================================================================================
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549
                             ---------------------
                                  Form 10-K/A
(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, 2001

                                      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 1-1070

                               OLIN CORPORATION
            (Exact name of registrant as specified in its charter)
                      Virginia                      13-1872319
          (State or other jurisdiction of        (I.R.S. Employer
           incorporation or organization)       Identification No.)
           501 Merritt 7, P.O. Box 4500,
                     Norwalk, CT                    06856-4500
          (Address of principal executive           (Zip code)
                      offices)

      Registrant's telephone number, including area code: (203) 750-3000
                             ---------------------
          Securities registered pursuant to Section 12(g) of the Act:

                                              Name of each exchange
           Title of each class                 on which registered
           -------------------                ---------------------
              Common Stock,                  New York Stock Exchange
          par value $1 per share              Chicago Stock Exchange
                                              Pacific Exchange, Inc.
    Series A Participating Cumulative
     Preferred Stock Purchase Rights         New York Stock Exchange
                                              Chicago Stock Exchange
                                              Pacific Exchange, Inc.

                             ---------------------
       Securities registered pursuant to Section 12(g) of the Act: None
                             ---------------------
   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 [_]

   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. [X]

   As of January 31, 2002, the aggregate market value of registrant's common
stock, par value $1 per share held by non-affiliates of registrant was
approximately $619,096,100.

   As of January 31, 2002, 43,441,998 shares of the registrant's common stock
were outstanding.

                      DOCUMENTS INCORPORATED BY REFERENCE
 Portions of the following document are incorporated by reference in this Form
                           10-K as indicated herein:

                                         Part of 10-K into which
                     Document                 incorporated
                     --------            -----------------------
             Proxy Statement relating
                   to Olin's 2002               Part III
                 Annual Meeting of
                    Shareholders

================================================================================



                                    PART I

Item 1. BUSINESS

GENERAL

   Olin Corporation is a Virginia corporation, incorporated in 1892, having its
principal executive offices in Norwalk, Connecticut. It is a manufacturer
concentrated in three business segments: Chlor Alkali Products, Metals and
Winchester(R).

   Chlor Alkali Products, which represents 30% of 2001 sales, manufactures
chlorine and caustic soda, sodium hydrosulfite, hydrochloric acid and bleach
products. Metals products, which represents 49% of 2001 sales, include copper
and copper alloy sheet, strip and foil, welded tube, fabricated parts, metal
packages and stainless steel strip. Winchester products, which represents 21%
of 2001 sales, include sporting ammunition, canister powder, reloading
components, small caliber military ammunition and industrial cartridges.

PRODUCTS, SERVICES AND STRATEGIES

                             Chlor Alkali Products

 Products and Services

   We have been involved in the U.S. chlor alkali industry for more than 100
years and are a major participant in the U.S. chlor alkali market. According to
data from Chemical Market Associates, Inc. (CMAI), we are the fourth largest
chlor alkali producer in the United States, with capacity of 1.15 million
Electrochemical Units, or ECUs, per year, including 50% of the production from
our joint venture with PolyOne Corporation, which we refer to as our Sunbelt
joint venture. CMAI is a global petrochemical, plastics and fibers consulting
firm established in 1979. According to CMAI data, we are the largest producer
measured by production volume of chlorine and caustic soda in the eastern
United States, with facilities located in Mclntosh, Alabama, Charleston,
Tennessee, Augusta, Georgia, and Niagara Falls, New York. Since transportation
costs can be a significant part of the final cost of the product to the
customer, our close proximity to our customers is a competitive advantage.
Approximately two-thirds of our caustic soda production is high purity membrane
and rayon grade, which according to CMAI data normally commands a premium
selling price in the market.

   Chlorine and caustic soda are co-produced commercially primarily by the
electrolysis of salt. These co-products are produced simultaneously, and in a
fixed ratio of 1.0 ton of chlorine to 1.1 tons of caustic soda. The industry
refers to this as an ECU. Much of the chlorine produced in the U.S. is consumed
by the producing company to make downstream products. We sell a substantial
portion of the chlorine and caustic produced to third parties.

   Chlorine is used as a raw material in the production of thousands of
products, but a significant portion of U.S. chlorine production is consumed in
the manufacture of ethylene dichloride or EDC, a precursor for polyvinyl
chloride, or PVC. PVC is a plastic used in applications such as vinyl siding,
plumbing and automotive parts. Other U.S. end-use markets for chlorine include
chlorinated intermediates, isocyanates and water treatment. With the weakening
of the U.S. economy in 2000 and 2001, we have seen a consequent reduction in
demand for PVC, which is the largest single end-product application of chlorine.

   Caustic soda has a wide variety of end use applications, the largest of
which is in the pulp and paper industry. Caustic soda is also used in the
production of detergents and soaps, alumina and a variety of other inorganic
and organic chemicals.

   The chlor alkali industry is cyclical, both as a result of changes in demand
for each of the co-products and as a result of the large increments in which
new capacity is added. Because chlorine and caustic are produced in a fixed
ratio, the supply of one product can be constrained both by the physical
capacity of the production facilities and/or by the ability to sell the
co-product. Prices for both products respond rapidly to changes in supply and
demand. ECU prices experienced the most recent sustained peak in 1995, with the
subsequent trough coming in 1999. Prices peaked again in early 2001 and have
since retreated. In the period 1991-2001, average ECU prices as reported by
CMAI have been in excess of approximately $425 and as low as approximately $150.

   Raw materials, including electricity, represent approximately 60% of the
total cost of producing an ECU. Electricity is the single largest variable cost
component in the production of chlor alkali products. Our electricity costs
have been stable over the last ten years because we are supplied by utilities
that primarily utilize coal, hydroelectric and nuclear power and have
relatively minor exposure to natural gas. The commodity nature of this industry
places an added emphasis on cost management and we believe that we have managed
our manufacturing costs in a manner that makes us one of the low cost producers
in the industry. In addition, as market demand grows in the

                                      2



future, the design of our Sunbelt plant will enable us to expand capacity
cost-effectively. Electricity and salt are the major purchased raw materials
for our Chlor Alkali Products segment. Our Chlor Alkali Products segment buys
electricity from utilities that primarily produce power from coal,
hydroelectric and nuclear sources. We have contracts which are based on large
non-seasonal usage. The majority of our Chlor Alkali Products segment's salt is
produced from internal resources but we do purchase salt on the merchant
market. We have contracts for our purchased salt, which are also based on large
non-seasonal usage.

   We also manufacture a small volume of chlor alkali-related products and we
recently invested in capacity and product upgrades in these areas. These
products include chemically processed salt, hydrochloric acid, sodium
hypochlorite and hydrogen. We also sell sodium hydrosulfite into the paper,
textile and clay bleaching market.
   The following table lists products of our Chlor Alkali Products business,
with principal products on the basis of annual sales highlighted in bold face.



                                                                                                  Major Raw Materials
                                                                                                   & Components for
 Products & Services                      Major End Uses                      Plants & Facilities  Products/Services
 -------------------  ------------------------------------------------------- ------------------- --------------------
                                                                                         
Chlorine/caustic soda Pulp & paper processing, chemical manufacturing,         Augusta, GA        salt, electricity
                      water purification, manufacture of vinyl chloride,       Charleston, TN
                      bleach, swimming pool chemicals & urethane               McIntosh, AL
                      chemicals                                                Niagara Falls, NY
Sodium hydrosulfite   Paper, textile & clay bleaching                          Augusta, GA        caustic soda, sulfur
                                                                               Charleston, TN     dioxide
                                                                               Salto, Brazil
Sodium hypochlorite   Household cleaners, laundry bleaching, swimming          Augusta, GA        chlorine, caustic
                      pool sanitizers, semi-conductors, water treatment,       Charleston, TN     soda
                      textiles, pulp & paper and food processing               McIntosh, AL
                                                                               Niagara Falls, NY
Hydrochloric acid     Steel, oil & gas, plastics, organic chemical synthesis,  Augusta, GA        chlorine, hydrogen
                      water and wastewater treatment, brine treatment,         Charleston, TN
                      artificial sweeteners, pharmaceuticals, food             Niagara Falls, NY
                      processing and ore and mineral processing


 Strategies
   Continued Role as a Preferred Supplier to Merchant Market Customers.  Based
on our market research, we believe our Chlor Alkali Products business is viewed
as a preferred supplier by our merchant market customers. We will continue to
focus on providing quality customer service to our merchant market customers.
Our chlorine customers are more concentrated in the faster growing end-markets
for chlorine, such as inorganics and urethanes, and less concentrated in the
slower growing, but larger, organics and vinyls markets. We also plan to
continue developing relationships with these customers and other customers in
higher growth-end markets.
   Pursue Incremental Expansion Opportunities.  Recently, we have invested in
capacity and product upgrades in our chemically processed salt, hydrochloric
acid, sodium hypochlorite and hydrogen businesses. These expansions will
increase our captive use of chlorine while increasing the sales of these
co-products. These niche markets provide opportunities to upgrade chlorine and
caustic to higher value-added applications. We also have the opportunity, when
market conditions permit, to pursue incremental expansion at our Sunbelt Chlor
Alkali Partnership which we own equally with PolyOne Corporation (the Sunbelt
joint venture). The Sunbelt joint venture owns assets with productive
capability to manufacture 275 thousand tons of caustic soda and 250 thousand
tons of chlorine on an annual basis.

                                    Metals

 Products and Services
   We have been in the Metals business for approximately 85 years. Based on
Copper Development Association Inc. (CDA) data, we are a leading manufacturer
of brass and other copper alloy sheet and strip in the United States. CDA acts
for the U.S. copper and brass industry as a central authoritative source of
data and information pertaining to copper and its alloys. We also reroll and
form other metals. We believe that we hold the leading share of the U.S. copper
and copper alloy sheet, strip, plate and foil market. We refer to this market
as the copper sheet and strip market. We also believe we hold leading positions
for premium priced, high performance alloys in the United States. We
participate in non-U.S. markets for high performance alloys through exports,
technology licensing, joint ventures and local distribution. Participants in
the copper sheet and strip market include integrated brass mills, reroll mills
and distributors, with many participants engaging in multiple roles. We believe
that we are the largest U.S. participant in each of these categories. We
believe that our status as the largest U.S. participant affords us a favorable
industry position as one of the lowest cost producers. We also believe we are a
quality and service leader and a specialty product innovator.

                                      3



   All of our mills are both QS9000 and ISO 9000 certified. QS9000 is a quality
standard used by the major automotive companies to certify the production
quality of its suppliers. ISO 9000 is a set of five individual, but related
international standards on quality management and assurance developed by the
International Organization for Standardization to help companies effectively
document the quality system elements to be implemented to maintain an effective
quality system. We maintain many technological advantages over our competition
through our patent-protected technologies. We believe our high performance
alloys provide superior strength, conductivity and formability to customers in
the automotive, electrical, electronic and telecommunications industries. We
currently hold 29 U.S. patents associated with high performance alloys and 64
other U.S. patents related to various proprietary processing and technical
capabilities, many of which are also registered in foreign jurisdictions. To
further our global presence, we have established a joint venture with Yamaha
Corporation in Japan to produce high performance alloys and a technical
alliance with Wieland-Werke A.G of Germany under which we jointly develop new
high performance alloys and participate in an alloy licensing arrangement.
These two relationships provide us with greater global reach and enable us to
participate in the Asian and European high performance alloys markets. In June
2001, we acquired the stock of Monarch Brass & Copper Corp., which we refer to
as Monarch, for approximately $48 million. Monarch was a privately held,
specialty copper alloy manufacturer headquartered in Waterbury, CT, with annual
revenues of approximately $95 million in 2000. Monarch enhances our high
performance copper alloy production capabilities and expands our portfolio of
products.

   In addition, through sales of our clad metal, produced by a proprietary
cladding process, we believe we are a major supplier of coinage metal to the
U.S. Mint. We also supply coinage metal to the Canadian and Mexican
governments. Our Metals segment produces ammunition cartridge cups for use
captively in the manufacture of our Winchester sporting ammunition, which
constitutes a small portion of our total Metals segment output. We also sell
cartridge brass to other ammunition makers. This relationship with Winchester,
along with our growing fabrication business for select customers, provides us
with a significant customer base.

   Brass and other copper alloys are manufactured by melting copper together
with various combinations of zinc, lead or other metals. The resulting product
goes through a series of processes, including casting, hot rolling, milling,
cold rolling, annealing, cleaning and slitting. The principal end-use markets
for metal products include: automotive for connectors and radiators;
electronics for lead frames, connectors, wiring and telecommunications
applications; ammunition; coinage; and other applications such as builder's
hardware, plumbing supplies and welding tube for utility condensers and
industrial heat exchangers. The major raw materials used in our Brass business
are copper, zinc and other non-ferrous metals, purchased from merchants,
dealers and customers at market prices as posted on exchanges such as the
Commodity Metals Exchange (COMEX) and the London Metals Exchange (LME).

   Historically, the copper sheet and strip market has exhibited growth
consistent with the growth in the U.S. gross domestic product. In the late
1990's and in 2000, this market expanded at a rapid pace principally due to the
strength of the U.S. economy. From 1997 to 2000, the market grew at an
annualized growth rate of approximately 8%. In 2001 and into 2002, the copper
sheet and strip market has been facing lower volume demands because of the
economic downturn.

   The following table lists products and services of our Metals business, with
principal products on the basis of annual sales highlighted in bold face.



                                                                                             Major Raw Materials &
                                                                                                Components for
  Products and Services                 Major End Uses               Plants & Facilities/*/    Products/Services
  ---------------------    ---------------------------------------- ------------------------ ---------------------
                                                                                    
Copper & copper alloy      Electronic connectors, lead frames,      Bryan, OH                 copper, zinc &
 sheet & strip (standard & electrical components, communications,   East Alton, IL            other nonferrous
 high performance)         automotive, builders' hardware, coinage, Indianapolis, IN (idled)  metals
                           ammunition                               Seymour, CT
                                                                    Waterbury, CT (two
                                                                    locations)
                                                                    Iwata, Japan
                                                                    (Yamaha-Olin
                                                                    Metal Corporation)

Network of metals service  Electronic connectors, electrical        Allentown, PA             copper & copper
 centers                   components, communications,              Alliance, OH              alloy sheet, strip,
                           automotive, builders' hardware,          Caguas, PR                tube & steel &
                           household products                       Carol Stream, IL          aluminum strip
                                                                    Suwanee, GA
                                                                    Warwick, RI
                                                                    Watertown, CT
                                                                    Yorba Linda, CA
                                                                    Queretaro, Mexico
                                                                    (Olin Global Services
                                                                    Mexico, S.A. de C.V.)


                                      4





                                                                                                            Major Raw Materials &
                                                                                                               Components for
    Products and Services                         Major End Uses                     Plants & Facilities/*/   Products/Services
    ---------------------      ----------------------------------------------------- ---------------------  ---------------------
                                                                                                   
Posit-bond(R) clad metal       Coinage strip & blanks                                   East Alton, IL      cupronickel, copper
                                                                                                            & aluminum

Rolled copper foil,            Printed circuit boards, electrical & electronic,         Waterbury, CT       copper & copper
 Copperbond(R) foil, stainless automotive                                                                   alloy sheet, strip
 steel strip                                                                                                and foil and
                                                                                                            stainless steel strip

Copper alloy welded tube       Utility condensers, industrial heat exchangers,          Cuba, MO            copper alloy strip
                               refrigeration & air conditioning, builders' hardware,
                               automotive

Fabricated products            Builders' hardware, cartridge cases, transportation,     East Alton, IL      copper, copper alloy
                               household & recreational products                                            and stainless steel
                                                                                                            strip

High performance, high         All industry market segments;                            New Bedford, MA     all metals, metal
 reliability, hermetic metal   computer, communications, medical, industrial,                               alloys, metal matrix
 packages for                  instrumentation, automotive, consumer, aerospace                             composites, special
 microelectronics industry     and military                                                                 alloys and glasses


*  If site is not operated by Olin or a majority-owned, direct or indirect
   subsidiary, name of joint venture, affiliate or operator is indicated.

 Strategies

   Continue Profitable Growth Globally.  Our strategy is to be a leading
worldwide supplier of specialty copper-based products and related engineered
materials. We intend to achieve this goal by building our high performance
alloys business on a global basis. In 2001, we took a number of actions to
further develop our global presence, including expanding our high quality
integrated mill at East Alton, Illinois, acquiring Monarch and entering into a
technical alliance with Wieland-Werke under which we jointly develop new high
performance alloys and participate in an alloy licensing arrangement.

   Maintain Premier Specialty Product Innovator Position.  We believe that we
manufacture more high performance alloys than any other competitor, and we are
investing to expand our product line. Our specialty products include
proprietary high performance alloys and materials that meet strength, gauge,
formability and conductivity requirements for applications in our customers'
industries.

   Increase Cost Efficiencies.  We will continue to focus on achieving
economies of scale, improved manufacturing processes and innovation in pursuit
of cost reductions. We strive for profit improvements primarily through yield
improvements, increased equipment utilization and capacity enhancements.

   Continue Our Quality Leadership.  Our plants all maintain ISO 9000
certification and our integrated mills are QS9000 certified. We continue to
conduct detailed customer surveys, which indicate that our products satisfy or
exceed customer expectations. We have received many "supplier of the year"
awards from our customers, some of whom are among the largest or most respected
companies in their respective industries. For example, Square D and Universal
Fasteners each awarded us "supplier of the year" for 2000.

   Leverage Our Service and Distribution Leadership for Growth.  We believe
that we are one of the service and distribution leaders in the copper-based
metals industry. Our A.J. Oster distribution system extends throughout the
United States and also includes facilities in Puerto Rico and Mexico. We sell
directly from the mill to large volume customers, and to small and medium size
customers through A.J. Oster and other licensed distributors. We intend to
leverage our service leadership and our distribution network to improve our
just-in-time delivery services and our customized order capabilities.

                                  Winchester

 Products and Services

   Winchester is in its 135th year of operation. Winchester is a premier
developer and manufacturer of small caliber ammunition for sale to domestic and
international retailers, law enforcement agencies and domestic and
international militaries. We believe we are a leading U.S. producer of
ammunition for recreational shooters, hunters, law enforcement agencies and the
U.S. Armed Forces. Our legendary Winchester product line includes all major
gauges and calibers of shotgun shells, rimfire and centerfire ammunition for
pistols and rifles, canister powder, reloading components and industrial
cartridges. We believe we are the market leader in both shotshell and
centerfire pistol ammunitions. We expect the sporting ammunition industry to
show a relatively flat growth profile for 2002 to 2004.

