.9			61.4			60.6			50.2
Energy services		55.3			61.1			69.1			71.8
Transportation		11.1			11.7			10.7			10.5
Intersegment sales		(7.1	)		(7.8	)		(7.9	)		(7.9	)
Net sales		235.4			257.5			253.5			239.2
Performance materials	$	33.4		$	35.6		$	31.2		$	26.7
Construction technologies		14.6			18.7			20.1			15.1
Energy services		15.4			19.2			17.7			18.8
Transportation		1.2			1.2			1.1			1.1
Intersegment gross profit		0.1			-			(0.3	)		0.2
Gross profit		64.7			74.7			69.8			61.9
Performance materials	$	21.5		$	22.5		$	18.0		$	14.3
Construction technologies		0.9			6.3			7.0			1.4
Energy services		4.8			7.7			7.9			8.3
Transportation		0.2			0.3			0.2			0.1
Corporate		(6.0	)		(5.7	)		(5.0	)		(6.6	)
Operating profit		21.4			31.1			28.1			17.5
Income (loss) from continuing operations	$	13.5		$	21.4		$	19.0		$	11.0
Income (loss) on discontinued operations	$	-		$	-		$	-		$	-
Net income (loss)	$	13.5		$	21.4		$	19.0		$	11.0
Net income (loss) attributable to noncontrolling interests	$	0.1		$	(0.3	)	$	-		$	-
Net income (loss) attributable to AMCOL shareholders	$	13.4		$	21.7		$	19.0		$	11.0
Basic earnings per share attributable to AMCOL shareholders (A)	$	0.42		$	0.68		$	0.59		$	0.34
Diluted earnings per share attributable to AMCOL shareholders (A)	$	0.41		$	0.67		$	0.59		$	0.34

(A) Earnings per share (EPS) for each quarter is computed using the weighted-average number of shares outstanding during the quarter, while EPS for the year is computed using the weighted-average number of shares outstanding during the year. Thus, the sum of the EPS for each of the four quarters may not equal the EPS for the year.

	2011 Quarters
	First			Second			Third			Fourth
Performance materials	$	115.8		$	118.3		$	122.2		$	120.4
Construction technologies		51.7			74.8			71.0			54.4
Energy services		45.6			45.1			50.1			53.9
Transportation		12.7			14.8			14.9			11.7
Intersegment sales		(7.2	)		(9.8	)		(10.3	)		(6.3	)
Net sales		218.6			243.2			247.9			234.1
Performance materials	$	28.1		$	26.2		$	31.5		$	30.7
Construction technologies		15.3			22.2			21.8			14.6
Energy services		13.5			11.7			15.4			15.4
Transportation		1.4			1.6			1.8			1.3
Intersegment gross profit		(0.4	)		0.1			(0.1	)		0.2
Gross profit		57.9			61.8			70.4			62.2
Performance materials	$	16.1		$	13.4		$	19.5		$	18.1
Construction technologies		1.8			8.0			7.0			0.5
Energy services		5.7			3.7			5.8			6.1
Transportation		0.5			0.7			0.7			0.3
Corporate		(5.1	)		(4.9	)		(7.2	)		(4.6	)
Operating profit		19.0			20.9			25.8			20.4
Income from continuing operations	$	13.2		$	12.9		$	20.8		$	12.8
Income (loss) on discontinued operations	$	(0.1	)	$	0.2		$	(1.3	)	$	-
Net income	$	13.1		$	13.1		$	19.5		$	12.8
Net income (loss) attributable to noncontrolling interests	$	-		$	-			-		$	-
Net income (loss) attributable to AMCOL shareholders	$	13.1		$	13.1		$	19.5		$	12.8
Basic earnings per share attributable to AMCOL shareholders (A)	$	0.42		$	0.41		$	0.61		$	0.40
Diluted earnings per share attributable to AMCOL shareholders (A)	$	0.41		$	0.41		$	0.61		$	0.40

(A) Earnings per share (EPS) for each quarter is computed using the weighted-average number of shares outstanding during the quarter, while EPS for the year is computed using the weighted-average number of shares outstanding during the year. Thus, the sum of the EPS for each of the four quarters may not equal the EPS for the year.

