8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  June 11, 2010

OLIN CORPORATION

(Exact name of registrant as specified in its charter)

Virginia	1-1070	13-1872319
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

	190 Carondelet Plaza, Suite 1530 Clayton, MO (Address of principal executive offices)	63105-3443 (Zip Code)
(314) 480-1400 (Registrant's telephone number, including area code)

 (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

[  ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

[  ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

[  ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

[  ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 7.01.                      Regulation FD Disclosure.

In accordance with General Instruction B.2. of Form 8-K, the following information shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended. Olin disclaims any intention or obligation to update or revise this information.

Attached as Exhibit 99.1 and incorporated herein by reference, is a copy of the slides which will be presented at the Wells Fargo Securities 2010 Industrials Conference in New York City on June 14, 2010.

Item 9.01.                      Financial Statements and Exhibits.

Exhibit No.	Exhibit
99.1	Presentation slides for meeting on June 14, 2010.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 OLIN CORPORATION

 By:           /s/ George H. Pain

 Name:  George H. Pain

 Title:    Vice President, General Counsel and Secretary

Date:  June 11, 2010

EXHIBIT INDEX

Exhibit No.	Exhibit
99.1	Presentation slides for meeting on June 14, 2010.

EX-99.1

1

Wells Fargo Securities2010 Industrials ConferenceJune 14, 2010

Exhibit 99.1

2

Olin Representatives

John E. Fischer

Vice President & Chief Financial Officer

Larry P. Kromidas

Assistant Treasurer & Director, Investor Relations

lpkromidas@olin.com

(618) 258 - 3206

3

Company Overview

All financial data are for the quarter ending March 31, 2010 and the year ending 2009, and are presented in millions of U.S. dollars
except for earnings per share.Additional information is available on Olin’s websitewww.olin.com in the Investors section.

Winchester

Chlor Alkali

Third Largest North American
Producer of Chlorine and Caustic Soda

Q1 2010FY 2009

Revenue:$231$964

Income:$11$125

A Leading North American Producer
of Small Caliber Ammunition

Q1 2010FY 2009

Revenue:$131$568

Income:$20$69

Revenue:$362 $ 1,532

EBITDA:$44$292

Pretax Operating Inc.:$15 $210

EPS (Diluted):$.18$1.73

Q1 2010FY 2009

Olin

4

Olin Vision

To be a leading Basic Materials company delivering
attractive, sustainable shareholder returns

•Being the low cost, high quality producer, and the
#1 or #2 supplier in the markets we serve

•Providing excellent customer service and
advanced technological solutions

•Generating returns above the cost of capital over
the economic cycle

5

Olin Corporate Strategy

1.Build on current leadership positions in the

Chlor-Alkali and Ammunition businesses

•Improve operating efficiency and profitability

•Integrate downstream selectively

2.Allocate resources to the businesses that can create the
most value

3.Manage financial resources to satisfy legacy liabilities

Total Return to Shareholders in Top Third of S&P 1000

Return on Capital Employed Over Cost of Capital Through the Cycle

Olin Corporation Goal:Superior Shareholder Returns

6

Investment Rationale

•Leading North American producer of Chlor-Alkali

•Strategically positioned facilities

•Diverse end customer base

•Favorable industry dynamics

•Leading producer of industrial bleach with additional
growth opportunities

•Pioneer synergies improved chlor-alkali price structure

•Winchester’s leading industry position

7

Chlor Alkali Segment

ECU = Electrochemical Unit; a unit of measure reflecting the chlor alkali process outputs
of 1 ton of chlorine, 1.13 tons of 100% caustic soda and 0.3 tons of hydrogen.

N. American
Position

% 2009
Revenue

#3

#2

#1
Industrial

#1
Merchant

#1
Burner
Grade

8%

10%

4%

53%

24%

1%

Chlor Alkali Manufacturing Process

SALT+ELECTROLYSIS=OUTPUTS

Caustic Soda

(Sodium Hydroxide)

(Potassium Hydroxide)

Bleach

(Sodium Hypochlorite)

Chlorine

Salt

(

NaCl

)

or

Potcarb

(

KCl

)

KOH

HCl

(Hydrochloric Acid)

Hydrogen Gas

Caustic Soda

or KOH

Chlorine

Hydrogen

8

•Be the preferred supplier to chlor alkali customers in
addition to being the low cost producer

•Goal is to increase the value of the Chlor Alkali
Division to Olin through:

–Optimizing capacity utilization

–Higher margin downstream products

–Cost reduction and financial discipline

Olin’s Chlor Alkali Strategy

9

Source: CMAI/Olin - 2009 year-end figures

Oxy includes OxyVinyls and does not reflect the announced reduction of approximately 280,000 tons of capacity at their Taft, LA facility.

