(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. This ASU will not have a material impact on our financial statements when we adopted it on January 1, 2012.

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 will 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 will not have a material impact on our financial statements.

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 77% of the revenue elimination in the year ended December 31, 2011 and 100% of the revenue elimination in the years ending December 31, 2010 and 2009, represent the elimination of shipping revenues between our transportation segment and its domestic sister companies.

Segments

The composition of consolidated revenues by segment is as follows:

	Percentage of Net Sales
	2011 Restated			2010 Restated			2009 Restated
Minerals and materials		51	%		50	%		49	%
Environmental		27	%		27	%		29	%
Oilfield services		21	%		19	%		17	%
Transportation		6	%		6	%		7	%
Intersegment sales		-5	%		-2	%		-2	%
		100	%		100	%		100	%

Further descriptions of our products, principal markets and the relative significance of our segment operations are included in Note 3.

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. We record these sales as revenue and the commission compensation 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 environmental and oilfield 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. 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 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 market 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. This review is a two step process. The first step involves comparing the estimated fair value of each reporting unit to the carrying value of that reporting unit. If the fair value of the reporting unit exceeds the carrying value, the goodwill is not considered impaired and the second step is unnecessary. If the fair value is less than the carrying value, the second step of the test would be performed to measure the amount of impairment loss to be recorded, if any.

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, 2011 and 2010.

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 within the income tax 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:

	2011		2010		2009
Weighted average common shares outstanding for the year		31,708,949		31,178,813		30,764,282
Dilutive impact of stock equivalents		436,824		368,778		269,432
Weighted average common and common equivalent shares for the year		32,145,773		31,547,591		31,033,714
Common shares outstanding at December 31		31,728,969		31,032,791		30,773,908
Weighted average anti-dilutive shares excluded from the computation of diluted earnings per share		189,768		470,097		938,546

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.