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Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income (loss)	$ 64.9	$ 58.5	$ 28.5
Other comprehensive income (loss) -
Pension adjustment	(0.9)	(13.5)	(0.4)
Tax benefit (expense)	0.8	5.0	0.2
Unrealized gain (loss) on interest rate swap agreement	0.6	(2.4)	(3.6)
Tax benefit (expense)	0	0.9	1.3
Unrealized gain (loss) on available-for-sale securities	10.8	(10.3)	(11.4)
Tax benefit (expense)	(1.2)	1.0	4.1
Foreign currency translation adjustment	5.2	(24.8)	7.5
Total other comprehensive income (loss)	15.3	(44.1)	(2.3)
Comprehensive income (loss)	80.2	14.4	26.2
AMCOL Shareholders [Member]
Net income (loss)	65.1	58.5	29.2
Other comprehensive income (loss) -
Pension adjustment	(0.9)	(13.5)	(0.4)
Tax benefit (expense)	0.8	5.0	0.2
Unrealized gain (loss) on interest rate swap agreement	0.6	(2.4)	(3.6)
Tax benefit (expense)	0	0.9	1.3
Unrealized gain (loss) on available-for-sale securities	10.8	(10.3)	(11.4)
Tax benefit (expense)	(1.2)	1.0	4.1
Foreign currency translation adjustment	5.4	(24.1)	6.5
Total other comprehensive income (loss)	15.5	(43.4)	(3.3)
Comprehensive income (loss)	80.6	15.1	25.9
Noncontrolling Interest [Member]
Net income (loss)	(0.2)	0	(0.7)
Other comprehensive income (loss) -
Pension adjustment	0	0	0
Tax benefit (expense)	0	0	0
Unrealized gain (loss) on interest rate swap agreement	0	0	0
Tax benefit (expense)	0	0	0
Unrealized gain (loss) on available-for-sale securities	0	0	0
Tax benefit (expense)	0	0	0
Foreign currency translation adjustment	(0.2)	(0.7)	1.0
Total other comprehensive income (loss)	(0.2)	(0.7)	1.0
Comprehensive income (loss)	$ (0.4)	$ (0.7)	$ 0.3

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Employee Benefit Plans (Details 5) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Recognized in Other Comprehensive Income:
Net actuarial loss (gain)	$ 2.1	$ 13.7
Amortization of net actuarial loss (gain)	(1.1)	(0.1)
Amortization of prior service cost (credit)	(0.1)	(0.1)
Total change in other comprehensive income	$ 0.9	$ 13.5

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Segment, Geographic, and Market Information

12 Months Ended

Dec. 31, 2012

Segment, Geographic, and Market Information [Abstract]

Segment, Geographic, and Market Information

(2)          Segment, Geographic, and Market Information

We determine our operating segments based on the discrete financial information that is regularly evaluated by our chief operating decision maker, our President and Chief Executive Officer, in deciding how to allocate resources and in assessing performance. Our reportable measure of profit or loss for each segment is operating profit, which is defined as net sales less cost of sales and selling, general and administrative expenses related to a segment's operations. The costs deducted to arrive at operating profit do not include several items, such as net interest or income tax expense.

Our five segments are as follows:

· Performance materials - mines, processes and distributes minerals and products for use in various industrial and consumer markets, including metalcasting, pet care, laundry care, and drilling industries;

· Construction technologies - provides services relating to and processes and distributes clay-based and other products for use as a moisture barrier in commercial construction, landfill liners and in a variety of other industrial and commercial applications;

· Energy services - provides a variety of services and equipment rentals for both onshore and offshore applications to customers in the oil and natural gas industry;

· Transportation - includes a long-haul trucking business and a freight brokerage business that provides services domestically to our subsidiaries as well as third-party customers; and

· Corporate – intersegment sales are not material and are eliminated in our corporate segment. These are most notably sales between our transportation segment and our performance materials and construction technologies segments as well as sales between our performance materials segment to our construction technologies and energy services segments. Corporate segment also includes expenses associated with certain research and development, management, benefits and information technology activities.

Segment assets are those assets used within each segment. Corporate assets include assets used in the operation of this segment as well as those used by or shared amongst our segments, including certain cash and cash equivalents, fixed assets, assets associated with certain employee benefit plans, and other miscellaneous assets.