Olin includes 50% of Sunbelt joint venture.

Olin is #3 Chlor-alkali Producer

10

Bleach Plants

39

Tacoma, WA

Tracy, CA

Santa Fe Springs, CA

Henderson, NV

St. Gabriel, LA

Augusta, GA

Charleston, TN

Niagara Falls, NY

Becancour,

Quebec

Olin’sGeographicAdvantage

Source: Olin.

(1) The Becancour Plant has 275,000 short tons diaphragm and 65,000 short tons membrane capacity.

Location	Chlorine Capacity(-000’s Short Tons)
McIntosh, AL	415
Becancour, Quebec (1)	340
Niagara Falls, NY	286
Charleston, TN	248
St. Gabriel, LA	246
McIntosh, AL (50% of Sunbelt JV)	160
Henderson, NV	152
Augusta, GA	108
Total	1,955

•Access to regional customers including bleach and water treatment

•Access to alternative energy sources

–Coal, hydroelectric, nuclear, natural gas

11

Diverse Customer Base

Chlorine: “Organics” includes: Propylene oxide, epichlorohydrin, MDI, TDI, polycarbonates. “Inorganics” includes: Titanium dioxide and bromine.

Caustic Soda: “Organics” includes: MDI, TDI, polycarbonates, synthetic glycerin, sodium formate, monosodium glutamate. “Inorganics” includes: titanium dioxide, sodium silicates, sodium cyanide.

Chlorine

North American Industry

Olin

12

Product Pricing Has Been Dynamic

Source: CMAI.

North American Caustic Soda
Avg. Acquisition, US$/Short Ton

North American Chlorine
Contract, US$/Short Ton

13

Capacity Rationalization

Favorable Industry Dynamics

Target

Acquisition
Date

Position

2007

2004

•Acquired by Olin

•725,000 Short Tons ECU Capacity

•Then the #7 ranked producer in
North America

•4.7% of North American capacity

•Acquired by OxyChem

•859,000 Short Tons ECU Capacity

•Then the #7 ranked producer in
North America

•5.5% of North American capacity

•352,000 Short Ton ECU capacity
plant expansion on hold

•Plant located at Geismar, LA

Source: CMAI.

Pioneer

Vulcan

Westlake Chemical

Industry Consolidation

Delayed Capacity Expansion

2.0 mm MT
or 13% of
2000 net
capacity
reduction

mmMT

13.6

15.6

2009

2000

14

Chlor-Alkali Outlook

•Q2 2010 segment earnings are expected to more than double
Q1 results due to both higher volumes and higher ECU prices

•ECU Netbacks are expected to improve as higher caustic
soda prices more than offset lower chlorine prices reflecting
weak Q1 demand

•Q2 ECU prices will reflect the $75 December 2009 caustic
price increase.The April $80 caustic increase, being
aggressively pursued by the industry, will likely impact Olin
ECU prices in Q3

•May price increase announcements of $50 per ton on chlorine
and $35 to $55 per ton on caustic soda

15

Why Industrial Bleach?

•Olin is the leading North American bleach producer with a capacity of
250 million gallons (or 160,000 ECUs) in a 1 billion gallon industry

•Olin has 18% market share and current installed capacity to service
25% of the marketwith low-cost expansion opportunities

•Utilizes both chlorine and caustic soda in an ECU ratio

•Commands a $100 to $200/ton premium over ECU prices

•Demand is not materially impacted by economic cycles

•Regional nature of bleach business benefits Olin’s geographic diversity,
further enhanced by Olin’s proprietary railcar technology to reach more
distant customers

•2009 bleach volumes increase almost 18% over 2008 levels, and Olin
expects 2010 volumes to be 30% higher than 2009

16

Mercury Legislation

•On October 21, 2009, the U.S. House of Representatives
Committee on Energy and Commerce passed a bill that
would require chlor-alkali producers using mercury cell
technology to decide by 6/30/12 whether they would shut
down or convert those plants. The plants would need to be
shut down by 6/30/13 or converted by 6/30/15.