                                      5



   Winchester has strong relationships throughout the sales and distribution
chain and strong ties to traditional dealers and distributors. Winchester has
built its business with key high volume mass merchants and specialty sporting
goods retailers. We have consistently developed industry-leading ammunition,
and in seven of the last ten years, including each of the past four years,
Winchester was recognized with the "Ammunition of the Year" award from the
Shooting Industry Academy of Excellence for its technological and design
leadership. In 2000, we received Wal-Mart's "Supplier of the Year" award in the
hunting and fishing category.

   Winchester purchases raw materials such as lead and zinc from merchants,
dealers and customers at market prices as posted on exchanges such as the COMEX
and LME. Winchester also purchases copper-based strip and cups from our Metals
segment. Winchester's other main raw material is propellant, which is purchased
predominately from one of the United States' largest propellant suppliers.

   The following table lists products and services of our Winchester business,
with principal products on the basis of annual sales highlighted in bold face.



                                                                                                    Major Raw
                                                                                                   Materials &
                                                                                                 Components for
Products & Services                           Major End Uses           Plants & Facilities      Products/Services
- -------------------                  --------------------------------- ------------------- ----------------------------
                                                                                  
Winchester(R) sporting               Hunters & recreational shooters,  East Alton, IL      brass, lead, steel, plastic,
  ammunition (shot-shells, small     law enforcement agencies          Geelong, Australia  propellant, explosives
  caliber centerfire & rimfire
  ammunition)
Small caliber military               Infantry and mounted weapons      East Alton, IL      brass, lead, propellant,
   ammunition                                                                              explosives
Government-owned arsenal             Maintenance of U.S. Army laid-    Baraboo,WI          subcontracted &
   operation                         away production plant                                 government-supplied
                                                                                           components
Industrial products (8 gauge loads & Maintenance applications in power East Alton, IL      brass, lead, plastic,
  powder-actuated tool loads)        & concrete industries, powder-    Geelong, Australia  propellant, explosives
                                     actuated tools in construction
                                     industry


 Strategies

   Leverage Existing Strengths.  Winchester will focus on seeking new
opportunities to leverage the legendary Winchester brand name and will continue
to offer a full line of ammunition products to the markets we serve, with
specific focus on investments that lower our costs and that make Winchester
ammunition the retail brand of choice.

   Focus on Product Line Growth.  With a long record of pioneering new product
offerings, Winchester has built a strong reputation as an industry innovator.
This includes the introduction of reduced-lead and non-lead products, which are
growing in popularity for use in indoor shooting ranges and for outdoor hunting.

INTERNATIONAL OPERATIONS

   We have sales offices and subsidiaries in various countries which support
the worldwide export of products from the United States as well as overseas
production facilities. In addition, we manufacture and distribute sodium
hydrosulfite in Brazil.

   Yamaha-Olin Metal Corporation manufactures high-performance copper alloys in
Japan for sale to the electronics industry throughout the Far East. One of our
subsidiaries loads and packs sporting and industrial ammunition in Australia.
See the Note "Segment Information" of the Notes to Consolidated Financial
Statements in Item 8, for geographic segment data. We are incorporating our
segment information from that Note into this section of our Form 10-K.

CUSTOMERS AND DISTRIBUTION

   During 2001, no single customer accounted for more than 5% of consolidated
sales. Sales to all U.S. government agencies and sales under U.S. government
contracting activities in total accounted for 8% of consolidated sales in 2001.
Products we sell to industrial or commercial users or distributors for use in
the production of other products constitute a major part of our total sales. We
sell some of our products, such as sporting ammunition and brass, to a large
number of users or distributors, while we sell others, such as chlorine and
caustic soda, in substantial quantities to a relatively small number of
industrial users. We discuss the customers for each of our three businesses in
more detail above under "Products and Services."

                                      6



   We market most of our products and services primarily through our sales
force and sell directly to various industrial customers, the U.S. Government
and its prime contractors, to wholesalers and other distributors.

   Because we engage in some government contracting activities and make sales
to the U.S. Government, we are subject to extensive and complex U.S. Government
procurement laws and regulations. These laws and regulations provide for
ongoing government audits and reviews of contract procurement, performance and
administration. Failure to comply, even inadvertently, with these laws and
regulations and with laws governing the export of munitions and other
controlled products and commodities could subject us or one or more of our
businesses to civil and criminal penalties, and under certain circumstances,
suspension and debarment from future government contracts and the exporting of
products for a specified period of time.

COMPETITION

   We are in active competition with businesses producing the same or similar
products, as well as, in some instances, with businesses producing different
products designed for the same uses. We are among the largest manufacturers or
distributors in the United States of ammunition, copper alloys and certain
chlor alkali products based on data provided by the Sporting Arms and
Ammunition Manufacturers' Institute (SAAMI), CDA and CMAI, respectively.
Founded in 1926, SAAMI is an association of the nation's leading manufacturers
of sporting firearms, ammunition and components. We encounter competition in
price, delivery, service, performance, product innovation and product
recognition and quality, depending on the product involved.

EMPLOYEES

   As of December 31, 2001, we had approximately 5,900 employees (excluding
approximately 100 employees at Government-owned, contractor-operated
facilities), with approximately 5,800 working in the United States and
approximately 100 working in foreign countries. Various labor unions represent
a majority of our hourly-paid employees for collective bargaining purposes.
Although some labor contracts extend for as long as five years, others are for
shorter periods, and we must re-negotiate those more frequently. A labor
contract for approximately forty employees at the Brass Division's Bryan, Ohio
facility expires in September 2002 and a labor contract for approximately 210
employees at the Chlor Alkali Products Division's McIntosh, Alabama facility
expires in April 2003. While we believe our relations with our employees and
their various representatives are generally satisfactory, we cannot assure you
that we can conclude these labor contracts or any other labor agreements
without work stoppages.

RESEARCH ACTIVITIES; PATENTS

   Our research activities are conducted on a product-group basis at a number
of facilities. Company-sponsored research expenditures were approximately $5
million during each of 2001 and 2000 and $7 million during 1999.

   We own or license a number of patents, patent applications and trade secrets
covering our products and processes, particularly for use in our Metals
segment. We believe that, in the aggregate, the rights under our patents and
licenses are important to our operations, but we do not consider any individual
patent or license or group of patents and licenses related to a specific
process or product to be of material importance to our total business.

RAW MATERIALS AND ENERGY

   We purchase the major portion of our raw material requirements. The
principal basic raw materials we purchase for our production of Chlor Alkali
Products are salt, electricity, sulfur dioxide, chlorine and hydrogen. Copper,
zinc and various other nonferrous metals are required for the Metals business.
Lead, brass and propellant are the principal raw materials used in the
Winchester business. We typically purchase our principal basic raw materials
pursuant to multiyear contracts. In the manufacture of ammunition, we use a
substantial percentage of our own output of cartridge brass. We provide
additional information with respect to specific raw materials in the tables
above under "Products and Services."

                                      7



   Electricity is the predominant energy source for our manufacturing
facilities. Most of our facilities are served by utilities which generate
electricity principally from coal, hydro and nuclear power.

ENVIRONMENTAL AND TOXIC SUBSTANCES CONTROLS



                                                              2001  2000  1999
                                                              ----  ----  ----
                                                               ($ in millions)
                                                                 
 Cash Outlays:
    Remedial and Investigatory Spending (Charged to Reserve). $ 26  $ 30  $ 21
    Capital Spending.........................................    3     3     3
    Plant Operations (Charged to Cost of Goods Sold).........   17    17    17
                                                              ----  ----  ----

 Total Cash Outlays.......................................... $ 46  $ 50  $ 41
                                                              ====  ====  ====

 Reserve for Environmental Liabilities:
    Beginning Balance........................................ $110  $125  $129
    Charges to Income........................................   14    15    17
    Business Acquired........................................    2    --    --
    Remedial and Investigatory Spending......................  (26)  (30)  (21)
                                                              ----  ----  ----

  Ending Balance............................................. $100  $110  $125
                                                              ====  ====  ====

   The establishment and implementation of federal, state and local standards
to regulate air, water and land quality have affected and will continue to
affect substantially all of our manufacturing locations. Federal legislation
providing for regulation of the manufacture, transportation, use and disposal
of hazardous and toxic substances has imposed additional regulatory
requirements on industry, particularly the chemicals industry. In addition,
implementation of environmental laws, such as the Resource Conservation and
Recovery Act and the Clean Air Act, has required and will continue to require
new capital expenditures and will increase operating costs. We employ waste
minimization and pollution prevention programs at our manufacturing sites.

   We are a party to various governmental and private environmental actions
associated with waste disposal sites and manufacturing facilities. We provide
for associated costs of investigatory and remedial activities in accordance
with generally accepted accounting principles governing probability and the
ability to reasonably estimate future costs. Charges to income for
investigatory and remedial efforts were material to operating results in the
past three years and may be material to net income in future years. Such
charges to income were $14 million, $15 million and $17 million in 2001, 2000
and 1999, respectively.

   Cash outlays for remedial and investigatory activities associated with
former waste sites and past operations were not charged to income but instead
to reserves established for such costs that we identified and expensed to
income in prior years. Cash outlays for normal plant operations for the
disposal of waste and the operation and maintenance of pollution control
equipment and facilities to ensure compliance with mandated and voluntarily
imposed environmental quality standards were charged to income. Historically,
we funded our environmental capital expenditures through cash flow from
operations and we expect to do so in the future.

   Our estimated environmental liability is attributable to approximately 60
sites, 18 of which were on the United States Environmental Protection Agency's
("USEPA") National Priority List ("NPL"). Ten sites accounted for approximately
73% of the reserve taken for such liabilities and, of the remaining sites, no
one site accounted for more than 2% of such liability. Two of these ten sites
are in the investigatory stage of the remediation process. In this stage,
remedial investigation and feasibility studies are conducted by either us or
other potentially responsible parties and a Record of Decision, which we also
refer to as a ROD, or its equivalent has not yet been issued. At four of the
ten sites, a ROD or its equivalent has been issued by either the USEPA or
responsible state agency and we, either alone or as a member of a group of
potentially responsible parties, were engaged in performing the remedial
measures required by that ROD. At the remaining four of the ten sites, part of
the site is subject to a ROD and another part is still in the investigative
stage of remediation. All ten sites were either former manufacturing facilities
or waste sites containing contamination generated by those facilities.

   Our consolidated balance sheets included liabilities for future
environmental expenditures to investigate and remediate known sites amounting
to $100 million at December 31, 2001, and $110 million at December 31, 2000, of
which $73 million and $85 million were classified as other noncurrent
liabilities, respectively. Those amounts did not take into account any
discounting of future expenditures or any consideration of insurance recoveries
or advances in technology. We reassess those liabilities periodically to
determine if environmental circumstances and/or remediation efforts and our
estimate of related costs have changed. As a result of these reassessments,
future charges to income may be made for additional liabilities.

                                      8



   Total environmental-related cash outlays for 2002 are estimated to be $50
million, of which $27 million is expected to be spent on remedial and
investigatory efforts, $5 million on capital projects and $18 million on normal
plant operations.

   Annual environmental-related cash outlays for site investigation and
remediation, capital projects and normal plant operations are expected to range
between approximately $40-$50 million over the next several years, $25 million
to $30 million of which is expected to be charged against reserves recorded on
our balance sheet. While we do not anticipate a material increase in the
projected annual level of our environmental-related costs, there is always the
possibility that such increases may occur in the future in view of the
uncertainties associated with environmental exposures. Environmental exposures
are difficult to assess for numerous reasons, including the identification of
new sites, developments at sites resulting from investigatory studies, advances
in technology, changes in environmental laws and regulations and their
application, the scarcity of reliable data pertaining to identified sites, the
difficulty in assessing the involvement and financial capability of other
potentially responsible parties and our ability to obtain contributions from
other parties and the lengthy time periods over which site remediation occurs.
It is possible that some of these matters (the outcomes of which are subject to
various uncertainties) may be resolved unfavorably against us. At December 31,
2001, we estimate we may have additional contingent environmental liabilities
of $40 million in addition to the amounts for which we have already taken a
reserve.

   See our discussion of our environmental matters in Item 3, "Legal
Proceedings" below, the Note "Environmental" of the Notes to Consolidated
Financial Statements contained in Item 8, and Item 7, "Management's Discussion
and Analysis of Financial Condition and Results of Operations."

ADDITIONAL FACTORS THAT MAY AFFECT FUTURE RESULTS

   In addition to the other information in this Form 10-K, the following
factors should be considered in evaluating Olin and our business. All of our
forward-looking statements should be considered in light of these factors.
Additional risks and uncertainties that we are unaware of or that we currently
deem immaterial also may become important factors that affect us.

   Sensitivity to Global Economic Conditions and Cyclicality--Our operating
results could be negatively affected during economic downturns.

   The business of most of our customers, particularly our automotive, coinage,
electrical connectors, telecommunications and distributor customers, are, to
varying degrees, cyclical and have historically experienced periodic downturns.
These economic and industry downturns have been characterized by diminished
product demand, excess manufacturing capacity and, in some cases, lower average
selling prices. Therefore, any significant downturn in our customers' markets
or in global economic conditions could result in a reduction in demand for our
products and could adversely affect our results of operations or financial
condition. As a result of the depressed economic conditions beginning in the
fourth quarter of 2000 and continuing throughout 2001, our vinyls, urethanes
and pulp and paper customers have had lower demand for our Chlor Alkali
Products, our automotive, coinage, electrical connectors, telecommunications
and housing customers have had lower demand for our Metals products and our
ammunition customers have had lower demand for our Winchester products. Lower
demand in all three of our business segments has adversely affected our
business and results of operations. Specifically, cutbacks in production of
automobiles and the further slowdown in the coinage and telecommunications
markets have adversely affected our results of operations in our Metals segment.

   Although we don't generally sell a large percentage of our products directly
to customers abroad, a large part of our financial performance is dependent
upon a healthy economy beyond the United States. Our customers sell their
products abroad. As a result, our business is affected by general economic
conditions and other factors in Western Europe and most of East Asia,
particularly China and Japan, including fluctuations in interest rates, market
demand, labor costs and other factors beyond our control. The demand for our
customers' products, and therefore, our products, is directly affected by such
fluctuations. Our joint venture, Yamaha-Olin Metal Corporation, located in
Japan, is particularly susceptible to these fluctuations. We cannot assure you
that events having an adverse effect on the industries in which we operate will
not occur or continue, such as a further downturn in the Western European,
Asian or world economies, increases in interest rates, unfavorable currency
fluctuations or a prolonged slowdown in the automotive, coinage, electrical
connectors or telecommunications industries.

   The terrorist attacks of September 11th created many economic and political
uncertainties and have had a negative impact on the global economy. The
long-term effects of these attacks on our future operating results and
financial condition are unknown. The national and international responses to
terrorist attacks and the potential for additional terrorist attacks or similar
events could have further material adverse effects on the economy in general,
on our industry and on our operations.

   Cyclical Pricing Pressure--Our profitability could be reduced by declines in
average selling prices in the industries in which we operate, particularly
declines in the ECU netback (gross price less freight, discounts, etc.).

                                      9



   Our historical operating results reflect the cyclical and sometimes volatile
nature of the chemical, metals and ammunition industries. We experience cycles
of fluctuating supply and demand in each of our business segments, particularly
in the Chlor Alkali Products division, which results in changes in selling
prices. Periods of high demand, tight supply and increasing operating margins
tend to result in increased capacity and production until supply exceeds
demand, generally followed by periods of oversupply and declining prices. The
industry build cycle, and its impact on industry pricing, has been most
pronounced in our Chlor Alkali Products segment. For example, in 1995 and 1996,
the chlor alkali industry was very profitable due to a tight supply/demand
balance, which resulted in both higher operating rates and higher ECU prices.
Higher profits led to reinvestment to expand capacity. This new capacity became
operational in 1998 and 1999, resulting in industry over-capacity. This
imbalance was exacerbated by falling demand as a result of the Asian financial
crisis. The supply/demand imbalance resulted in both lower operating rates and
lower ECU prices, and in 1999, many chlor alkali producers had operating
losses. The supply/demand balance improved due to improved economic conditions
in 2000 compared to 1999, and ECU prices increased in 2000 compared to 1999. As
the U.S. and world economies have deteriorated in 2001, the chlor alkali
industry again is experiencing a period of oversupply because of lower industry
demand for both chlorine and caustic.

   Price in the chlor alkali industry is a major supplier selection criterion.
We have little or no ability to raise prices in this large commodity market.
Decreases in the average selling prices of our products could have a material
adverse effect on our profitability. For example, assuming all other costs
remain constant, a $10 change in our ECU netback causes a corresponding $11
million increase or decrease in our annual revenues and pre-tax profits, when
we are operating at full capacity. While we strive to maintain or increase our
profitability by reducing costs through improving production efficiency,
emphasizing higher margin products, and by controlling selling and
administration expenses, we cannot assure you that these efforts will be
sufficient to offset fully the effect of changes in pricing on operating
results.

   Because of the cyclical nature of our businesses, we cannot assure you that
pricing or profitability in the future will be comparable to any particular
historical period, including the most recent period shown in our operating
results. We cannot assure you that the chlor alkali industry will not
experience adverse trends in the future, or that our operating results and/or
financial condition will not be adversely affected by them.

   Our Metals and Winchester segments are also subject to changes in operating
results as a result of cyclical pricing pressures, but to a lesser extent than
the Chlor Alkali Products segment. We generally pass changes in prices for
copper and other metals along to our customers as part of the negotiated price
of the finished product in most of our Metals segment product lines. However,
our Metals segment experiences manufacturing or pricing pressure with respect
to its tolling charges, and we cannot assure you that adverse trends in pricing
and margins will not affect operating results in the future. Similarly, selling
prices of ammunition are affected by changes in raw material costs and market
demand, and declines in average selling prices of our Winchester segment could
adversely affect our profitability.

   Indebtedness--Our indebtedness could adversely affect our financial
condition, limit our ability to grow and compete and prevent us from fulfilling
our obligation under our indebtedness.

   As of December 31, 2001, we had approximately $431 million of indebtedness
outstanding, excluding our guarantee of $97.5 million of indebtedness of our
Sunbelt joint venture. This does not include the $190 million of available
lines of credit on which we had nothing outstanding on that date. As of
December 31, 2001, our indebtedness represented 61.4% of our total
capitalization. On January 3, 2002, we entered into a new $140 million
three-year revolving senior credit facility, which we refer to as our senior
credit facility. Our senior credit facility replaced the $190 million credit
facilities available on December 31, 2001. As of March 1, 2002, we had $140
million of availability under our senior credit facility.

   Our indebtedness could adversely affect our financial condition, limit our
ability to grow and compete and prevent us from fulfilling our obligations
under our indebtedness. Despite our level of indebtedness, our senior credit
facility and the indenture governing our 9.125% Senior Notes permit us to
borrow additional money. If we borrow more money, as we intend to do in order
to grow our business, the risks related to our indebtedness could be increased
significantly.