The following table sets forth certain financial information as of and for the years ended December 31, 2012, 2011 and 2010:

	2012			2011			2010
Net sales:
Performance materials	$	491.9		$	476.7		$	416.5
Construction technologies		223.1			251.9			225.5
Energy services		257.3			194.7			153.6
Transportation		44.0			54.1			52.2
Intersegment sales		(30.7	)		(33.6	)		(21.5	)
Total		985.6			943.8			826.3
Operating profit (loss):
Performance materials	$	76.3		$	67.1		$	53.5
Construction technologies		15.6			17.3			20.4
Energy services		28.7			21.3			13.7
Transportation		0.8			2.2			2.4
Corporate		(23.3	)		(21.8	)		(21.0	)
Total		98.1			86.1			69.0
Assets:
Performance materials	$	454.0		$	430.8		$	410.4
Construction technologies		157.6			159.4			161.0
Energy services		225.8			194.7			172.5
Transportation		4.0			3.9			4.0
Corporate		69.2			60.3			59.4
Total		910.6			849.1			807.3
Depreciation, depletion and amortization:
Performance materials	$	19.6		$	20.6		$	17.2
Construction technologies		5.5			5.4			5.4
Energy services		17.1			13.3			11.9
Transportation		0.1			0.1			-
Corporate		3.0			2.7			1.8
Total		45.3			42.1			36.3
Capital expenditures:
Performance materials	$	29.4		$	27.3		$	29.7
Construction technologies		8.3			8.3			2.6
Energy services		31.5			23.1			13.2
Transportation		0.1			0.2			0.1
Corporate		5.2			2.1			1.7
Total		74.5			61.0			47.3
Research and development expenses:
Performance materials	$	7.2		$	6.5		$	5.9
Construction technologies		2.3			2.3			2.3
Energy services		0.9			0.2			0.7
Corporate		-			0.1			0.3
Total		10.4			9.1			9.2

The following table sets forth certain geographic financial information as of and for the three years ending December 31st. EMEA includes the European, Middle East and African geographic regions. Geographic sales and operating profit are determined based on origin of the sale as opposed to destination of the sale. Inter-regional sales and operating profit are eliminated in Americas.

	2012		2011		2010
Sales to unaffiliated customers shipped from:
Americas	$	630.7	$	590.0	$	516.9
EMEA		191.6		220.1		185.6
Asia Pacific		163.3		133.7		123.8
Total		985.6		943.8		826.3
Operating profit from sales from:
Americas	$	65.5	$	57.5	$	45.8
EMEA		10.4		10.3		5.6
Asia Pacific		22.2		18.3		17.6
Total		98.1		86.1		69.0
Accounts receivable in:
Americas	$	109.9	$	112.3	$	106.0
EMEA		45.3		51.9		46.5
Asia Pacific		47.5		40.2		37.3
Total		202.7		204.4		189.8
Property, plant, equipment, and mineral rights and reserves in:
Americas	$	134.8	$	116.0	$	107.7
EMEA		112.3		108.7		114.3
Asia Pacific		54.8		48.8		49.7
Total		301.9		273.5		271.7
Identifiable assets in:
Americas	$	448.3	$	420.4	$	428.7
EMEA		303.3		289.4		265.5
Asia Pacific		159.0		139.3		113.1
Total		910.6		849.1		807.3

Net sales by product line for each fiscal year are as follows:

	2012		2011		2010
Metalcasting	$	265.5	$	247.3	$	196.7
Oilfield services		257.3		194.7		153.6
Specialty materials		106.6		116.8		112.7
Lining technologies		90.5		104.4		111.0
Building materials		78.5		80.7		58.7
Pet products		52.9		56.1		62.0
Basic minerals		55.2		48.2		43.8
Contracting services		18.8		36.0		31.0
Drilling products		38.2		31.4		26.1
Transportation		22.1		28.2		30.7
Total		985.6		943.8		826.3