•During the third quarter of 2009, a companion bill was
introduced in the U.S. Senate

•To date, no votes have been taken on the House floor and the
Senate has not acted; outcome of legislation is uncertain

•Olin currently operates 2 mercury cell plants representing
356,000 ECUs or 18% of our total capacity *

* Olin’s total capacity includes 50% ownership of the SunBelt JV

17

Winchester Segment

Winchester Strategy

•Leverage existing strengths

–Seek new opportunities
to leverage the
legendary Winchester®
brand name

–Investments that
maintain Winchester as
the retail brand of
choice, and lower costs

•Focus on product line
growth

–Continue to develop
new product offerings

•Provide returns in excess of
cost of capital

	Hunters & Recreational Shooters
Products	Retail	Distributors	Mass Merchants	Law Enforcement	Military	Industrial
Rifle	ü	ü	ü	ü	ü
Handgun	ü	ü	ü	ü	ü
Rimfire	ü	ü	ü	ü	ü	ü
Shotshell	ü	ü	ü	ü	ü	ü
Components	ü	ü	ü	ü	ü	ü

Brands

18

Winchester’s Leading
Industry Position

•One of the three leading ammunition manufacturers
in the United States *

•Strong brand awareness

–Top 15 of all sporting goods brands

•Legendary brand image

–Positively associated with American heritage,
John Wayne, Teddy Roosevelt and
cowboy/western connotations

•Category leadership and expertise demonstrated by
selection to manage ammunition category for key,
national retailers

•Leading consumer goods marketer with an increased
presence on television and the Internet

•Innovator of market-driven new products

* Source: National Shooting Sports Foundation.

19

Favorable Industry Dynamics

Commercial

•Economic environment leading to personal security concerns

•Fears of increased gun/ammunition control due to change in administration

•New gun and ammunition products

•Strong hunting activity in weak economy, driven by cost/benefit of hunting
for food and increased discretionary time

Law
Enforcement

•Significant new federal agency contracts and solid federal law enforcement
funding

•Higher numbers of law enforcement officers and increase in federal agency
hiring

•Increased firearms training requirements among state and local law
enforcement agencies

Military

•Sustained high demand for small caliber ammunition due to wars in Iraq and
Afghanistan

•Commitment to maintaining the “Second-Source Program” to mitigate the
risk of a sole-source small caliber ammunition contract

20

Winchester

•Record Q1 2010 segment earnings of $20 million follows record
annual earnings of $69 million in calendar year 2009

•Long-term military and law enforcement agency contract sales
accounted for more than 30% of segment revenue in Q1 2010

•Recently awarded five additional military contracts with a total
value in excess of $70 million

•New gun ownership will translate into higher ammunition
consumption

•Commercial backlog at Q1 2010 is $159 million

•Military and Law Enforcement backlog is $120 million

21

Financial Highlights

•Strong Balance Sheet

–Q1 2010 cash balance approximately $410 million

–Pension plan remains fully funded with no contributions
expected until at least 2012

–2010 capital spending forecast to be 85% of depreciation

•Profit Outlook

–ECU pricing trends are positive

–Higher margin bleach business is growing

–Converted and expanded St. Gabriel facility is on-line and
reducing both operating and freight costs

–Winchester performance continues to be strong

22

Historical Financial Performance

Revenues($ millions)

EBITDA($ millions)

$1,040

$1,277

$1,765

$1,532

$201

$207

$335

$292

Note: EBITDA is Income from Continuing Operations Before Taxes, excluding Interest Expense, Interest Income, and Depreciation and Amortization expense.

-$107

-$103

-$96

$29

23

Potential Uses of Cash

•Olin’s financial policies have prioritized conservatism,
caution and prudence

•Current cash levels support:

•Annual working capital swings of $50 to $100 million

•Investments to expand bleach business including low salt,
high strength bleach plants

•Restructuring/downsizing of Chlor Alkali system necessitated
by low industry operating rates and mercury legislation

•Potential acquisitions

•$75 million notes due 2011

•Liquidity cushion for uncertain economic and credit
environments

24

Investment Rationale

•Leading North American producer of Chlor-Alkali

•Strategically positioned facilities

•Diverse end customer base

•Favorable industry dynamics

•Leading producer of industrial bleach with additional
growth opportunities

•Pioneer synergies improved chlor-alkali price structure

•Winchester’s leading industry position

25

Forward-Looking Statements

This presentation contains estimates of future
performance, which are forward-looking
statements and actual results could differ
materially from those anticipated in the forward-
looking statements.Some of the factors that could
cause actual results to differ are described in the
business and outlook sections of Olin’s Form 10-K
for the year ended December 31, 2009 and Form
10-Q for the quarter ended March 31, 2010. These
reports are filed with the U.S. Securities and
Exchange Commission.