   Debt Service--We may not be able to generate sufficient cash to service our
debt, which may require us to refinance our indebtedness or default on our
scheduled debt payments. Our ability to generate cash depends on many factors
beyond our control.

   Our ability to generate sufficient cash flow from operations to make
scheduled payments on our debt depends on a range of economic, competitive and
business factors, many of which are outside our control. We cannot assure you
that our business will generate sufficient cash flow from operations. If we are
unable to meet our expenses and debt obligations, we may need to refinance all
or a portion of our indebtedness on or before maturity, sell assets or raise
equity. We cannot assure you that we would be able to refinance any of our
indebtedness, sell assets or raise equity on commercially reasonable terms or
at all, which could cause us to default on our obligations and impair our
liquidity. Our inability to generate sufficient cash flow to satisfy our debt
obligations, or to refinance our obligations on commercially reasonable terms,
would have an adverse effect on our business, financial condition and results
of operations, as well as on our ability to satisfy our debt obligations. See
"Management's Discussion and Analysis of Financial Condition and Results of
Operations."

                                      10



   After taking into consideration our interest-rate swaps which convert our
fixed rate debt to a variable rate, at December 31, 2001 approximately 20% of
our indebtedness bears interest at variable rates that are linked to short-term
interest rates. If interest rates rise, our costs relative to those obligations
would also rise.

   Imbalance in Demand for Our Chlor Alkali Products--A loss of customers for
our chlorine or caustic soda could cause an imbalance in demand for these
products, which could have an adverse effect on our results of operations.

   Chlorine and caustic soda are produced simultaneously, and in a fixed ratio
of 1.0 ton of chlorine to 1.1 tons of caustic soda. The loss of a chlorine or
caustic soda customer could cause an imbalance in demand for our chlorine and
caustic soda products. An imbalance in demand may require us to reduce
production of both chlorine and caustic soda or take other steps to correct the
imbalance. Since we cannot store chlorine we may not be able to respond to an
imbalance in demand for these products as quickly or efficiently as some of our
competitors. If a substantial imbalance occurred, we would need to reduce
prices or take other actions that could have a negative impact on our results
of operations and financial condition.

   Competition--We face competition from other chemical, brass and ammunition
companies, which could adversely affect our revenues and financial condition.

   We are in active competition with companies producing the same or similar
products, as well as, in some instances, with companies producing different
products designed for the same uses. With respect to certain product groups,
such as ammunition and copper alloys, and with respect to certain chlor alkali
products, we are among the largest manufacturers or distributors in the United
States. We encounter competition in price, delivery, service, securing and
maintaining customers, performance, technology, product innovation, and product
recognition and quality, depending on the product involved. With respect to
certain products, some of our competitors are larger, have greater financial
resources and have less debt than we do. As a result, these competitors may be
better able to withstand a change in conditions within the industries in which
we operate and throughout the economy as a whole. If we do not compete
successfully, our business, financial condition and results of operations could
be adversely affected.

   Environmental Costs--We have ongoing environmental costs, which could also
have a material adverse effect on our financial condition.

   The nature of our operations and products, including the raw materials we
handle, exposes us to the risk of liabilities or claims with respect to
environmental matters. We have incurred, and will continue to incur,
significant costs and capital expenditures in complying with these
environmental laws and regulations. We discussed these costs in more detail
above under "Environmental and Toxic Substance Controls."

   The ultimate costs and timing of environmental liabilities are difficult to
predict. Liability under environmental laws relating to contaminated sites can
be imposed retroactively and on a joint and several basis. One liable party
could be held responsible for all costs at a site, regardless of fault,
percentage of contribution to the site or the legality of the original
disposal. We could incur significant costs, including cleanup costs, natural
resources damages, civil or criminal fines and sanctions and third-party
claims, as a result of past or future violations of, or liabilities under,
environmental laws. In addition, future events, such as changes to or more
rigorous enforcement of environmental laws, could require us to make additional
expenditures, modify or curtail our operations and/or install pollution control
equipment. See "Management's Discussion and Analysis of Financial Condition and
Results of Operations--Environmental Matters."

   Cost Increases--Our profitability could be reduced if we experience
higher-than-expected raw material, utility, transportation or logistics costs,
or if we fail to achieve our targeted cost reductions.

   Our operating results and profitability are dependent upon our continued
ability to control, and in some cases further reduce, our costs. If we are
unable to do so, or if costs outside of our control, particularly our costs of
raw material, utilities, transportation and similar costs increase beyond
anticipated levels, our profitability will decline.

   Production Hazards--Our facilities are subject to operating hazards, which
may disrupt our business.

   We are dependent upon the continued safe operation of our production
facilities. Our production facilities are subject to hazards associated with
the manufacture, handling, storage and transportation of chemical materials and
products and ammunition, including leaks and ruptures, explosions, fires,
inclement weather and natural disasters, unexpected utility disruptions or
outages, unscheduled downtime and environmental hazards. From time to time in
the past, we have had incidents that have temporarily shut down or otherwise
disrupted our manufacturing, causing production delays and resulting in
liability for workplace injuries and fatalities.

                                      11



Some of our products involve the manufacture and/or handling of a variety of
explosive and flammable materials. Use of these products by our customers could
also result in liability if an explosion, fire, spill or other accident were to
occur. We cannot assure you that we will not experience these types of
incidents in the future or that these incidents will not result in production
delays or otherwise have a material adverse effect on our business, financial
condition or results of operations.

   Tax Audits--We are currently subject to ongoing tax audits, which may result
in additional tax payments.

   We are currently subject to ongoing audits by the Internal Revenue Service
in connection with our Federal tax returns for the years from 1992 to 1998;
however, we have closed all tax years through 1991. Depending on the outcome of
these audits, we may be required to pay additional taxes, and any additional
taxes and related interest could be substantial. We have reserved amounts which
we believe will be sufficient for any adverse outcome, but the actual amount of
any such additional taxes and the timing of any such payments is uncertain.

Item 2. PROPERTIES

   We have manufacturing sites at 22 separate locations in 13 states and Puerto
Rico and two manufacturing sites and a distribution facility in three foreign
countries. Most manufacturing sites are owned although a number of small sites
are leased. We listed the locations at or from which our products and services
are manufactured, distributed or marketed in the tables set forth under the
caption "Products and Services."

   We lease warehouses, terminals and distribution offices and space for
executive and branch sales offices and service departments throughout the
country and overseas.

Item 3. LEGAL PROCEEDINGS

      (a) We continue to work with the USEPA with respect to remediation of
mercury contamination at the site of our former mercury cell Chlor Alkali
Products plant in Saltville, Virginia.

      Additional work is required including the covering of certain former
waste ponds and additional investigation and monitoring. We began work to cover
the ponds in 2001 and expect the work to be completed in 2003.

      We have met several times with the site's Natural Resources Trustees at
the Trustees' request regarding past releases from the Saltville site and the
nearby Holston River. We do not know whether the Trustees will claim any
natural resource damages associated with releases from the site. We believe
that any liability incurred in this matter will not be materially adverse to
our financial condition or liquidity. See "Environmental Matters" contained in
Item 7--"Management's Discussion and Analysis of Financial Condition and
Results of Operations."

      (b) As part of the continuing environmental investigation by federal,
state and local governments of waste disposal sites, we have entered into a
number of settlement agreements requiring us to contribute to the cost of the
investigation and cleanup of a number of sites. We expect this process of
investigation and cleanup to continue. See "Environmental Matters" contained in
Item 7--"Management's Discussion and Analysis of Financial Condition and
Results of Operations."

      (c) As a result of a recent internal audit of our East Alton, Illinois
facility, we determined that recent upgrades to certain operations may not have
been completed in full compliance with all USEPA regulations. Although our
facility received a modification to its air emissions permit from the Illinois
Environmental Protection Agency ("IEPA") for the upgrade, the permit
modification may not have addressed or completely addressed all applicable
regulations. On February 15, 2002, we disclosed to USEPA and IEPA that the
upgrade may not have been in compliance with all aspects of USEPA regulations.
We have offered to work with USEPA and IEPA to determine the nature and extent
of the issues and to correct them, if necessary. As part of the resolution of
this issue, we may need to enhance pollution control equipment at our East
Alton facility and pay some penalty. While we do not expect that the ultimate
resolution of this matter will have a material impact on our financial
position, we cannot, at this time, determine the financial impact, if any, on
our results of operations in a particular year.

      (d) We and our subsidiaries are defendants in various other legal actions
arising out of our normal business activities, none of which management
believes to be material.

                                      12



Item 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

   We did not submit any matter to a vote of security holders during the three
months ended December 31, 2001.

                  Executive Officers as of February 28, 2002



                                                                                                 Served as an
                                                                                                 Olin Officer
Name and Age                                                   Office                               Since
- ----------------------------------  ------------------------------------------------------------ ------------
                                                                                           
Donald W. Griffin (65)............. Chairman of the Board                                            1983
Joseph D. Rupp (51)................ President and Chief Executive Officer                            1996
Anthony W. Ruggiero (60)........... Executive Vice President and Chief Financial Officer             1995
Peter C. Kosche (59)............... Senior Vice President, Corporate Affairs                         1993
George B. Erensen (58)............. Vice President and General Tax Counsel                           1990
Mary E. Gallagher (36)............. Vice President and Controller                                    1999
Thomas M. Gura (56)................ Vice President and President, Brass and Winchester Divisions     1997
Johnnie M. Jackson, Jr. (56)*...... Vice President, General Counsel and Secretary                    1995
John L. McIntosh (47).............. Vice President and President, Chlor Alkali Products Division     1999
Janet M. Pierpont (54)............. Vice President and Treasurer                                     1990


   No family relationship exists between any of the above named executive
officers or between any of them and any of our Directors. Such officers were
elected to serve, subject to the By-laws, until their respective successors are
chosen.

   Each of the above-named executive officers, except M.E. Gallagher and J.L.
McIntosh, has served as an executive officer for not less than the past five
years.

   Mary E. Gallagher was elected a Corporate Vice President on April 27, 2000.
She was elected Controller on April 29, 1999. Prior to that time, and since she
joined Olin in May 1996, she served as Director, Accounting and Financial
Reporting. Prior to joining Olin, she served as a Senior Manager with KPMG LLP.

   John L. McIntosh was elected a Corporate Vice President on February 1, 1999
and also serves as President, Chlor Alkali Products Division. Prior to that
time, since 1997, he served as Vice President, Operations for Olin's specialty
chemicals operations. He also served as Vice President, Manufacturing and
Engineering for Chlor Alkali and was Director of Manufacturing, Engineering and
Purchasing for that division from 1991 through 1997.

*  Effective March 1, 2002, Johnnie M. Jackson, Jr. retired from his position
   as Vice President, General Counsel and Secretary.

                                    PART II

Item 5.  MARKET FOR THE REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER
         MATTERS

   As of January 31, 2002, we had approximately 7,500 record holders of our
common stock.

   Our common stock is traded on the New York Stock Exchange, Chicago Stock
Exchange and Pacific Exchange, Inc.

                                      13



   The high and low sales prices of our common stock during each quarterly
period in 2001 and 2000 are listed below. A dividend of $0.20 per common share
was paid during each of the four quarters in 2001 and 2000.



                                                                    First  Second   Third  Fourth
                                                                   Quarter Quarter Quarter Quarter
                                                                   ------- ------- ------- -------
                                                                               
2001
- ----
Market price of common stock per New York Stock Exchange composite
  transactions
   High........................................................... $22.75   22.53   18.00   17.25
   Low............................................................  17.76   14.90   13.30   12.05
2000
- ----
Market price of common stock per New York Stock Exchange composite
  transactions
   High........................................................... $21.50   19.25   18.00   23.19
   Low............................................................  14.88   14.19   15.00   16.00


                                      14



Item 6. SELECTED FINANCIAL DATA

NINE-YEAR FINANCIAL SUMMARY


 ($  and shares in millions, except per     2001        2000        1999        1998        1997         1996         1995
               share data)                 ------      ------      ------      ------      -------      -------      -------
                                                                                                
Operations
Sales..................................... $1,271      $1,549      $1,395      $1,504      $ 1,572      $ 1,817      $ 1,886
Cost of Goods Sold........................  1,122       1,277       1,215       1,239        1,276        1,455        1,541
Selling and Administration................    116         127         122         123          132          155          153
Research and Development..................      5           5           7          10            8           20           17
Gain (Loss) on Sales and Restructurings
 of Businesses and Spin-off Costs.........    (39)         --          --         (63)          --          179           --
Interest Expense..........................     17          16          16          17           24           27           33
Interest and Other Income (Expense).......     15           7          (8)          7           15           13           (5)
                                           ------      ------      ------      ------      -------      -------      -------
Income (Loss) from Continuing
 Operations Before Taxes..................    (13)        131          27          59          147          352          137
Income Tax Provision (Benefit)............     (4)         50          10          21           50          125           47
                                           ------      ------      ------      ------      -------      -------      -------
Income (Loss) from Continuing Operations..     (9)         81          17          38           97          227           90
Discontinued Operations...................     --          --           4          40           56           53           50
                                           ------      ------      ------      ------      -------      -------      -------
Net Income (Loss).........................     (9)         81          21          78          153          280          140
                                           ======      ======      ======      ======      =======      =======      =======
Financial Position
Working Capital...........................    281/(1)/    253/(1)/    252/(1)/    225/(1)/     273/(1)/     385/(1)/      24
Property, Plant and Equipment, Net........    477         483         468         475          517          400          580
Total Assets..............................  1,219       1,123       1,063       1,589        1,707        2,118        1,963
Capitalization:
   Short-Term Debt........................    102/(1)/      1/(1)/      1/(1)/      1/(1)/       8/(1)/     137/(1)/     122
   Long-Term Debt.........................    329/(1)/    228/(1)/    229/(1)/    230/(1)/     262/(1)/     271/(1)/     406
   Shareholders' Equity...................    271         329         309         790          879          946          841
                                           ------      ------      ------      ------      -------      -------      -------
Total Capitalization......................    702         558         539       1,021        1,149        1,354        1,369
                                           ======      ======      ======      ======      =======      =======      =======
Per Share Data
Net Income (Loss):
  Basic:
   Continuing Operations..................  (0.22)       1.80        0.36        0.79         1.91         4.30         1.71
   Discontinued Operations................     --          --        0.09        0.85         1.11         1.04         1.04
                                           ------      ------      ------      ------      -------      -------      -------
   Net Income (Loss)......................  (0.22)       1.80        0.45        1.64         3.02         5.34         2.75
                                           ======      ======      ======      ======      =======      =======      =======
Diluted:                                       --
   Continuing Operations/(2)/.............  (0.22)       1.80        0.36        0.79         1.90         4.26         1.70
   Discontinued Operations................     --          --        0.09        0.84         1.10         1.01         0.97
                                           ------      ------      ------      ------      -------      -------      -------
   Net Income (Loss)......................  (0.22)       1.80        0.45        1.63         3.00         5.27         2.67
                                           ======      ======      ======      ======      =======      =======      =======

Cash Dividends:
   Common (historical)....................   0.80        0.80        0.90        1.20         1.20         1.20         1.20
   Common (continuing operations).........   0.80        0.80        0.80        0.80         0.80         0.80         0.80
   ESOP Preferred (annual rate)...........     --          --          --          --           --         5.97         5.97
   Series A Preferred (annual rate).......     --          --          --          --           --           --         3.64
Shareholders' Equity/(3)/.................   6.24        7.48        6.87       17.25        17.98        18.13        17.03
Market Price of Common Stock:
   High...................................  22.75       23.19       19.88       49.31        51.38        48.00        38.63
   Low....................................  12.05       14.19        9.50       23.88        35.38        34.88        24.25
   Year End...............................  16.14       22.13       19.81       28.31        46.88        37.63        37.13
Other
Capital Expenditures......................     65          95          73          78           76           74          116
Depreciation..............................     85          79          78          76           76           84           77
Common Dividends Paid.....................     35          36          41          58           61           60           57
Purchases of Common Stock.................     14          20          11         112          163           --           --
Current Ratio.............................    1.8         1.9         2.0         1.8          1.8          1.6          1.0
Total Debt to Total Capitalization/(4)/...   61.4%       41.0%       42.7%       22.6%        23.5%        30.1%        37.9%
Effective Tax Rate........................   30.8%       38.2%       37.0%       35.6%        34.0%        35.5%        34.3%
Average Common Shares Outstanding.........   43.6        44.9        45.4        47.9         50.5         50.0         47.6
Shareholders..............................  7,500       8,000       8,600       9,200       10,600       11,300       12,000
Employees/(5)/............................  5,900       6,700       6,700       6,400        6,600        6,200        7,200



 ($  and shares in millions, except per     1994      1993
               share data)                 -------  --------
                                              
Operations
Sales..................................... $ 1,686  $  1,507
Cost of Goods Sold........................   1,425     1,447
Selling and Administration................     139       135
Research and Development..................      18        21
Gain (Loss) on Sales and Restructurings
 of Businesses and Spin-off Costs.........      --       (26)
Interest Expense..........................      27        29
Interest and Other Income (Expense).......      --        --
                                           -------  --------
Income (Loss) from Continuing
 Operations Before Taxes..................      77      (151)
Income Tax Provision (Benefit)............      26       (60)
                                           -------  --------
Income (Loss) from Continuing Operations..      51       (91)
Discontinued Operations...................      40        (1)
                                           -------  --------
Net Income (Loss).........................      91       (92)
                                           =======  ========
Financial Position
Working Capital...........................      88       (15)
Property, Plant and Equipment, Net........     540       534
Total Assets..............................   1,749     1,685
Capitalization:
   Short-Term Debt........................      29       113
   Long-Term Debt.........................     418       449
   Shareholders' Equity...................     749       596
                                           -------  --------
Total Capitalization......................   1,196     1,158
                                           =======  ========
Per Share Data
Net Income (Loss):
  Basic:
   Continuing Operations..................    0.87     (2.82)
   Discontinued Operations................    0.96     (0.03)
                                           -------  --------
   Net Income (Loss)......................    1.83     (2.85)
                                           =======  ========
Diluted:
   Continuing Operations/(2)/.............    0.87     (2.82)
   Discontinued Operations................    0.96     (0.03)
                                           -------  --------
   Net Income (Loss)......................    1.83     (2.85)
                                           =======  ========

Cash Dividends:
   Common (historical)....................    1.10      1.10
   Common (continuing operations).........    0.73      0.73
   ESOP Preferred (annual rate)...........    5.97      5.97
   Series A Preferred (annual rate).......    3.64      3.64
Shareholders' Equity/(3)/.................   15.43     13.62
Market Price of Common Stock:
   High...................................   30.13     25.25
   Low....................................   23.00     20.00
   Year End...............................   25.75     24.75
Other
Capital Expenditures......................      80        80
Depreciation..............................      78        74
Common Dividends Paid.....................      44        42
Purchases of Common Stock.................      --        --
Current Ratio.............................     1.2       1.0
Total Debt to Total Capitalization/(4)/...    36.5%     46.8%
Effective Tax Rate........................    33.2%     40.0%
Average Common Shares Outstanding.........    41.0      38.2
Shareholders..............................  12,100    13,000
Employees/(5)/............................   7,500     7,100

- ----------
   In December 1996, we sold our isocyanates business for $565 in cash. 1996
and prior include the operating results of the isocyanates business.