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Goodwill and Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Schedule of the balance of goodwill by segment and the activity occurring in the past two fiscal years
Balance at beginning of the period	$ 69.5	$ 70.9
Change in goodwill relating to:
Sale of business		(0.2)
Foreign exchange translation	0.7	(1.2)
Total changes	0.7	(1.4)
Balance at ending of the period	70.2	69.5
Performance Materials [Member]
Schedule of the balance of goodwill by segment and the activity occurring in the past two fiscal years
Balance at beginning of the period	17.4	18.2
Change in goodwill relating to:
Sale of business		0
Foreign exchange translation	0.4	(0.8)
Total changes	0.4	(0.8)
Balance at ending of the period	17.8	17.4
Construction Technologies [Member]
Schedule of the balance of goodwill by segment and the activity occurring in the past two fiscal years
Balance at beginning of the period	21.1	21.7
Change in goodwill relating to:
Sale of business		(0.2)
Foreign exchange translation	0.3	(0.4)
Total changes	0.3	(0.6)
Balance at ending of the period	21.4	21.1
Energy Services [Member]
Schedule of the balance of goodwill by segment and the activity occurring in the past two fiscal years
Balance at beginning of the period	31.0	31.0
Change in goodwill relating to:
Sale of business		0
Foreign exchange translation	0	0
Total changes	0	0
Balance at ending of the period	$ 31.0	$ 31.0

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Leases (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Leases (Textual) [Abstract]
Rental payments under the terms of operating lease	$ 2.7	$ 2.6	$ 2.6
Percentage of increase under lease agreement (in hundredths)	2.00%
Total rent expense under operating lease agreements	$ 20.1	$ 14.4	$ 12.5

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Income Taxes (Details 5) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Activity related to unrecognized tax benefits
Balance at beginning of the year	$ 0	$ 0.8	$ 0.7
Increases related to prior year tax positions			0.1
Increases related to current year tax positions
Decreases related to the expiration of statue of limitation / settlement of audits		(0.8)
Balance at the end of the year	$ 0	$ 0	$ 0.8

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Significant Accounting Policies [Abstract]

Revenue by segment

The composition of consolidated revenues by segment is as follows:

	Percentage of Net Sales
	2012			2011			2010
Performance materials		50	%		51	%		50	%
Construction technologies		23	%		27	%		27	%
Energy services		26	%		21	%		19	%
Transportation		4	%		6	%		6	%
Intersegment sales		-3	%		-5	%		-2	%
		100	%		100	%		100	%

Reconciliation between basic and diluted earnings per share

Basic earnings per share is computed by dividing net income attributable to AMCOL shareholders by the weighted average number of common shares outstanding. Diluted earnings per share is similarly computed, except the denominator is increased to include the dilutive effects of stock compensation awards and other share equivalents. Stock compensation awards are antidilutive and therefore excluded from our diluted earnings per share calculation when their exercise would result in a net decrease in the weighted average number of common shares outstanding. A reconciliation between the shares used to compute basic and diluted earnings per share follows:

	2012		2011		2010
Weighted average common shares outstanding for the year		32,050,538		31,708,949		31,178,813
Dilutive impact of stock equivalents		347,827		436,824		368,778
Weighted average common and common equivalent shares for the year		32,398,365		32,145,773		31,547,591
Common shares outstanding at December 31		32,184,110		31,728,969		31,032,791
Weighted average anti-dilutive shares excluded from the computation of diluted earnings per share		402,485		189,768		470,097

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Derivative Instruments and Hedging Activities (Details) (Other Long-Term Liabilities [Member], Derivatives Designated As Hedging Instruments [Member], Interest rate swaps [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Other Long-Term Liabilities [Member] | Derivatives Designated As Hedging Instruments [Member] | Interest rate swaps [Member]
Liability Derivatives
Fair value of Derivative liability	$ (8.4)	$ (9.0)

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Leases (Tables)

12 Months Ended

Dec. 31, 2012

Leases [Abstract]

Summary of future minimum lease payments for operating leases

The following is a schedule of future minimum lease payments for operating leases (with initial terms in excess of one year) as of December 31, 2012:

	Minimum Lease
	Payments
	Domestic		Foreign		Total
Year ending December 31:
2013	$	17.4	$	2.6	$	20.0
2014		14.4		1.9		16.3
2015		11.5		1.1		12.6
2016		8.4		0.7		9.1
2017		6.0		0.5		6.5
Thereafter		45.4		1.1		46.5
Total		103.1		7.9		111.0

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Discontinued Operations

12 Months Ended

Dec. 31, 2012

Discontinued Operations [Abstract]

Discontinued Operations

(12)         Discontinued Operations

In September 2011, our construction technologies segment sold CETCO Contracting Services Company, which comprised our domestic contracting services business. The operations of this business, including the immaterial loss recorded on the sale, have been reclassified and are recorded net of income tax within Income (loss) on discontinued operations within our Consolidated Statement of Operations.