26

Appendix

1892 founded in East Alton, IL providing
blasting powder to Midwestern coal mines

1898 formed Western Cartridge Company
to manufacture small arms ammunition

1931 acquires Winchester Repeating Arms

1940s & 1950s acquires cellophane, paper,
lumber & powder-actuated tools businesses

1892 founded in Saltville, VA to produce
soda ash.

1896 builds first chlor-alkali plant in US

1909 introduces first commercial
production of liquefied chlorine

1940s & 1950s builds plants in Lake
Charles, LA & McIntosh, AL, buys Squibb

1954 Merger creates the Olin Mathieson Chemical Corporation

1950s & 1960 entered into phosphates, aluminum, urethanes, TDI, skis, camping
equipment, homebuilding and expanded paper and forestry businesses

1970s to 2000 consolidation back to core businesses, spin-offs included forest
products (Olinkraft), military ordnance (Primex) and specialty chemicals (Arch)
and sold aluminum, TDI, urethanes and Squibb businesses

2007 acquired Pioneer and sold the Metals business, resulting in a company
similar in businesses to that which existed in the late 1890s

Olin IndustriesMathieson Chemical Corp.

27

Capacity Rationalization: 2000-2012

Source: Olin Data

Technology Key: DIA=Diaphragm, HG=Mercury, MB=Membrane, STB=Salt-to-Bleach.

Chlor Alkali Capacity Reductions

Chlor Alkali CapacityExpansions

Company

Location

Tech

ECU

COMPLETED3,827,000

Dow

Ft. Saskatchewan

DIA

526,000

Dow

Plaquemine, LA

DIA

375,000

Formosa Plastics

Baton Rouge, LA

DIA

201,000

La Roche

Gramercy, LA

DIA

198,000

Oxy Vinyls LP

Deer Park, TX

DIA/HG

395,000

Georgia Pacific

(3 locations)

DIA/HG

24,000

Pioneer

Tacoma, WA

DIA/MB

214,000

Atofina

Portland, OR

DIA/MB

187,000

St. Anne Chem

Nackawic, NB

MB

10,000

PPG

Lake Charles, LA

HG

280,000

Oxy (KOH)

Taft, LA

HG

210,000

Oxy

Delaware City, DE

HG

145,000

Olin (KOH)

Charleston, TN

HG

110,000

Holtra Chem

Orrington, ME

HG

80,000

Holtra Chem

Acme, NC

HG

66,000

Mexichem

Santa Clara, Mex

HG

40,000

Cedar Chem

Vicksburg, MS

HG

40,000

Olin

Dalhousie, NB

HG

36,000

Dow

Oyster Creek, TX

DIA

396,000

ERCO

Port Edwards, WI

HG

97,000

Olin

St. Gabriel, LA

HG

197,000

ANNOUNCED2,424,000

Dow1

Freeport, TX

DIA

2,279,000

Canexus

North Vancouver,BC

DIA

145,000

Reductions

6,251,000

CompletedAnnouncedTotal

Reductions(3,827,000)(2,424,000)(6,251,000)

Expansions2,096,0003,049,0005,145,000

Net Reduction(1,731,000)625,000(1,106,000)

Company

Location

Tech

ECU

COMPLETED2,096,000

Dow

Freeport, TX

MB

500,000

PPG

Lake Charles, LA

MB

280,000

Oxy

Geismer, LA

MB

210,000

Equachlor

Longview, WA

MB

88,000

Westlake

Calvert City, KY

MB

80,000

SunBelt

McIntosh, AL

MB

70,000

Mexichem

Santa Clara, Mex

MB

45,000

Oxy

Various Sites

MB

22,000

AV Nackawic

Nackawic, NB

MB

10,000

Kuehne

Delaware City, DE

STB

40,000

Trinity

Hamlet, NC

STB

40,000

Odyssey

Tampa, FL

STB

30,000

Shintech

Plaquemine, LA

MB

330,000

ERCO

Port Edwards, WI

MB

105,000

Olin

St. Gabriel

MB

246,000

ANNOUNCED3,049,000

Shintech

Plaquemine, LA

MB

252,000

Westlake2

Geismar, LA

MB

352,000

Allied Universal

Fort Pierce, FL

STB

40,000

Dow1

Freeport, TX

MB

2,225,000

Canexus

North Vancouver, BC

MB

180,000

Expansions

5,145,000

Annual caustic demand growth: 0.8% or 110,000 Tons/Year

1Dow’s announced Freeport, TX membrane conversion is on hold and under review; their supply agreement renewal with Shintech remains pending.

2 Westlake’s announced 352,000 ton green-field project has been postponed and is being reconsidered.