(1) Working Capital includes $165 ($57 in 2000, $21 in 1999, $50 in 1998, $157
    in 1997, $518 in 1996) of Cash and Cash Equivalents and $37 ($25 in 2000,
    1999 and 1998, $28 in 1997, $87 in 1996) of Short-Term Investments in 2001.
(2) Includes gain of $2.20 on sale of the isocyanates business in 1996.
(3) In 1994 and 1993, calculation is based on common shares and Series A
    Conversion Preferred Stock outstanding.
(4) Excluding reduction to equity for the Employee Stock Ownership Plan from
    1993 through 1996.
(5) Employee data exclude employees who work at
    government-owned/contractor-operated facilities.

                                      15



Item 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
         RESULTS OF OPERATIONS

BUSINESS BACKGROUND

   Our operations are concentrated in three businesses: Chlor Alkali Products,
Metals and Winchester. All three are capital intensive manufacturing businesses
with growth rates closely tied to the general economy. While each segment has a
commodity element to it, our ability to influence pricing is quite limited and
the portion of the business that is strictly commodity varies by division. Our
Chlor Alkali Products business is a commodity business where all supplier
products are identical and price is the major supplier selection criterion. We
have little or no ability to influence prices in this large, global commodity
market. Cyclical price swings, driven by changes in supply/demand, can be
abrupt and significant and, given capacity in our Chlor Alkali Products
business, can lead to very significant changes in our overall profitability.
While a majority of Metals sales are of a commodity nature, this business has a
significant volume of specialty engineered products targeted for specific
end-use markets. In these applications, technical capability and performance
differentiate the product and play a significant role in product selection and
thus price is not the only selection criterion. Winchester also has a commodity
element to its business but a majority of Winchester ammunition is sold as
consumer branded product where there is the opportunity to differentiate
certain offerings through innovative new product development and enhanced
product performance. While competitive pricing versus other branded ammunition
products is important, it is again not the only factor in product selection.

CONSOLIDATED RESULTS OF OPERATIONS



                                                     2001          2000         1999
                                                       ------        ------      ------
                                                    ($ in millions, except per share data)
                                                                      
       Sales....................................... $1,271        $1,549       $1,395
       Gross Margin................................    149           272          180
       Selling and Administration..................    116           127          122
       Restructuring Charge........................     39            --           --
       Interest Expense, net.......................     16            14           14
       Other Income................................     22             3            1
       Income (Loss) from Continuing Operations....     (9)           81           17
       Net Income (Loss)...........................     (9)           81           21
       Diluted Earnings (Loss) Per Common Share:
          Income (Loss) from Continuing Operations. $(0.22)       $ 1.80       $ 0.36
          Net Income (Loss)........................ $(0.22)       $ 1.80       $ 0.45

- ----------
   For the full year 2001, we recorded restructuring charges totaling $39
million pretax and unusual items of $3 million pretax for a total of $42
million pretax.

   In the third quarter, we recorded a pretax charge for restructuring and
unusual items of $29 million primarily for costs associated with a salaried
workforce reduction through an early retirement incentive program. Cost of
Goods Sold and Other Income included $2 million and $1 million respectively, of
unusual items. Cost of Goods Sold included the write-off of inventory
associated with cancelled customer orders. Other Income included the write-off
of an investment in an E-commerce company because the company declared
bankruptcy and was dissolved and therefore had no future value. The
third-quarter restructuring charge of $26 million related to the 190 employees
retiring in connection with the retirement program and represented primarily
pension and postretirement benefit curtailment losses and severance. As of
December 31, 2001, 150 employees had retired and the remainder will retire in
the first quarter of 2002. The severance of $4 million recorded in Accrued
Liabilities will be paid out of our operating cash flows over time.

   In the fourth quarter we recorded a restructuring charge of $13 million
pretax primarily for costs associated with idling our Indianapolis brass mill,
consolidating distribution operations of the recently acquired Monarch Brass &
Copper Corp. ("Monarch") with the A.J. Oster metals service center business,
and reducing staffing levels in Chlor Alkali Products. A significant portion of
the charge relating to the idling of the Indianapolis facility represented
pension and postretirement curtailment losses and severance for 200 employees.
Another portion of the charge related to 38 Chlor Alkali employees who accepted
our offer of a voluntary special separation program whereby employees accept a
voluntary lay off and receive full separation benefits and also receive their
accrued pension benefits at the same time. The balance of the restructuring
charge relates to costs associated with the consolidation of certain Monarch
facilities in order to optimize distribution operations. The severance and
fringe benefits of $8 million recorded in Accrued Liabilities will be paid out
of our operating cash flows over time.

                                      16



   In 2001, we were notified that we would receive shares of Prudential
Insurance Company as a result of its decision to demutualize from a mutual
company to a stock company. We recorded a gain of $11 million in other income
in 2001. We received the shares and immediately sold them in January 2002.

   At midnight on December 3, 2000, a work stoppage began at the Metals and
Winchester manufacturing facilities at East Alton, IL, after the union and we
were unable to agree on a new labor contract. After several weeks of
negotiations, the parties entered into a new labor contract and the union
workers returned to work on January 23, 2001. The work stoppage had an adverse
impact in 2000 and 2001 on the profitability of the Metals and Winchester
operations, including product fulfillment issues, additional expenses and
contract settlement costs.

   In June 2000, we signed a letter of intent with Occidental Petroleum
Corporation, which we refer to as Occidental, to combine the companies' chlor
alkali and related businesses in a partnership. In October 2000, we announced
that the letter of intent had expired. The partnership negotiations were
discontinued primarily due to regulatory issues and certain other matters on
which the parties could not agree.

   On February 8, 1999, we completed the spin-off of our specialty chemicals
businesses as Arch Chemicals, Inc., which we refer to as Arch Chemicals. The
results of operations reflect Arch Chemicals as discontinued operations for the
1999 period presented.

 2001 Compared to 2000

   Sales decreased 18% due to lower volumes (17%), metal values (1%) and
selling prices. Sales volumes were lower across all segments with the biggest
impact coming from the Metals segment, which was heavily impacted by a soft
economy, particularly in the automotive, electronics and telecommunications
industries and to a lesser extent by the strike at the East Alton, IL facility
in the first quarter of 2001. The price decrease was primarily related to lower
prices in the Metals and Winchester segments.

   Gross margin percentage decreased from 18% in 2000 to 12% in 2001 primarily
due to lower sales volumes.

   Selling and administration as a percentage of sales was 9% in 2001 up from
8% in 2000 due to the lower sales base in 2001 as a result of the factors noted
above. Selling and administration was $11 million lower than in 2000 primarily
due to lower incentive compensation costs ($15 million) and fees incurred in
2000 associated with the discontinued chlor alkali partnership negotiations ($3
million), partially offset by lower pension income ($2 million) in 2001 and
selling and administration expenses ($2 million) of Monarch, acquired in 2001.

   The decrease in operating results from the non-consolidated affiliates was
due primarily to the lower operating results from the Sunbelt joint venture ($9
million loss in 2001; breakeven in 2000), which was adversely impacted by lower
chlorine pricing.

   In 2001, other income included the gains on the demutualization of
Prudential Insurance of $11 million and on the sale of excess real estate
property of $6 million.

   The effective tax rate decreased to 30.8% from 38.2% due to operating
losses, carryover of foreign tax rate differential and an increase in the
valuation allowance.

 2000 Compared to 1999

   In 2000 sales increased 11% due to increased selling prices (7%) and volumes
(2%) and higher metal values (2%). Selling prices were higher across all
segments with the biggest impact related to higher Electrochemical Unit ("ECU")
netbacks (gross price less freight, discounts, etc.) in the Chlor Alkali
Products segment. The increase in sales volumes was related to the Metals
segment.

   Gross margin percentage increased from 13% in 1999 to 18% in 2000 primarily
due to higher ECU prices.

                                      17



   Selling and administration as a percentage of sales was 8% in 2000, down
from 9% in 1999, due to the higher sales base in 2000 as a result of the
factors noted above. Selling and administration was $5 million higher than in
1999 due to higher administration expenses, primarily higher incentive
compensation costs ($7 million) and the fees incurred in 2000 associated with
the discontinued chlor alkali partnership negotiations with Occidental ($3
million), offset in part by higher pension income ($6 million).

   The increase in operating results from the non-consolidated affiliates was
due primarily to the improved operating results from the Sunbelt joint venture
(breakeven in 2000; $13 million pretax loss in 1999), which was favorably
impacted by the higher ECU pricing.

   Research and development expenses decreased due to restructuring in the
fourth quarter of 1999 of the process technology department in the Chlor Alkali
Products segment.

   The effective tax rate increased to 38.2% from 37.0%. The increase was
attributable to lower tax benefits related to export sales and increased state
income taxes, partially offset by lower cost of company-owned life insurance
programs and a decrease in the valuation allowance related to state income tax
loss carryforward.

SEGMENT OPERATING RESULTS

   We define segment operating income as earnings before interest expense,
interest income, other income, restructuring charge and unusual items and
income taxes and include the operating results of non-consolidated affiliates.
Segment operating income includes an allocation of corporate operating
expenses. Segment operating results in 2001 exclude the restructuring charge
and unusual items ($42 million, pretax).

                             Chlor Alkali Products



                                               2001 2000 1999
                                               ---- ---- ----
                                               ($ in millions)
                                                
                  Sales....................... $384 $392 $336
                  Operating Income (Loss).....    8   27  (58)


 2001 Compared to 2000

   Sales decreased 2% from 2000 primarily due to lower volumes (5%) offset in
part by higher ECU netbacks (3%). Our average ECU netbacks in 2001 were
approximately $315, compared to $300 in 2000. The chlor alkali industry
participates in markets, such as vinyls, urethanes and pulp and paper, which
have been negatively impacted by poor economic conditions. These markets have
faced declining demand for their products, which in turn, negatively impacts
our products. Soft demand for chlorine in these markets, caused primarily by
the slowdown in the general economy, has led to reduced chlor alkali operating
rates across the industry. This weak demand forced operating rates to decline
to approximately mid to low 80% from 88% in 2000 and caused an erosion of
chlorine's pricing structure. This contributed to the decline in sales and
operating income in 2001. Also, operating income was lower in 2001 primarily
due to lower sales volumes ($14 million), higher manufacturing costs ($5
million) and losses from the Sunbelt joint venture ($9 million loss in 2001;
breakeven in 2000) due to lower chlorine prices, but offset in part by higher
ECU netbacks ($10 million). The increased manufacturing costs included higher
salt costs and higher fixed cost absorption due to lower production volumes.

 2000 Compared to 1999

   Sales and operating results in 2000 were higher than 1999 primarily due to
higher ECU netbacks and ongoing cost reduction initiatives. Average ECU
netbacks in 2000 were approximately $300, compared to $225 in 1999. While the
pricing cycle improved, demand for chlorine decreased particularly in the
second half of 2000, primarily due to the depressed vinyl market. This weak
demand along with higher electricity rates, forced industry operating rates to
decline (to approximately 88% in 2000 down from 95% in 1999), which impacted
the availability of caustic. Caustic demand was high and most suppliers were on
order control or allocation. This tight caustic market supported several price
increases, which more than offset the declining chlorine prices. Higher selling
prices ($72 million), lower operating costs and improved operating results in
2000 from the Sunbelt joint venture (breakeven in 2000; $13 million loss in
1999) due to the increase in ECU prices offset the fees associated with the
discontinued chlor alkali partnership negotiations with Occidental ($3 million)
and contributed to the significant improvement in operating income.

                                      18



                                    Metals



                                         2001  2000 1999
                                         ----  ---- ----
                                         ($ in millions)
                                           
                        Sales........... $618  $880 $773
                        Operating Income    7    95   77


 2001 Compared to 2000

   Sales decreased 30% due to a significant decline in volumes (30%) associated
with the weak economy and lower metal values (2%) and selling prices (1%),
offset in part by the sales associated with the Monarch acquisition (3%).
Metals' operating results were significantly lower primarily due to the
economic slowdown, which resulted in substantially lower shipment levels. A
weak economy prevailed all year resulting in a significant reduction of strip
shipments to key market segments of our industry. Automotive, coinage,
electrical connectors, telecommunications (markets served by Olin Aegis, our
business that supplies customized and semi-customized metal packaging for
hybrid integrated circuits and thick ceramic substrates for the electronics
market) and distributor (markets served by Oster, a network of metal service
centers), customers had much lower demand for the industry's products. In 2001,
strip shipments to the automotive and the coinage segments were lower than in
2000 by 24% and 41%, respectively. The lack of acceptance by the general public
of the $1 Sacagewea coin accounted for 35% of the decline in strip shipments to
the coinage segment in 2001. Future demand is not expected to reach 2000 levels
because of the current lack of $1 coin requirements established by the United
States Treasury. The decrease in strip shipments to the coinage segment was
also caused by the decrease in demand for the state quarter program as the
economy softened and coinage in general weakened, both of which are consistent
with historical patterns. In addition, 2001 shipments to the
electronics/telecommunications segment as a whole were lower than in 2000 by
53%. Sales from Oster were down 27% in 2001 from the prior year. In addition,
the mill products operations in East Alton, IL took a two-week maintenance
shutdown in 2001, with no similar shutdown in 2000. Also, the strike at our
East Alton facility in the first quarter of 2001 had a moderately adverse
impact on Metals' profits, while the reductions of LIFO inventory quantities in
2001 increased operating income by approximately $4 million pretax.

 2000 Compared to 1999

   Sales in 2000 increased 14% due to increased volumes and higher metal values
and selling prices. Higher volumes and conversion selling prices increased
sales by 9% and higher metal values accounted for 5% of the improvement. Strip
shipments to the coinage, electronics and ammunition segments were higher in
2000. Oster shipments were higher as well as were those to the
telecommunications market served by Olin Aegis. Shipments of strip to the
automotive and building products markets were lower in 2000. Strip shipments to
the coinage segment increased 30% over 1999's level, of which 60% of such
increase was due to the introduction of the $1 Sacagewea coin. The balance of
this increase in strip shipments to the coinage segment was also caused by the
state quarter program which peaked in the fourth quarter of 2000. At the same
time, the economy was expanding, which historically drives coin demand. Higher
volumes, improved pricing and a favorable product mix along with the impact
from on-going cost reduction programs more than offset the impact of the work
stoppage at East Alton and contributed to the improvement in operating income.

                                  Winchester



                                         2001  2000 1999
                                         ----  ---- ----
                                         ($ in millions)
                                           
                        Sales........... $269  $277 $286
                        Operating Income    7    20   21


 2001 Compared to 2000

   Sales in 2001 were slightly lower than 2000 primarily due to lower
international sales. International sales were $8 million below last year's
levels due to decreased foreign military business and unfavorable translation
of Australian sales. Domestic commercial sales were comparable to last year
despite overall lower selling prices and the effects of the

                                      19



strike at our East Alton facility in the first quarter. Our operating income
decreased from $20 million in 2000 to $7 million in 2001. The loss of the Lake
City government contract (approximately $4 million), the impact of both the
lower domestic commercial prices and the higher personnel-related costs as a
result of the new labor agreement at the East Alton facility ($8 million) and
the impact of the strike ($1 million) were the main contributors to this
significant decrease in operating income.

 2000 Compared to 1999

   Sales in 2000 were slightly lower than 1999 primarily due to lower domestic
commercial ammunition volumes (4%), offset in part by higher commercial selling
prices (1%). After strong marketplace demand throughout 1999 and the first half
of 2000, the market began softening in the third quarter due to an
industry-wide market correction. Operating income declined slightly from 1999
due to several factors. The impact of the lower volumes, the work stoppage at
East Alton, higher consulting expenses ($1 million) and lower fees from the
Lake City Army ammunition plant more than offset the favorable impact of both
higher selling prices and Australia's improved results from foreign currency
translation.

   In 1999, Winchester was the operator of the U.S. Army's Lake City
small-caliber, ammunition plant in Independence, MO. The five-year contract
expired at the end of 1999 and represented approximately $5 million in annual
pretax profits during the year. On July 30, 1999, the Department of the Army
awarded this contract to a competitor. Olin filed a protest to this award. We
did not prevail in our protest of the contract award to operate this plant.
Therefore, our contract to operate that facility terminated at the end of the
first quarter of 2000.

2002 OUTLOOK

   In 2002, interest expense will be higher due to our $200 million 9.125%
Senior Notes offering in December 2001, offset in part by the income from the
temporary investment of funds to be used to retire the $100 million 8% notes
maturing in June 2002. Business conditions in many of our downstream markets
generally remain depressed, but there are a few early signs of recovery. Based
on normal seasonal factors affecting Chlor Alkali and Winchester and the
expected modest improvement in the economy, we anticipate an improvement in our
quarterly results as the year progresses. In addition for all three segments
combined, the reduction in the workforce from the early retirement incentive
program and the voluntary separation program is expected to generate a total
fixed cost salary savings of $15 million on an annual basis in future periods.
These fixed cost savings do not include the impact of idling the Indianapolis
facility because we intend to restart the facility once market conditions
improve.

   For the first quarter of 2002, we expect that the continued soft economy
will adversely affect our chlorine and caustic pricing resulting in a further
decrease in our ECU prices from 2001 fourth quarter levels. The recent
improvement in EDC (ethylene dichloride - a precursor for polyvinyl chloride or
PVC, a plastic used in applications, such as vinyl siding, plumbing and
automotive parts) pricing and volumes to the Asian markets may lead to higher
chlorine prices. This has resulted in some tightness in chlorine as production
remains constrained by the low demand for caustic. In Metals, our projection
for the first quarter is that overall demand from our customers will not
improve appreciably. There are some signs of improvement but at this point they
are not definitive enough to raise our forecasts for the quarter. For the first
quarter of 2002, Winchester's sales and operating results will likely decrease
modestly from their fourth quarter 2001 levels due to normal seasonal factors.

DISCONTINUED OPERATIONS



                                           1999
                                      ---------------
                                      ($ in millions)
                                   
                           Sales.....       $73
                           Net Income         4


   On February 8, 1999, we completed the spin-off of our specialty chemicals
businesses as Arch Chemicals. Accordingly, 1999 includes the operating results
of Arch Chemicals for the month of January.

                                      20



ENVIRONMENTAL MATTERS



                                                            2001  2000  1999
                                                            ----  ----  ----
                                                             ($ in millions)
                                                               
  Cash Outlays:
   Remedial and Investigatory Spending (Charged to Reserve) $ 26  $ 30  $ 21
   Capital Spending........................................    3     3     3
   Plant Operations (Charged to Cost of Goods Sold)........   17    17    17
                                                            ----  ----  ----
  Total Cash Outlays....................................... $ 46  $ 50  $ 41
                                                            ====  ====  ====
  Reserve for Environmental Liabilities:
     Beginning Balance..................................... $110  $125  $129
     Charges to Income.....................................   14    15    17
     Business Acquired.....................................    2     -     -
     Remedial and Investigatory Spending...................  (26)  (30)  (21)
                                                            ----  ----  ----
  Ending Balance........................................... $100  $110  $125
                                                            ====  ====  ====


   The establishment and implementation of federal, state and local standards
to regulate air, water and land quality has affected and will continue to
affect substantially all of our manufacturing locations. Federal legislation
providing for regulation of the manufacture, transportation, use and disposal
of hazardous and toxic substances, and remediation of contaminated sites, has
imposed additional regulatory requirements on industry, particularly the
chemicals industry. In addition, implementation of environmental laws, such as
the Resource Conservation and Recovery Act and the Clean Air Act, has required
and will continue to require new capital expenditures and will increase
operating costs. We employ waste minimization and pollution prevention programs
at our manufacturing sites.

   We are party to various governmental and private environmental actions
associated with waste disposal sites and manufacturing facilities. Associated
costs of investigatory and remedial activities are provided for in accordance
with generally accepted accounting principles governing probability and the
ability to reasonably estimate future costs. Charges to income for
investigatory and remedial efforts were material to operating results in 2001,
2000, and 1999 and may be material to net income in future years. Such charges
to income were $14 million, $15 million and $17 million in 2001, 2000, and 1999
respectively.

   Cash outlays for remedial and investigatory activities associated with
former waste sites and past operations were not charged to income but instead
were charged to reserves established for such costs identified and expensed to
income in prior years. Cash outlays for normal plant operations for the
disposal of waste and the operation and maintenance of pollution control
equipment and facilities to ensure compliance with mandated and voluntarily
imposed environmental quality standards were charged to income. Total
environmental-related cash outlays for 2002 are estimated to be $50 million, of
which $27 million is expected to be spent on investigatory and remedial
efforts, $5 million on capital projects and $18 million on normal plant
operations. Historically, we have funded our environmental capital expenditures
through cash flow from operations and expect to do so in the future.

   Our estimated environmental liability at the end of 2001 was attributable to
approximately 60 sites, 18 of which were United States Environmental Protection
Agency ("USEPA") National Priorities List ("NPL") sites. Ten sites accounted
for approximately 73% of the reserve taken for such liabilities and, of the
remaining sites, no one site accounted for more than 2% of our environmental
liability. Two of these ten sites are in the investigatory stage of the
remediation process. In this stage, remedial investigation and feasibility
studies are conducted by us or other potentially responsible parties (PRPs) and
a Record of Decision (ROD) or its equivalent has not been issued. At four of
the ten sites, a ROD or its equivalent has been issued by either the USEPA or
responsible state agency and we either alone, or as a member of a PRP group,
were engaged in performing the remedial measures required by that ROD. At the
remaining four of the ten sites, part of the site is subject to a ROD and
another part is still in the investigative stage of remediation. All ten sites
were either former manufacturing facilities or waste sites containing
contamination generated by those facilities.

                                      21



   Our consolidated balance sheets included liabilities for future
environmental expenditures to investigate and remediate known sites amounting
to $100 million at December 31, 2001, and $110 million at December 31, 2000, of
which $73 million and $85 million were classified as other noncurrent
liabilities, respectively. Those amounts did not take into account any
discounting of future expenditures or any consideration of insurance recoveries
or advances in technology. Those liabilities are reassessed periodically to
determine if environmental circumstances have changed and/or remediation
efforts and our estimate of related costs have changed. As a result of these
reassessments, future charges to income may be made for additional liabilities.

   Annual environmental-related cash outlays for site investigation and
remediation, capital projects, and normal plant operations are expected to
range between approximately $40 million to $50 million over the next several
years, $25 million to $30 million of which is expected to be charged against
reserves recorded on our balance sheet. While we do not anticipate a material
increase in the projected annual level of our environmental-related costs,
there is always the possibility that such increases may occur in the future in
view of the uncertainties associated with environmental exposures.
Environmental exposures are difficult to assess for numerous reasons, including
the identification of new sites, developments at sites resulting from
investigatory studies, advances in technology, changes in environmental laws
and regulations and their application, the scarcity of reliable data pertaining
to identified sites, the difficulty in assessing the involvement and financial
capability of other PRPs and our ability to obtain contributions from other
parties and the lengthy time periods over which site remediation occurs. It is
possible that some of these matters (the outcomes of which are subject to
various uncertainties) may be resolved unfavorably against us, which could have
a material adverse effect on our operating results and financial condition. At
December 31, 2001, we estimate we may have additional contingent environmental
liabilities of $40 million in addition to the amounts for which we have already
taken a reserve.

LIQUIDITY, INVESTMENT ACTIVITY AND OTHER FINANCIAL DATA

Cash Flow Data


Provided By (Used For)                                          2001  2000  1999
- ----------------------                                         -----  ----  ----
                                                                   
                                                                ($ in millions)
Net Cash and Cash Equivalents Provided By Operating Activities
  From Continuing Operations.................................. $  76  $181  $ 42
Net Operating Activities......................................    76   181    23
Capital Expenditures..........................................   (65)  (95)  (73)
Net Investing Activities......................................  (111)  (88)  (74)
Purchases of Olin Common Stock................................   (14)  (20)  (11)
Net Financing Activities......................................   143   (57)   22


   In 2001, income from continuing operations exclusive of non-cash charges,
proceeds from long-term debt borrowings and cash equivalents on hand were used
to finance our working capital requirements, capital and investment projects,
acquisitions, dividends, the purchase of our common stock and debt repayments.

 Operating Activities

   In 2001, the decrease in cash provided by operating activities of continuing
operations was primarily attributable to lower operating results. In 2001,
there was no investment in working capital. Whereas in 2000, our investment in
working capital increased commensurate with the increase in sales and operating
results compared to 1999. In 2001, the reduced accounts receivable and
inventory levels more than offset the impact of the liquidation of higher 2000
year-end accounts payable and accrued liability balances. The accounts
receivable and inventory levels are lower than normal primarily due to the
lower volume of Metals business resulting from the impact of the soft economy
on its markets and the declining prices and volumes in our chlor alkali
business.

   In 2000, the increase in cash flow from operating activities of continuing
operations from 1999 was primarily attributable to higher operating income and
a lower investment in working capital, which included a tax refund. In 2000, we
received approximately $19 million as a result of a tax refund.

                                      22



 Capital Expenditures

   Capital spending in 2001 of $65 million was 32% lower than 2000. The capital
spending decrease was primarily due to completion of projects that were begun
in 2000, primarily to expand production capacity in Metals higher value-added
product categories, in particular high performance alloys. These products are
patented, specialty copper alloys that provide value-added benefits to global
customers in the computer, telecommunications and automotive industries. This
expansion was completed in the second half of 2001 with the majority of the
spending occurring in 2000. Capital spending in 2001 was approximately 76% of
depreciation compared to 120% in 2000.

   Capital spending in 2000 of $95 million was 30% higher than 1999. The
capital spending increase was primarily in the Metals segment to expand
production capacity in its higher value-added product categories, in particular
high performance alloys. Capital spending in 2000 was approximately 120% of
depreciation compared to 95% in 1999.

   In 2002, we plan to manage our capital spending at a level approximating 50%
of depreciation or about $40 million.

 Investing Activities

   In June 2001, we acquired the stock of Monarch for approximately $48
million. Monarch was a privately held, specialty copper alloy manufacturer
headquartered in Waterbury, CT, with revenues of approximately $95 million in
2000. It produces and distributes an array of high performance copper alloys
and other materials used for applications in electronics, telecommunications,
automotive products and building products. We financed the purchase price
through our credit facilities. The purchase price exceeded the fair value of
the identifiable net assets acquired by $19 million.

   During 1999, the Company completed the purchase of Isotronics U.K., Ltd., a
manufacturer of microelectronic packages in England, and Criterion Metals of
Puerto Rico, Inc., a metal distribution company in Puerto Rico for a total of
$3 million.

 Financing Activities

   At December 31, 2001, we had an unsecured revolving credit agreement with a
group of banks with commitments totaling $165 million, all of which was
available at December 31, 2001 and 2000. In addition in 2001, we had a $25
million line of credit with another bank, none of which was used. On January 3,
2002, we entered into a new three-year senior revolving credit facility of $140
million, including a sublimit for letters of credit. The new facility replaces
our existing credit facilities and will expire on January 3, 2005. We may
select various floating rate borrowing options. The senior credit facility
includes various customary restrictive covenants, including restrictions
related to the ratio of debt to earnings before interest expense, taxes,
depreciation and amortization ("leverage ratio") and the ratio of earnings
before interest expense, taxes, depreciation and amortization to interest
expense ("coverage ratio"). In the event that the leverage ratio equals or
exceeds 3.75, we are required under this senior credit facility to grant a
security interest in all of our U.S. inventory and accounts receivables. No
assets of our subsidiaries will secure our obligation under our senior credit
facility.

   In December 2001, we sold $200 million of 9.125% Senior Notes with a
maturity date of December 15, 2011. We used a portion of the net proceeds of
the offering to repay our short-term indebtedness and plan to use $100 million
to repay the 8% notes due in June 2002. Any remaining proceeds will be
available for general corporate purposes.

   Prior to the spin-off of Arch Chemicals in February 1999, we borrowed $75
million under a credit facility which liability was assumed by Arch Chemicals.
We used these funds for general corporate purposes, which included share
repurchases.

   During 2001, 2000 and 1999, we used $14 million, $20 million and $11 million
to repurchase 0.7 million, 1.2 million and 0.9 million shares of our stock,
respectively. In 1996, we sold our toluene diisocyanate and aliphatic
diisocyanate businesses to ARCO Chemical Company for a sale price of $565
million. Our board of directors decided to use a portion of the proceeds for
the repurchase of shares of the Corporation's common stock in order to enhance

                                      23



shareholder value. On October 9, 1996 and April 30, 1998, our board of
directors approved two share repurchase programs to repurchase a total of 10
million shares of our outstanding common stock, of which approximately 298,000
shares remain to be repurchased as of December 31, 2001.

   The percent of total debt to total capitalization increased to 61% at
December 31, 2001, from 41% at year-end 2000 and was 43% at year-end 1999. The
increase in 2001 from year-end 2000 was due to the issuance of our 9.125%
Senior Notes and lower shareholders' equity at December 31, 2001.

   Dividends per common share were $0.80 in 2001 and 2000 and $0.90 in 1999.
Total dividends paid on common stock amounted to $35 million in 2001, $36
million in 2000 and $41 million in 1999. In 2001 and 2000, we paid a quarterly
dividend of $0.20 per share. Prior to the spin-off of Arch Chemicals, we paid a
first quarter 1999 dividend of $0.30 per share. Following the distribution of
Arch Chemicals, the quarterly dividend was reduced to $0.20 per share to
reflect the effect of the distribution.

   The payment of cash dividends is subject to the discretion of our board of
directors and will be determined in light of then-current conditions, including
our earnings, our operations, our financial condition, our capital requirements
and other factors deemed relevant by our board of directors. In the future, our
board of directors may change our dividend policy, including the frequency or
amount of any dividend, in light of then-existing conditions.

LIQUIDITY AND OTHER FINANCING ARRANGEMENTS

   Our principal sources of liquidity are from cash and cash equivalents,
short-term investments, cash flow from operations, short-term borrowings under
a senior revolving credit facility and other financing arrangements. We also
have access to the debt and equity markets.

   Cash flow from operations is subject to change as a result of the cyclical
nature of our operating results, which have been affected recently by economic
cycles and resulting downturn in many of the industries served by us, such as
automotive, electronics and the telecommunications markets. In addition, cash
flow from operations is affected by considerable changes in ECU prices caused
by the changes in the supply/demand balance, resulting in the chlor alkali
business having tremendous leverage on our earnings. A $10 per ECU price change
equates to an $11 million pretax profit change when operating at full capacity.

   Our current debt structure is used to fund our business operations and
commitments from banks under our revolving credit facility are a source of
liquidity. As of December 31, 2001, we had long-term borrowings of $431 million
of which $86 million was at variable rates. We have interest rate swaps to
hedge underlying debt obligations. Annual maturities of long-term debt are $102
million in 2002; $2 million in 2003; $27 million in 2004; $63 million in 2005,
$1 million in 2006 and $236 million thereafter. We plan to use a portion of net
proceeds from the offering of our $200 million 9.125% Senior Notes to repay the
$100 million 8% notes due in June 2002.

   We use operating leases for certain properties, such as railroad cars,
distribution, warehousing and office space, data processing and office
equipment. Leases covering these properties generally contain escalation
clauses based on increased costs of the lessor, primarily property taxes,
maintenance and insurance and have renewal or purchase options. Future minimum
rent payments under operating leases having initial or remaining non-cancelable
lease terms in excess of one year at December 31, 2001 are as follows: $21
million in 2002; $20 million in 2003; $18 million in 2004; $16 million in 2005;
$15 million in 2006 and a total of $61 million thereafter. Assets under capital
leases are not significant.

   On December 31, 1997, we entered into a long-term, sulfur dioxide supply
agreement with Alliance Specialty Chemicals, Inc. ("Alliance"), formerly known
as RFC SO2, Inc. Alliance has the obligation to deliver annually 36,000 tons of
sulfur dioxide. Alliance owns the sulfur dioxide plant, which is located at our
Charleston, TN facility and is operated by us. The price for the sulfur dioxide
is fixed over the life of the contract, and, under the terms of the contract,
we are obligated to make a monthly payment of approximately $200 thousand
regardless of the amount of sulfur dioxide purchased. Commitments related to
this agreement are approximately $2 million per year for each year of 2002
through 2006 and a total of $12 million thereafter.

                                      24



   We utilize a credit facility, standby letters of credit and guarantees. In
January 2002, we entered into a new senior revolving credit facility with a
group of banks. This credit facility is described above under the caption,
"Financing Activities". As of March 1, 2002, we did not have any outstanding
borrowings under this credit facility.

   At December 31, 2001, we had outstanding standby letters of credit of $49
million. These letters of credit were used to support certain long-term debt
obligations.

   We and our partner, PolyOne Corporation ("PolyOne") own equally the Sunbelt
Chlor Alkali Partnership ("Sunbelt joint venture"). The partnership owns assets
with productive capability to manufacture 275 thousand tons of caustic soda and
250 thousand tons of chlorine on an annual basis. We market all of the caustic
soda production for the venture, while all of the chlorine production is
required to be purchased by Oxy Vinyls (a joint venture between OxyChem and
PolyOne) based on a formula tied to the market price of chlorine. The
construction of this plant and equipment was financed by the issuance of $195
million of Guaranteed Secured Senior Notes due 2017. The Sunbelt joint venture
sold $97.5 million of Guaranteed Secured Senior Notes due 2017, Series O, and
$97.5 million of Guaranteed Secured Senior Notes due 2017, Series G. We refer
to these notes as the Sunbelt Notes. The Sunbelt Notes bear interest at a rate
of 7.23% per annum payable semiannually in arrears on each June 22 and December
22.

   We have guaranteed Series O of the Sunbelt Notes, and PolyOne has guaranteed
Series G of the Sunbelt Notes, in both cases pursuant to customary guaranty
agreements. Our guarantee and PolyOne's guarantee are separate, rather than
joint. In other words, we are not required to make any payments to satisfy the
indebtedness of PolyOne. An insolvency or bankruptcy of PolyOne will not
automatically trigger acceleration of the Sunbelt Notes or cause us to be
required to make payments under our guarantee, even if PolyOne is required to
make payments under its guarantee. However, if the Sunbelt joint venture does
not make timely payments on the Sunbelt Notes, whether as a result of a failure
to pay on a guarantee or otherwise, the holders of the Sunbelt Notes may
proceed against the assets of the Sunbelt joint venture for repayment.

   Beginning on December 22, 2002 and each year thereafter, our Sunbelt joint
venture is required to repay approximately $12 million of the Sunbelt Notes, of
which approximately $6 million is attributable to Series O of the Sunbelt
Notes. In the event our Sunbelt joint venture cannot make any of these
payments, we would be required to fund our half of such payment. In certain
other circumstances, we may also be required to repay the Sunbelt Notes prior
to their maturity. We and PolyOne have agreed that, if we or PolyOne intend to
transfer our respective interests in the Sunbelt joint venture and the
transferring party is unable to obtain consent from holders of 80% of the
aggregate principal amount of the indebtedness related to the guarantee being
transferred after good faith negotiations, then we and PolyOne will be required
to repay our respective portions of the Sunbelt Notes. In such event, any make
whole or similar penalties or costs will be paid by the transferring party.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

   Our discussion and analysis of our financial condition and results of
operations are based upon our consolidated financial statements, which have
been prepared in accordance with accounting principles generally accepted in
the United States. The preparation of these financial statements requires us to
make estimates and judgments that affect the reported amounts of assets,
liabilities, sales and expenses, and related disclosure of contingent assets
and liabilities. Significant estimates in our consolidated financial statements
include environmental, restructuring and other unusual items, litigation,
income tax reserves including deferred tax asset valuation allowance, pension,
postretirement and other benefits and allowance for doubtful accounts. We base
our estimates on prior experience, facts and circumstances and other
assumptions that we believe to be reasonable. Actual results may differ from
these estimates.

   We believe the determination of our environmental cost accruals is a
critical accounting policy. Accruals for environmental matters are recorded
when it is probable that a liability has been incurred and the amount of the
liability can be reasonably estimated, based upon current law and existing
technologies. These amounts, which are not discounted and are exclusive of
claims against third parties, are adjusted periodically as assessments and
remediation efforts progress or additional technical or legal information
becomes available.

   Environmental exposures are difficult to assess for numerous reasons,
including the identification of new sites, developments at sites resulting from
investigatory studies, advances in technology, changes in environmental laws and

                                      25



regulations and their application, the scarcity of reliable data pertaining to
identified sites, the difficulty in assessing the involvement and financial
capability of other potentially responsible parties and our ability to obtain
contributions from other parties and the lengthy time periods over which site
remediation occurs. It is possible that some of these matters (the outcomes of
which are subject to various uncertainties) may be resolved unfavorably against
us, which could have a material adverse effect on our operating results and
financial condition.

NEW ACCOUNTING STANDARDS

   As of January 1, 2001, we adopted Statement of Financial Accounting
Standards, ("SFAS"), No. 133, "Accounting for Derivative Instruments and
Hedging Activities," as amended by SFAS No. 137 and No. 138. See our
description of Derivative Financial Instruments below for additional
information.

   During the third quarter of 2001, the Financial Accounting Standards Board,
("FASB"), issued SFAS No. 141, "Business Combinations," and SFAS No. 142,
"Goodwill and Other Intangible Assets." SFAS No. 141 requires that the purchase
method of accounting be used for all business combinations initiated after June
30, 2001. SFAS No. 141 also specifies criteria that intangible assets acquired
in a purchase method business combination must meet to be recognized and
reported apart from goodwill. SFAS No. 142 requires that goodwill and
intangible assets with indefinite useful lives no longer be amortized, but
instead tested for impairment at least annually in accordance with the
provisions of this statement. Goodwill amortization for the year ended December
31, 2001 was approximately $2 million. SFAS No. 142 also requires that
intangible assets with estimable useful lives be amortized over their
respective estimated useful lives to their estimated residual values, and
reviewed for impairment in accordance with SFAS No. 121, "Accounting for the
Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed Of."
The adoption of these statements will increase pretax income by approximately
$2 million, resulting from the elimination of goodwill amortization and will
not have a material impact on our financial statements.

   The FASB issued SFAS No. 143, "Accounting for Asset Retirement Obligations."
SFAS No. 143 requires that the fair value of a liability for an asset
retirement be recognized in the period in which it is incurred if a reasonable
estimate of fair value can be made. The associated asset retirement costs are
capitalized as part of the carrying amount of the long-lived asset. This
statement is effective for fiscal years beginning after June 30, 2002. At this
time, it is not practical to reasonably estimate the impact of adopting this
statement on our financial statements.

   The FASB issued SFAS No. 144, "Accounting for Impairment or Disposal of
Long-Lived Assets." SFAS No. 144 addresses the financial accounting and
reporting for the impairment or disposal of long-lived assets. This statement
requires that one accounting model be used for long-lived assets to be disposed
of by sale whether previously held and used or newly acquired.

   In addition, it broadened the presentation of discontinued operations to
include more disposal transactions. This statement is effective for fiscal
years beginning after December 15, 2001, and interim periods within those
fiscal years. At this time, we believe that the adoption of this statement will
not have a material impact on our financial statements.

DERIVATIVE FINANCIAL INSTRUMENTS

   In 1998, the FASB issued Statement No. 133 "Accounting for Derivative
Instruments and Hedging Activities." It requires an entity to recognize all
derivatives as either assets or liabilities in the statement of financial
position and measure those instruments at fair value. The implementation date
of this statement is effective for all fiscal quarters of fiscal years
beginning after June 15, 2000. We adopted FASB No. 133 on January 1, 2001, and
will achieve hedge accounting treatment for substantially all of our business
transactions whose risks are covered using derivative instruments. SFAS No. 133
requires that all derivative instruments be recorded on the balance sheet at
their fair value. The accounting treatment of changes in fair value is
dependent upon whether or not a derivative instrument is designated as a hedge
and, if so, the type of hedge. For derivatives designated as a fair value
hedge, the changes in the fair value of both the derivative and the hedged item
are recognized in earnings. For derivatives designated as a cash flow hedge,
the change in fair value of the derivative is recognized in other comprehensive
income until the hedged item is recognized in earnings. Ineffective portions
are recognized currently in earnings. Unrealized gains and losses on
derivatives not qualifying for hedge accounting are recognized currently in
earnings. Upon adoption of this

                                      26



statement, we recorded on January 1, 2001, assets totaling $1.2 million and
liabilities totaling $2.1 million with an offsetting entry to Accumulated Other
Comprehensive Income (Loss). The new standard does not allow for the hedge
accounting treatment on the portion of any hedge that is not effective. The
ineffectiveness, which was recorded at January 1, 2001, was a loss of less than
$0.1 million.

   Previously, we accounted for forward contracts to buy and sell foreign
currencies under SFAS No. 52, "Foreign Currency Translation" and futures
contracts to reduce the impact of metal price fluctuations under SFAS No. 80,
"Accounting for Futures Contracts." At December 31, 2001, we had no forward
contracts to buy or sell foreign currencies. At December 31, 2000, we had
forward contracts to sell foreign currencies with a face value of $4 million
(which approximates carrying value) and no forward contracts to buy foreign
currencies. Foreign currency exchange gains (losses), net of taxes, were less
than $(1) million in 2001, less than $1 million in 2000 and less than $(1)
million in 1999. At December 31, 2001, we had open positions in futures
contracts totaling $47 million (2000 - $27 million). If the futures contracts
had been settled on December 31, 2001, we would have recognized a loss of $1
million. Gains (losses) on futures contracts, net of taxes, were $(6) million
in 2001, less than $1 million in 2000 and $1 million in 1999.

   We use cash flow hedges of commodities such as copper, zinc, nickel and lead
to provide a measure of stability in managing our exposure to price
fluctuations. We also use fair value hedges of interest rate swaps as a means
of hedging changes in interest rates on our outstanding debt obligations.

   At December 31, 2001, Accumulated Other Comprehensive Income (Loss) included
a pretax decline in fair value of $3 million. In addition, the unfavorable
ineffective portion of changes in fair value resulted in a $1 million charge to
earnings for the year ended December 31, 2001. Offsetting the above, there were
assets totaling $1 million and liabilities of $5 million.

   Our foreign currency contracts and certain commodity derivatives did not
meet the criteria of SFAS No. 133 to qualify for hedge accounting. The
cumulative effect of items not qualifying for hedge accounting for 2001 was not
material to earnings.

RISK MANAGEMENT

   We periodically evaluate risk retention and insurance levels for product
liability, property damage and other potential areas of risk. Based on the cost
and availability of insurance and the likelihood of a loss occurring, our
management decides the amount of insurance coverage to purchase from
unaffiliated companies and the appropriate amount of risk to retain. The
current levels of risk retention are believed to be appropriate and are
consistent with those of other companies in the various industries in which we
operate.

Item 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

   We are exposed to market risk in the normal course of our business
operations due to our operations in different foreign currencies, our purchases
of certain commodities, and our ongoing investing and financing activities. The
risk of loss can be assessed from the perspective of adverse changes in fair
values, cash flows and future earnings. We have established policies and
procedures governing our management of market risks and the use of financial
instruments to manage exposure to such risks.

   Certain raw materials, namely copper, lead, and zinc used primarily in our
Metals and Winchester segments products are subject to price volatility.
Depending on market conditions, we may enter into futures contracts and put and
call option contracts in order to reduce the impact of metal price
fluctuations. As of December 31, 2001, we maintained open positions on futures
contracts totaling $47 million ($27 million at December 31, 2000). Assuming a
hypothetical 10% increase in commodity prices, which are currently hedged, we
would experience a $4.7 million ($2.7 million at December 31, 2000) increase in
our cost of inventory purchased, which would be offset by a corresponding
increase in the value of related hedging instruments.

                                      27



   We are exposed to changes in interest rates primarily as a result of our
investing and financing activities. Investing activity is not material to our
consolidated financial position, results of operations, or cash flow. Our
current debt structure is used to fund business operations and commitments from
banks under our revolving credit facility are a source of liquidity. As of
December 31, 2001, we had long-term borrowings of $431 million ($229 million at
December 31, 2000) of which $86 million ($35 million at December 31, 2000) are
at variable rates. We have interest rate swaps to hedge underlying debt
obligations. In all cases the underlying index for the variable rates is six
month London InterBank Offered Rate (LIBOR). Accordingly, payments are settled
every six months and the initial term of the swap is the same as the underlying
debt instrument. We swapped interest payments on $50 million principal amount
of our 9.125% Senior Notes to a floating rate (5.55125% at December 31, 2001).
In February 2002, we swapped interest payments on $30 million principal amount
of our 9.125% Senior Notes to an estimated floating rate of 5.68%. During 1992,
we swapped interest payments on $50 million principal amount of our 8% notes
due 2002, to a floating rate (1.91375% at December 31, 2001; 6.46406% at
December 31, 2000). In June 1995, we offset this transaction by swapping
interest payments to a fixed rate of 6.485%. These interest rate swaps reduced
interest expense, resulting in an increase in pretax income of $1 million in
each of 2001 and 2000.

   In December 2001 we increased our fixed-rate debt by issuing $200 million of
Senior Notes in an environment wherein long-term interest rates were
significantly higher than short-term interest rates. In order to manage
interest expense and floating interest rate exposure to optimal levels, we
entered into additional floating rate contracts.

   If the actual change in interest or commodities pricing is substantially
different than expected, the net impact of interest rate risk or commodity risk
on our cash flow may be materially different than that disclosed above.

   We do not enter into any derivative financial instruments for speculative
purposes.

CAUTIONARY STATEMENT ABOUT FORWARD-LOOKING STATEMENTS:

   This report includes forward-looking statements within the meaning of the
Private Securities Litigation Reform Act of 1995. These statements relate to
analyses and other information that are based on management's beliefs, certain
assumptions made by management, forecasts of future results, and current
expectations, estimates and projections about the markets and economy in which
we and our various segments operate. The statements contained in this report
that are not statements of historical fact may include forward-looking
statements that involve a number of risks and uncertainties.

   We have used the words "anticipate," "intend," "may," "expect," "believe,"
"should," "plan," "will," "estimate," and variations of such words and similar
expressions in this report to identify such forward-looking statements. These
statements are not guarantees of future performance and involve certain risks,
uncertainties and assumptions, which are difficult to predict and many of which
are beyond our control. Therefore, actual outcomes and results may differ
materially from those matters expressed or implied in such forward-looking
statements. We undertake no obligation to update publicly any forward-looking
statements, whether as a result of future events, new information or otherwise.

   The risks, uncertainties and assumptions involved in our forward-looking
statements include those discussed under the caption "Additional Factors That
May Affect Future Results." You should consider all of our forward-looking
statements in light of these factors. In addition, other risks and
uncertainties not presently known to us or that we currently consider
immaterial could affect the accuracy of our forward-looking statements.

                                      28



Item 8.   CONSOLIDATED FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

                   MANAGEMENT REPORT ON FINANCIAL STATEMENTS

   Management is responsible for the preparation and integrity of the
accompanying consolidated financial statements. These financial statements have
been prepared in conformity with generally accepted accounting principles and,
where necessary, involve amounts based on management's best judgments and
estimates. Management also prepared the other information in this annual report
and is responsible for its accuracy and consistency with the financial
statements.

   The Company's system of internal controls is designed to provide reasonable
assurance as to the integrity and reliability of the financial statements, the
protection of assets from unauthorized use or disposition, and the prevention
and detection of fraudulent financial reporting. This system, which is reviewed
regularly, consists of written policies and procedures, an organizational
structure providing delegation of authority and segregation of responsibility
and is monitored by an internal audit department. The Company's independent
auditors also review and test the internal control system along with tests of
accounting procedures and records to the extent that they consider necessary in
order to issue their opinion on the financial statements. Management believes
that the system of internal accounting controls meets the objectives noted
above.

   Management also recognizes its responsibility for fostering a strong ethical
climate so that the Company's affairs are conducted according to the highest
standards of personal and corporate conduct. These expectations are summarized
in a document entitled "Our Values and Standards of Business Conduct" which is
distributed to every employee. The standards, which are also periodically
reinforced through personal training sessions, address among other things, the
necessity of ensuring open communication within the Company; potential
conflicts of interest; compliance with all domestic and foreign laws, including
those relating to financial disclosure; and the confidentiality of proprietary
information. In addition, the Company maintains a systematic program to assess
compliance with these standards and has established various outlets, including
a confidential telephone help-line (1-800-362-8348), for employees and
suppliers to ask questions and share concerns.

   The Audit Committee of the Board of Directors, composed solely of outside
directors, meets periodically with the independent auditors, management and the
Company's internal auditors to review the work of each and to evaluate
accounting, auditing, internal controls and financial reporting matters. The
Audit Committee annually recommends to the Board of Directors the appointment
of independent auditors, subject to shareholder approval. The independent
auditors and the Company's internal audit department have independent and free
access to the Audit Committee.



         [GRAPHIC]


  Donald W. Griffin Signature                      /s/ Joseph D Rupp
Donald W. Griffin                                  Joseph D. Rupp
Chairman                                           President and Chief
                                                   Executive Officer

/s/ Anthony W. Ruggiero
Anthony W. Ruggiero
Executive Vice President and
Chief Financial Officer


                                      29



                         INDEPENDENT AUDITORS' REPORT

To the Board of Directors and Shareholders of Olin Corporation:

   We have audited the accompanying consolidated balance sheets of Olin
Corporation and subsidiaries as of December 31, 2001 and 2000 and the related
consolidated statements of income, shareholders' equity and cash flows for each
of the years in the three-year period ended December 31, 2001. These
consolidated financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these consolidated
financial statements based on our audits.

   We conducted our audits in accordance with auditing standards generally
accepted in the United States of America. Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the
consolidated financial statements are free of material misstatement. An audit
includes examining, on a test basis, evidence supporting the amounts and
disclosures in the consolidated 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 consolidated financial statements referred to above,
present fairly, in all material respects, the financial position of Olin
Corporation and subsidiaries as of December 31, 2001 and 2000, and the results
of their operations and their cash flows for each of the years in the
three-year period ended December 31, 2001 in conformity with accounting
principles generally accepted in the United States of America.

/s/ KPMG LLP
Stamford, Connecticut
January 31, 2002

                                      30



                          CONSOLIDATED BALANCE SHEETS
                                  December 31
                    ($ in millions, except per share data)



                                                                                 2001    2000
                                                                                ------  ------
                                                                                  
                                Assets
Current Assets:
   Cash and Cash Equivalents................................................... $  165  $   57
   Short-Term Investments......................................................     37      25
   Receivables, Net:...........................................................
       Trade...................................................................    129     181
       Other...................................................................     11      16
   Inventories, Net............................................................    223     216
   Income Taxes Receivable.....................................................      7      --
   Other Current Assets........................................................     44      33
                                                                                ------  ------
       Total Current Assets....................................................    616     528
Property, Plant and Equipment, Net.............................................    477     483
Other Assets...................................................................    126     112
                                                                                ------  ------
Total Assets................................................................... $1,219  $1,123
                                                                                ======  ======

                 Liabilities and Shareholders' Equity
Current Liabilities:
   Current Installments of Long-Term Debt...................................... $  102  $    1
   Accounts Payable............................................................     97     124
   Income Taxes Payable........................................................     --       2
   Accrued Liabilities.........................................................    136     148
                                                                                ------  ------
       Total Current Liabilities...............................................    335     275
Long-Term Debt.................................................................    329     228
Deferred Income Taxes..........................................................     72      80
Other Liabilities..............................................................    212     211
                                                                                ------  ------
     Total Liabilities.........................................................    948     794
                                                                                ------  ------
Commitments and Contingencies..................................................
Shareholders' Equity:..........................................................
   Common Stock, Par Value $1 Per Share:
       Authorized, 120,000,000 Shares
         Issued and Outstanding 43,440,223 Shares (43,980,441 in 2000).........     43      44
   Additional Paid-In Capital..................................................    205     216
   Accumulated Other Comprehensive Loss........................................    (18)    (16)
   Retained Earnings...........................................................     41      85
                                                                                ------  ------
       Total Shareholders' Equity..............................................    271     329
                                                                                ------  ------
Total Liabilities and Shareholders' Equity..................................... $1,219  $1,123
                                                                                ======  ======


The accompanying Notes to Consolidated Financial Statements are an integral
part of the consolidated financial statements.

                                      31



                       CONSOLIDATED STATEMENTS OF INCOME
                            Years ended December 31
                    ($ in millions, except per share data)



                                                         2001    2000   1999
                                                        ------  ------ ------
                                                              
  Sales................................................ $1,271  $1,549 $1,395
  Operating Expenses:
     Cost of Goods Sold................................  1,122   1,277  1,215
     Selling and Administration........................    116     127    122
     Research and Development..........................      5       5      7
     Restructuring Charge..............................     39      --     --
  Earnings (Loss) of Non-consolidated Affiliates.......     (8)      2    (11)
  Interest Expense.....................................     17      16     16
  Interest Income......................................      1       2      2
  Other Income.........................................     22       3      1
                                                        ------  ------ ------
  Income (Loss) from Continuing Operations Before Taxes    (13)    131     27
  Income Tax Provision (Benefit).......................     (4)     50     10
                                                        ------  ------ ------
  Income (Loss) from Continuing Operations.............     (9)     81     17
  Income from Discontinued Operations, Net of Taxes....     --      --      4
                                                        ------  ------ ------
  Net Income (Loss).................................... $   (9) $   81 $   21
                                                        ======  ====== ======
  Net Income (Loss) Per Common Share:
  Basic:
     Continuing Operations............................. $(0.22) $ 1.80 $ 0.36
     Discontinued Operations...........................     --      --   0.09
                                                        ------  ------ ------
         Total Net Income (Loss)....................... $(0.22) $ 1.80 $ 0.45
                                                        ======  ====== ======
  Diluted:.............................................
     Continuing Operations............................. $(0.22) $ 1.80 $ 0.36
     Discontinued Operations...........................     --      --   0.09
                                                        ------  ------ ------
         Total Net Income (Loss)....................... $(0.22) $ 1.80 $ 0.45
                                                        ======  ====== ======


The accompanying Notes to Consolidated Financial Statements are an integral
part of the consolidated financial statements.

                                      32



                CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
                    ($ in millions, except per share data)



                                           Common Stock                Accumulated
                                         ----------------  Additional     Other                  Total
                                           Shares     Par   Paid-In   Comprehensive Retained Shareholders'
                                           Issued    Value  Capital   Income (Loss) Earnings    Equity
                                         ----------  ----- ---------- ------------- -------- -------------
                                                                           
Balance at January 1, 1999.............. 45,922,864   $46     $243        $(25)      $ 526       $ 790
Comprehensive Income:
   Net Income...........................         --    --       --          --          21          21
   Translation Adjustment...............         --    --       --           2          --           2
   Comprehensive Income.................         --    --       --          --          --          23
Dividends Paid:
   Common Stock ($0.90 per share).......         --    --       --          --         (41)        (41)
Spin-off of Arch Chemicals, Inc.........         --    --       --          13        (466)       (453)
Stock Repurchase........................   (921,400)   (1)     (10)         --          --         (11)
Other Transactions......................     60,432    --        1          --          --           1
                                         ----------   ---     ----        ----       -----       -----

Balance at December 31, 1999............ 45,061,896    45      234         (10)         40         309
Comprehensive Income:
   Net Income...........................         --    --       --          --          81          81
   Translation Adjustment...............         --    --       --          (3)         --          (3)
   Minimum Pension Liability Adjustment.         --    --       --          (3)         --          (3)
   Comprehensive Income.................         --    --       --          --          --          75
Dividends Paid:
   Common Stock ($0.80 per share).......         --    --       --          --         (36)        (36)
Stock Options Exercised.................     67,111    --        1          --          --           1
Stock Repurchase........................ (1,162,297)   (1)     (19)         --          --         (20)
Other Transactions......................     13,731    --       --          --          --          --
                                         ----------   ---     ----        ----       -----       -----

Balance at December 31, 2000............ 43,980,441    44      216         (16)         85         329
Comprehensive Income:
   Net Loss.............................         --    --       --          --          (9)         (9)
   Translation Adjustment...............         --    --       --          (1)         --          (1)
   Net Unrealized Losses................         --    --       --          (1)         --          (1)
   Comprehensive Loss...................         --    --       --          --          --         (11)
Dividends Paid:.........................
   Common Stock ($0.80 per share).......         --    --       --          --         (35)        (35)
Stock Options Exercised.................    161,093    --        2          --          --           2
Stock Repurchase........................   (694,870)   (1)     (13)         --          --         (14)
Other Transactions......................     (6,441)   --       --          --          --          --
                                         ----------   ---     ----        ----       -----       -----

Balance at December 31, 2001............ 43,440,223   $43     $205        $(18)      $  41       $ 271
                                         ==========   ===     ====        ====       =====       =====


The accompanying Notes to Consolidated Financial Statements are an integral
part of the consolidated financial statements.

                                      33



                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                            Years ended December 31
                                ($ in millions)



                                                                                                    2001  2000  1999
                                                                                                   -----  ----  ----
                                                                                                       
Operating Activities
Income (Loss) from Continuing Operations.......................................................... $  (9) $ 81  $ 17
Adjustments to Reconcile Income (Loss) from Continuing Operations to Net Cash and Cash Equivalents
  Provided by Operating Activities:
   Loss (Earnings) of Non-consolidated Affiliates.................................................     8    (2)   11
   Depreciation...................................................................................    85    79    78
   Amortization of Intangibles....................................................................     2     2     2
   Deferred Taxes.................................................................................    (9)   17    11
   Pension Assets.................................................................................    (4)  (30)  (15)
   Other Income-Demutualization...................................................................   (11)   --    --
   Change in Assets and Liabilities Net of Purchases and Sales of Businesses:
       Receivables................................................................................    69    --    (4)
       Inventories................................................................................    15    (8)   (7)
       Other Current Assets.......................................................................    (3)    1    (1)
       Accounts Payable and Accrued Liabilities...................................................   (54)   25   (34)
       Income Taxes Payable.......................................................................    (8)   30    (1)
       Other Noncurrent Liabilities...............................................................    (2)  (14)  (21)
       Other Assets...............................................................................    (2)   (1)    6
Other Operating Activities........................................................................    (1)    1    --
                                                                                                   -----  ----  ----
Net Cash and Cash Equivalents Provided by Operating Activities from Continuing Operations.........    76   181    42
Discontinued Operations:
 Net Income.......................................................................................    --    --     4
 Change in Net Assets.............................................................................    --    --   (23)
                                                                                                   -----  ----  ----
       Net Operating Activities...................................................................    76   181    23
                                                                                                   -----  ----  ----
Investing Activities
Capital Expenditures..............................................................................   (65)  (95)  (73)
Businesses Acquired in Purchase Transactions......................................................   (48)   --    (3)
Purchases of Short-Term Investments...............................................................    --    --   (34)
Proceeds from Sale of Short-Term Investments......................................................    --    --    34
Investments and Advances--Affiliated Companies at Equity..........................................    --    10    (3)
Other Investing Activities........................................................................     2    (3)    5
                                                                                                   -----  ----  ----
       Net Investing Activities...................................................................  (111)  (88)  (74)
                                                                                                   -----  ----  ----
Financing Activities
Long-Term Debt:
 Borrowings.......................................................................................   200    --    --
 Repayments.......................................................................................    (8)   (1)   (1)
Short-Term Debt Repayments........................................................................    (2)   --    --
Borrowings under Line of Credit Assumed by Arch Chemicals, Inc....................................    --    --    75
Purchase of Olin Common Stock.....................................................................   (14)  (20)  (11)
Stock Options Exercised...........................................................................     2     1    --
Dividends Paid....................................................................................   (35)  (36)  (41)
Other Financing Activities........................................................................    --    (1)   --
                                                                                                   -----  ----  ----
       Net Financing Activities...................................................................   143   (57)   22
                                                                                                   -----  ----  ----
       Net Increase (Decrease) in Cash and Cash Equivalents.......................................   108    36   (29)
Cash and Cash Equivalents, Beginning of Year......................................................    57    21    50
                                                                                                   -----  ----  ----
       Cash and Cash Equivalents, End of Year..................................................... $ 165  $ 57  $ 21
                                                                                                   =====  ====  ====
Cash Paid (Received) for Interest and Income Taxes:
       Interest................................................................................... $  18  $ 16  $ 16
       Income Taxes, Net of Refunds............................................................... $  11  $  2  $ (6)
                                                                                                   =====  ====  ====


The accompanying Notes to Consolidated Financial Statements are an integral
part of the consolidated financial statements.

                                      34



                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                      ($ in millions, except share data)

ACCOUNTING POLICIES

   The preparation of the consolidated financial statements requires estimates
and assumptions that affect amounts reported and disclosed in the financial
statements and related notes. Actual results could differ from those estimates.

  Basis of Presentation

   The consolidated financial statements include the accounts of Olin
Corporation and all majority-owned subsidiaries. Investments in 20-50% owned
affiliates are accounted for on the equity method. Accordingly, we include only
our share of earnings or losses of these affiliates in consolidated net income.

  Revenue Recognition

   Revenues are recognized on sales of product at the time the goods are
shipped and the risks of ownership have passed to the customer. Shipping and
handling fees billed to customers are included in Sales and the costs incurred
for shipping and handling are included in Cost of Goods Sold. A portion of the
sales in the Metals segment are made on a "tolling" basis where the customer
consigns non-ferrous metals to us and is only charged a fee for processing the
non-ferrous metals into finished product. For tolling sales, the metal value is
not included in Sales or Cost of Goods Sold.

  Foreign Currency Translation

   Foreign affiliates' balance sheet amounts are translated at the exchange
rates in effect at year-end, and income statement amounts are translated at the
average rates of exchange prevailing during the year. Translation adjustments
are included in Accumulated Other Comprehensive Income (Loss). Where foreign
affiliates operate in highly inflationary economies, non-monetary amounts are
translated at historical exchange rates while monetary assets and liabilities
are translated at the current rate with the related adjustments reflected in
the Consolidated Statements of Income.

  Cash and Cash Equivalents

   All highly liquid investments, with a maturity of three months or less at
the date of purchase, are considered to be cash equivalents.

  Short-Term Investments

   Marketable securities are accounted for in accordance with Statement of
Financial Accounting Standards ("SFAS") No. 115, "Accounting for Certain
Investments in Debt and Equity Securities." We have classified our marketable
equity securities as available-for-sale which are reported at fair market value
with unrealized gains and losses included in Shareholders' Equity net of
applicable taxes. The fair value of marketable securities is determined by
quoted market prices. Unrealized gains in 2001 were $1; unrealized gains and
losses in 2000 were insignificant. Realized gains and losses on sales of
investments, as determined on the specific identification method and declines
in value of securities judged to be other-than-temporary are included in Other
Income in the Consolidated Statements of Income. Interest and dividends on all
securities are included in Interest Income and Other Income, respectively.

   All investments which have maturities between three and twelve months at
purchase, are considered short-term investments and consist of debt securities
such as commercial paper, time deposits, certificates of deposit, bankers
acceptances, repurchase agreements, and marketable direct obligations of the
United States Treasury and its agencies.

  Inventories

   Inventories are valued principally by the dollar value last-in, first-out
(LIFO) method of inventory accounting; such valuations are not in excess of
market. Cost for other inventories has been determined principally by the
average-cost and first-in, first-out (FIFO) methods. Elements of costs in
inventories include raw materials, direct labor and manufacturing overhead.

                                      35



  Property, Plant and Equipment

   Property, plant and equipment are recorded at cost. Depreciation is computed
on a straight-line basis over the estimated useful lives of the related assets.
Leasehold improvements are amortized over the term of the lease or the
estimated useful life of the improvement, whichever is shorter. Start-up costs
are expensed as incurred. Our policy with respect to our assessment of the
potential impairment of long-lived assets is included in the Goodwill section
below.

  Comprehensive Income

   We calculated comprehensive income in accordance with SFAS No. 130,
"Reporting Comprehensive Income." Accumulated Other Comprehensive Income (Loss)
at December 31, 2001 includes cumulative translation losses of $12 ($11 at
December 31, 2000), minimum pension liability of $5 ($5 at December 31, 2000)
and other unrealized losses of $1. We do not provide for U.S. income taxes on
foreign currency translation adjustments since we do not provide for such taxes
on undistributed earnings of foreign subsidiaries.

  Goodwill

   Goodwill, the excess of the purchase price of the acquired businesses over
the fair value of the respective net assets, is amortized principally over 30
years on a straight-line basis. We periodically review the value of our
goodwill to determine if any impairment has occurred. We assess the potential
impairment of recorded goodwill and other long-lived assets by comparing the
undiscounted value of expected future operating cash flows in relation to the
book value of the goodwill and related long-lived assets. An impairment would
be recorded based on the estimated fair value.

   During the third quarter of 2001, Financial Accounting Standards Board
("FASB"), issued SFAS No. 142, "Goodwill and Other Intangible Assets". SFAS No.
142 requires that goodwill and intangible assets with indefinite useful lives
no longer be amortized, but instead tested for impairment at least annually in
accordance with the provisions of this statement. Goodwill amortization for the
year ended December 31, 2001 was approximately $2. SFAS No. 142 also requires
that intangible assets with estimable useful lives be amortized over their
respective estimated useful lives to their estimated residual values, and
reviewed for impairment in accordance with SFAS No. 121, "Accounting for the
Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed Of."
Commencing January 1, 2002, we will no longer amortize goodwill and will adopt
the provision of SFAS No. 142.

  Environmental Liabilities and Expenditures

   Accruals for environmental matters are recorded when it is probable that a
liability has been incurred and the amount of the liability can be reasonably
estimated, based upon current law and existing technologies. These amounts,
which are not discounted and are exclusive of claims against third parties, are
adjusted periodically as assessment and remediation efforts progress or
additional technical or legal information becomes available. Environmental
remediation costs are charged to expense as incurred. Environmental costs are
capitalized if the costs increase the value of the property and/or mitigate or
prevent contamination from future operations.

  Income Taxes

   Deferred taxes are provided for differences between the financial statement
and tax bases of assets and liabilities using enacted tax rates in effect for
the year in which the differences are expected to reverse.

  Derivative Financial Instruments

   In 1998, the FASB issued SFAS No. 133 "Accounting for Derivative Instruments
and Hedging Activities." It requires an entity to recognize all derivatives as
either assets or liabilities in the statement of financial position and measure
those instruments at fair value. The implementation date of this statement is
effective for all fiscal quarters of fiscal years beginning after June 15,
2000. We adopted SFAS No. 133 on January 1, 2001, and will achieve hedge

                                      36



accounting treatment for substantially all of our business transactions whose
risks are covered using derivative instruments. The hedge accounting treatment
provides for the deferral of gains or losses on derivative instruments until
such time as the related transactions occur. Upon adoption of this statement,
we recorded on January 1, 2001, assets totaling $1.2 and liabilities totaling
$2.1 with an offsetting entry to Accumulated Other Comprehensive Income (Loss).
The new standard does not allow for hedge accounting treatment on the portion
of any hedge that is not effective. The ineffectiveness, which was recorded at
January 1, 2001 was a loss of less than $0.1.

   Previously, we accounted for forward contacts to buy and sell foreign
currencies under SFAS No. 52, "Foreign Currency Translation" and futures
contracts to reduce the impact of metal price fluctuations under SFAS No. 80,
"Accounting for Futures Contracts." At December 31, 2001, we had no forward
contracts to buy or sell foreign currencies. At December 31, 2000, we had
forward contracts to sell foreign currencies with a face value of $4 (which
approximates carrying value) and no forward contracts to buy foreign
currencies. Foreign currency exchange gains (losses), net of taxes, were less
than $(1) in 2001, less than $1 in 2000 and less than $(1) in 1999. At December
31, 2001, we had open positions in futures contracts totaling $47 (2000-$27).
If the futures contracts had been settled on December 31, 2001, we would have
recognized a loss of $1. Gains (losses) on futures contracts, net of taxes,
were $(6) in 2001, less than $1 in 2000 and $1 in 1999.

   We use cash flow hedges of commodities such as copper, zinc, nickel and lead
to provide a measure of stability in managing our exposure to price
fluctuations. We also use fair value hedges of interest rate swaps as a means
of hedging changes in interest rates on our outstanding debt obligations.

   At December 31, 2001, Accumulated Other Comprehensive Income (Loss) included
a pretax decline in fair value of $3. In addition, the unfavorable ineffective
portion of changes in fair value resulted in a $1 charge to earnings for the
year ended December 31, 2001. Offsetting the above, there were assets totaling
$1 and liabilities of $5.

   Our foreign currency contracts and certain commodity derivatives did not
meet the criteria of SFAS No. 133 to qualify for hedge accounting. The
cumulative effect of items not qualifying for hedge accounting for the year
2001 was not material to earnings.

  Financial Instruments

   The carrying values of cash and cash equivalents, accounts receivable and
accounts payable approximated fair values due to the short-term maturities of
these instruments. The fair value of our long-term debt was determined based on
current market rates for debt of the same risk and maturities. At December 31,
2001, the estimated fair value of debt was $432 (2000-$231). The fair values of
currency forward contracts were estimated based on quoted market prices for
contracts with similar terms.

  Stock-Based Compensation

   We account for stock-based compensation under SFAS No. 123, "Accounting for
Stock-Based Compensation." As allowed under SFAS No. 123, we have chosen to
continue to account for stock-based compensation cost in accordance with
Accounting Principles Board Opinion ("APB") No. 25, "Accounting for Stock
Issued to Employees." Under this opinion, compensation cost is recorded when
the fair market value of our stock at the date of grant for fixed options
exceeds the exercise price of the stock option. Our policy is to grant stock
options at the fair market value of our common stock on the date of the grant.
Compensation cost for restricted stock awards is accrued over the life of the
award based on the quoted market price of our stock at the date of the award.

EARNINGS PER SHARE

   Basic earnings (loss) per share are computed by dividing net income (loss)
by the weighted average number of common shares outstanding. Diluted earnings
per share reflect the dilutive effect of stock options (refer to footnote
called "Stock Options").

                                      37





  Computation of Earnings (Loss) per Share                  2001   2000  1999
  ----------------------------------------                 ------  ----- -----
                                                                
  Basic earnings (loss) per share
  Income (loss) from continuing operations................ $   (9) $  81 $  17
                                                           ------  ----- -----
  Basic shares............................................   43.6   44.9  45.4
                                                           ------  ----- -----
  Basic earnings (loss) per share-continuing operations... $(0.22) $1.80 $0.36
                                                           ======  ===== =====
  Diluted earnings (loss) per share
  Income (loss) from continuing operations................ $   (9) $  81 $  17
                                                           ------  ----- -----
  Diluted shares:
   Basic shares...........................................   43.6   44.9  45.4
   Stock options..........................................     --     .1    --
                                                           ------  ----- -----
                                                             43.6   45.0  45.4
                                                           ======  ===== =====
  Diluted earnings (loss) per share-continuing operations. $(0.22) $1.80 $0.36
                                                           ======  ===== =====


   Our Board of Directors approved two share repurchase programs to repurchase
a total of 10 million shares of our outstanding common stock. During 2001, 2000
and 1999 we repurchased 0.7 million, 1.2 million and 0.9 million shares,
respectively. Approximately 298,000 shares remain to be repurchased under these
programs.

SHORT-TERM INVESTMENTS

   Short-term investments, which approximate fair value, were $37 and $25 at
December 31, 2001 and 2000, respectively, and represented the equity value of
the company-owned life insurance programs and in 2001 included equity shares
resulting from the non-cash Prudential demutualization.

TRADE RECEIVABLES

   Allowance for doubtful items was $7 at December 31, 2001 and 2000.
Provisions charged to operations were $2 in 2001 and 2000 and less than $1 in
1999. Bad debt write-offs, net of recoveries, were $2 in 2001, $1 in 2000 and
less than $1 in 1999.

INVENTORIES



                                                2001  2000
                                                ----  ----
                                                
                     Raw materials and supplies $119  $126
                     Work in process...........   98   111
                     Finished goods............   64    60
                                                ----  ----
                                                 281   297
                     LIFO reserves.............  (58)  (81)
                                                ----  ----
                        Inventory, net......... $223  $216
                                                ====  ====


   Inventories valued using the LIFO method comprised 79% and 77% of the total
inventories at December 31, 2001 and 2000, respectively. During 2001, LIFO
inventory quantities were reduced resulting in an increase in pretax income of
$4.

PROPERTY, PLANT AND EQUIPMENT



                                           Useful Lives   2001   2000
                                           ------------- ------ ------
                                                       
          Land and improvements to land    10 - 20 Years $   60 $   58
          Buildings and building equipment 10 - 25 Years    196    189
          Machinery and equipment          3 - 12 Years.  1,411  1,329
          Leasehold improvements........................      3      4
          Construction in progress......................     48     81
                                                         ------ ------
           Property, plant and equipment...............   1,718  1,661
          Less accumulated depreciation.................  1,241  1,178
                                                         ------ ------
           Property, plant and equipment, net..........  $  477 $  483
                                                         ====== ======


                                      38



   Leased assets capitalized and included above are not significant.
Maintenance and repairs charged to operations amounted to $106, $118 and $116
in 2001, 2000 and 1999, respectively.

INVESTMENTS--AFFILIATED COMPANIES

   We have a 50% ownership interest in Sunbelt Chlor Alkali Partnership and
Yamaha-Olin Metal Corporation, both of which are accounted for using the equity
method of accounting. Combined financial positions and results of operations of
these two equity-basis affiliates in their entirety were as follows:



                                                       100% Basis
                                                    ---------------
                                                    2001  2000 1999
                                                    ----  ---- ----
                                                      
           Condensed Balance Sheet Data:
                     Current assets................ $ 27  $ 35
                     Noncurrent assets.............  149   160
                     Current liabilities...........    9    13
                     Noncurrent liabilities........  195   195
           Condensed Income Statement Data:
                     Net sales.....................   98   148 $110
                     Gross profit..................   17    38   12
                     Net income (loss).............  (10)   11  (21)


   Pursuant to a note purchase agreement dated December 22, 1997, the Sunbelt
joint venture sold $97.5 of Guaranteed Secured Senior Notes Due 2017, Series O,
and $97.5 of Guaranteed Secured Senior Notes Due 2017, Series G. We refer to
these notes as the Sunbelt Notes. The Sunbelt Notes bear interest at a rate of
7.23% per annum, payable semiannually in arrears on each June 22 and December
22.

   We have guaranteed Series O of the Sunbelt Notes, and PolyOne Corporation
("PolyOne"), our partner in this venture, has guaranteed Series G of the
Sunbelt Notes, in both cases pursuant to customary guarantee agreements. Our
guarantee and PolyOne's guarantee are separate, rather than joint. In other
words we are not required to make any payments to satisfy the indebtedness of
PolyOne. An insolvency or bankruptcy of PolyOne will not automatically trigger
acceleration of the Sunbelt Notes or cause us to be required to make payments
under our guarantee, even if PolyOne is required to make payments under its
guarantee. However, if the Sunbelt joint venture does not make timely payments
on the Sunbelt Notes, whether as a result of a failure to pay on a guarantee or
otherwise, the holders of the Sunbelt Notes may proceed against the assets of
the Sunbelt joint venture for repayment.

   Beginning on December 22, 2002 and each year thereafter, our Sunbelt joint
venture is required to repay approximately $12 of the Sunbelt Notes, of which
approximately $6 is attributable to Series O of the Sunbelt Notes. In the event
our Sunbelt joint venture cannot make any of these payments, we would be
required to fund our half of such payment. In certain other circumstances, we
may also be required to repay the Sunbelt Notes prior to their maturity. We and
PolyOne have agreed that, if we or PolyOne intend to transfer our respective
interests in the Sunbelt joint venture and the transferring party is unable to
obtain consent from holders of 80% of the aggregate principal amount of the
indebtedness related to the guarantee being transferred after good faith
negotiations, then we and PolyOne will be required to repay our respective
portions of the Sunbelt Notes. In such event, any make whole or similar
penalties or costs will be paid by the transferring party.

SHORT-TERM BORROWINGS

   At December 31, 2001, we had an unsecured revolving credit agreement with a
group of banks with commitments totaling $165, all of which was available at
December 31, 2001 and 2000. In addition, we had a $25 credit facility with
another bank, none of which was used. On January 3, 2002, we entered into a new
three-year senior revolving credit facility of $140, including a sublimit for
letters of credit. The new facility replaces our existing credit facilities and
will expire on January 3, 2005. We may select various floating rate borrowing
options. The senior credit facility includes various customary restrictive
covenants including restrictions related to the ratio of debt to earnings
before interest expense, taxes, depreciation and amortization ("leverage
ratio") and the ratio of earnings before interest expense, taxes, depreciation
and amortization to interest expense ("coverage ratio"). In the event that the
leverage ratio equals or exceeds 3.75, we are required under this senior credit
facility to grant a security interest in all of our U.S. inventory and accounts
receivables. No assets of our subsidiaries will secure our obligation under our
senior credit facility.

                                      39



LONG-TERM DEBT



                                                                             2001 2000
                                                                             ---- ----
                                                                            
Notes payable:
 7.11%, due 2005............................................................ $ 50 $ 50
 7.30% due 2005.............................................................    2   --
 7.75%, due 2005............................................................   11   11
 8%, due 2002...............................................................  100  100
 9.125%, due 2011...........................................................  200   --
Industrial development and environmental improvement obligations:
 Payable at interest rates of 0.85% to 5.60%, which vary with short-term tax
   exempt rates, due 2004-2017..............................................   36   35
 Payable at interest rates of 6% to 6.88%, due 2002-2008....................   32   33
                                                                             ---- ----
       Total senior debt....................................................  431  229
Amounts due within one year.................................................  102    1
                                                                             ---- ----
 Total long-term debt....................................................... $329 $228
                                                                             ==== ====


   In December 2001, we sold $200 of 9.125% Senior Notes Due 2011 with a
maturity date of December 15, 2011. We used a portion of the net proceeds of
this offering to repay our short-term indebtedness and plan to use $100 to
repay the 8% notes due in June 2002. Any remaining proceeds will be available
for general corporate purposes. In February 2002, we swapped interest payments
on $30 principal amount of our 9.125% Senior Notes to an estimated floating
rate of 5.68%.

   In December 2001, we swapped interest payments on $50 principal amount of
our 9.125% Senior Notes due 2011 to a floating rate (5.55125% at December 31,
2001). During 1992, we swapped interest payments on $50 principal amount of the
8% notes due 2002 to a floating rate (1.91375% at December 31, 2001). In June
1995, we offset this transaction by swapping interest payments to a fixed rate
of 6.485%. The difference between interest paid and interest received is
included as an adjustment to interest expense. A settlement of the fair market
value of the interest rate swaps as of December 31, 2001 would result in a cost
of less than $1. Counter-parties to interest rate swap contracts are major
financial institutions. Our loss in the event of nonperformance by a
counter-party is not significant.

   At December 31, 2001, there remained $48 unissued under the medium-term note
program registered in May 1994.

   Annual maturities of long-term debt are $102 in 2002, $2 in 2003, $27 in
2004, $63 in 2005, $1 in 2006 and $236 thereafter.

   Interest expense incurred on short-term borrowings and long-term debt
totaled $18 in 2001, $17 in 2000 and $16 in 1999; of which $1 was capitalized
in 2001 and 2000.

PENSION PLANS AND RETIREMENT BENEFITS

   Essentially all of our domestic pension plans are non-contributory
final-average-pay or flat-benefit plans and all domestic employees are covered.
Our funding policy is consistent with the requirements of federal laws and
regulations. We provide certain postretirement health care and life insurance
benefits for eligible active and retired domestic employees.



                                                                  Other
                                                               Postretirement
                                              Pension Benefits  Benefits
                                              --------------   -------------
      Change in Benefit Obligation             2001     2000   2001    2000
      ----------------------------            ------   ------  ----    ----
                                                           
      Benefit obligation at beginning of year $1,135   $1,068  $ 70    $ 65
      Service cost...........................     14       21     1       2
      Interest cost..........................     88       83     5       5
      Amendments.............................     24       --     2      --
      Actuarial loss.........................     66       51     4      11
      Benefits paid..........................    (92)     (88)  (13)    (13)
      Curtailment............................     25       --     6      --
                                              ------   ------   ----   ----
      Benefit obligation at end of year...... $1,260   $1,135  $ 75    $ 70
                                              ======   ======   ====   ====


                                      40





                                                        Pension Benefits
                                                        --------------
         Change in Plan Assets                           2001     2000
         ---------------------                          ------   ------
                                                           
         Fair value of plan assets at beginning of year $1,297   $1,424
         Actual return on plan assets..................    (47)     (44)
         Employer contribution.........................      6        5
         Benefits paid.................................    (92)     (88)
                                                        ------   ------
         Fair value of plan assets at end of year...... $1,164   $1,297
                                                        ======   ======


   At December 31, 2001 and 2000, the benefit obligation of the qualified
pension plan was $1,209 and $1,086, respectively; and the fair value of the
assets of the qualified pension plan was $1,164 and $1,297, respectively. At
December 31, 2001 and 2000, the benefit obligation of the non-qualified pension
plan was $51 and $49, respectively.



                                                                          Other
                                                                       Postretirement
                                                      Pension Benefits  Benefits
                                                      ---------------  -------------
                                                      2001     2000    2001    2000
                                                      ----     -----   ----    ----
                                                                   
 Funded status....................................... $(96)   $ 162    $(75)   $(70)
 Unrecognized actuarial (gain) loss..................   82     (163)     23      20
 Unrecognized prior service cost.....................   37       22      (1)     (3)
                                                       ----    -----    ----   ----
 Net amount recognized............................... $ 23    $  21    $(53)   $(53)
                                                       ====    =====    ====   ====
 Amounts recognized in the consolidated balance sheet
   consist of:
    Prepaid benefit cost in other assets............. $ 61    $  57    $ --    $ --
    Accrued benefit liability in other liabilities...  (46)     (44)    (53)    (53)
    Accumulated other comprehensive income...........    8        8      --      --
                                                       ----    -----    ----   ----
    Net amount recognized............................ $ 23    $  21    $(53)   $(53)
                                                       ====    =====    ====   ====




Principal Assumptions for Pension and Postretirement Benefits as
of December 31, 2001                                                       2001 2000
- -------------------------------------------------------------------------  ---- ----
                                                                          
Weighted average discount rate............................................ 7.5% 7.75%
Weighted average rate of compensation increase............................ 4.5%  4.6%
Long-term rate of return on assets........................................ 9.5%  9.5%




                                                                   Other
                                                               Postretirement
                                            Pension Benefits      Benefits
                                          -------------------  --------------
  Components of Net Periodic Benefit Cost
  (Income)                                 2001   2000   1999  2001 2000 1999
  --------                                -----  -----  -----  ---- ---- ----
                                                       
    Service cost......................... $  14  $  21  $  15  $ 1  $ 2  $ 1
    Interest cost........................    88     83     79    5    5    5
    Expected return on plan assets.......  (120)  (114)  (103)  --   --   --
    Amortization of prior service cost...     6      4      4   --   (1)  --
    Recognized actuarial loss (gain).....    (2)   (12)    (6)   1    1   --
    Curtailment..........................    17     --     --    6   --   --
                                          -----  -----  -----  ---  ---  ---
    Net periodic benefit cost (income)... $   3  $ (18) $ (11) $13  $ 7  $ 6
                                          =====  =====  =====  ===  ===  ===


   Our common stock represented approximately 1% of the plan assets at December
31, 2001 and 2000, respectively.

   Our foreign subsidiaries maintain pension and other benefit plans, which are
consistent with statutory practices and are not significant.

   Our pension plan provides that if, within three years following a change of
control of Olin, any corporate action is taken or filing made in contemplation
of, among other things, a plan termination or merger or other transfer of
assets or liabilities of the plan, and such termination, merger or transfer
thereafter takes place, plan benefits would automatically be increased for
affected participants (and retired participants) to absorb any plan surplus.

   The accumulated postretirement benefit obligation was determined using the
projected unit credit method and an assumed discount rate of 7.5% in 2001 and
7.75% in 2000. The assumed health care cost trend rate used for pre-65 retirees
was 5.75% in 2001, 6.5% in 2000 and 7.5% in 1999, declining one-half percent
per annum to 5%. For post-65 retirees, we provide a fixed dollar benefit, which
is not subject to escalation.

                                      41



   Assumed health care cost trend rates have a significant effect on the
amounts reported for the postretirement health care plan. A
one-percentage-point increase (decrease) in assumed health care cost trend
rates would have a less than $1 increase (decrease) in total service and
interest cost components and a $2 increase (decrease) in the postretirement
benefit obligation.

INCOME TAXES



 Components of Pretax Income (Loss) from Continuing Operations 2001  2000 1999
 ------------------------------------------------------------- ----  ---- ----
                                                                 
          Domestic............................................ $(20) $126 $24
          Foreign.............................................    7     5   3
                                                               ----  ---- ---
          Pretax income (loss)................................ $(13) $131 $27
                                                               ====  ==== ===
          Components of Income Tax Expense (Benefit)
          Currently payable:..................................
             Federal.......................................... $  5  $ 26 $(9)
             State............................................   (2)    5   5
             Foreign..........................................    2     2   3
                                                               ----  ---- ---
                                                                  5    33  (1)
          Deferred............................................   (9)   17  11
                                                               ----  ---- ---
          Income tax expense (benefit)........................ $ (4) $ 50 $10
                                                               ====  ==== ===


   The following table accounts for the difference between the actual tax
provision and the amounts obtained by applying the statutory U.S. federal
income tax rate of 35% to the income from continuing operations before taxes.



         Effective Tax Rate Reconciliation (Percent) 2001  2000   1999
         ------------------------------------------- ----  ----  -----
                                                        
           Statutory federal tax rate............... 35.0  35.0   35.0
           Foreign rate differential................  1.3   0.3    4.3
           Export tax incentive.....................  5.3  (0.4)  (9.0)
           Company-owned life insurance programs.... (2.0)  0.2    6.9
           State income taxes, net..................  4.7   6.0  (13.0)
           Change in valuation allowance............ (9.5) (2.2)  22.2
           Equity income of foreign affiliates......  3.3  (0.5)  (2.2)
           Other, net............................... (7.3) (0.2)  (7.2)
                                                     ----  ----  -----
           Effective tax rate....................... 30.8  38.2   37.0
                                                     ====  ====  =====




         Components of Deferred Tax Assets and Liabilities 2001  2000
         ------------------------------------------------- ----  ----
                                                           
              Deferred tax assets:
               Pension and postretirement benefits........ $ 12  $ 12
                 Environmental reserves...................   39    43
                 Accrued liabilities......................   26    27
                 Minimum tax credits......................   23    15
                 State net operating losses...............    7     6
                 Other miscellaneous items................   36    25
                                                           ----  ----
              Total deferred tax assets...................  143   128
              Valuation allowance.........................   (5)   (2)
                                                           ----  ----
              Net deferred tax assets.....................  138   126
                                                           ----  ----
              Deferred tax liabilities:
                 Property, plant and equipment............   66    64
                 Capital loss.............................   80    80
                 Other miscellaneous items................   29    33
                                                           ----  ----
              Total deferred tax liabilities..............  175   177
                                                           ----  ----
              Net deferred tax liability.................. $ 37  $ 51
                                                           ====  ====


                                      42



   Included in Other Current Assets at December 31, 2001 and 2000 are $35 and
$29, respectively, of net current deferred assets. The deferred tax provision
for 2001 does not reflect the tax effect of $1 resulting from hedging activity
under SFAS No. 133 or $4 resulting from the acquisition of Monarch. For the
year 2000, the deferred tax provision does not reflect $2 resulting from
additional minimum pension liability adjustment required by SFAS No. 87,
"Employers Accounting for Pensions."

   Realization of the net deferred tax assets is dependent on future reversals
of existing taxable temporary differences and adequate future taxable income,
exclusive of reversing temporary differences and carryforwards. Although
realization is not assured, we believe that it is more likely than not that the
net deferred tax assets will be realized.

   We have state net operating loss carryforwards of approximately $123, which
are available to offset future state taxable income, if any, through 2014. We
also have minimum tax credit carryforwards of approximately $23, which are
available to reduce future federal regular income taxes, if any, over an
indefinite period.

   At December 31, 2001, our share of the cumulative undistributed earnings of
foreign subsidiaries was approximately $7. No provision has been made for U.S.
or additional foreign taxes on the undistributed earnings of foreign
subsidiaries since we intend to continue to reinvest indefinitely these
earnings. Foreign tax credits would be available to substantially reduce or
eliminate any amount of additional U.S. tax that might be payable on these
foreign earnings in the event of distributions or sale.

   We are currently subject to ongoing audits by the Internal Revenue Service
in connection with our Federal tax returns for the years from 1992 to 1998;
however, we have closed all tax years through 1991. Depending on the outcome of
these audits, we may be required to pay additional taxes, and any additional
taxes and related interest could be substantial. We have reserved amounts which
we believe will be sufficient for any adverse outcome, but the actual amount of
any such additional taxes and the timing of any such payments is uncertain.

ACCRUED LIABILITIES

   Included in accrued liabilities are the following items:



                                                         2001 2000
                                                         ---- ----
                                                        
              Accrued compensation and employee benefits $ 34 $ 49
              Environmental.............................   27   25
              Accrued insurance.........................   11   13
              Accrued cost for restructuring............   12   --
              Other.....................................   52   61
                                                         ---- ----
                                                         $136 $148
                                                         ==== ====


CONTRIBUTING EMPLOYEE OWNERSHIP PLAN

   The Contributing Employee Ownership Plan is a defined contribution plan
available to essentially all domestic employees, which provides a match of
employee contributions. We are matching employee contributions with common
stock. Expenses related to the plan are based on common stock allocated to
participants. These costs (primarily our contributions) amounted to $6 in 2001
and $5 in 2000 and 1999.

   Employees become vested in the value of the contributions we make to the
CEOP according to a schedule based on service. After two years of service,
participants are 25% vested. They vest in increments of 25% for each additional
year and after five years of service, they are 100% vested in the value of the
contributions that we have made to their accounts.

   Employees may transfer any or all of the value of the investments purchased
with their own contributions, including Olin Common Stock, to any one or
combination of investments available in the Plan. Such transfers may be made
without limitation, at any time and as often as employees choose. The Olin
common stock purchased with our contributions may not be transferred until
employees terminate employment with the company. However, employees who are age
50 or older may withdraw any or all of the value of the Olin common stock
purchased with our contributions without the usual suspension of contribution
penalty. Provided the amount of the withdrawal is rolled over to an Individual
Retirement Account, tax payments would be deferred until the employee takes a
distribution from the Individual Retirement Account.

                                      43



STOCK OPTIONS

   Under the stock option plans, options may be granted to purchase shares of
our common stock at not less than fair market value at the date of grant, and
are exercisable for a period not exceeding ten years from that date. Options
granted under the 1996 Stock Option Plan and the 2000 and the 1991 Long Term
Incentive Plans vest over three years. In 2001, long term incentive awards were
given with stock options representing one-half of the aggregate value of the
long term incentive award opportunity, and performance share awards making up
the other half. The option price was set at the fair market value of common
stock on the date of the grant, and the options have a ten-year term. The other
half of the individual long term incentive award takes the form of performance
shares, with the number of performance shares based on the competitive analysis
and the price of our stock at the time of the grant. At the end of a three-year
performance cycle, participants receive a performance share award denominated
in shares of our stock, paid half in shares of our stock and half in cash,
based on Olin's average annual return on capital in relation to the average
annual return on capital among the S&P MidCap 400 companies. In 2000, a
one-time grant of Performance Accelerated Vesting Stock Options was granted
with an exercise price of $18.97, which represented fair value. Options for
924,000 shares were outstanding at December 31, 2001. These options have a term
of 120 months and vest in 119 months, and can vest early, but only if the stock
price increases to $28 per share or more for 10 days in any 30 calendar day
period.

   The 2000 Long Term Incentive Plan and the 1996 Stock Option Plan are the
only plans with stock options available for future grants. At December 31,
2001, total shares of 2,296,533 were available for grant under all active
stock-based plans. Of this total, stock options of 1,902,375 shares and stock
awards of 394,158 shares were available for future grants. As a result of the
spin-off of Arch Chemicals the outstanding Olin options as of February 8, 1999
were converted into both an option to purchase Olin common stock and an option
to purchase Arch Chemicals common stock with an adjustment of the exercise
price designed to preserve the "intrinsic value" at the time of the spin-off.
Olin will be responsible for delivering shares of Olin common stock upon
exercise, and Arch Chemicals will be responsible for delivering shares of Arch
Chemicals stock upon exercise. The options maintain the original vesting
schedule. The following table has been restated to reflect the new option price
of the Olin options as a result of the transaction described above.






                                                              Weighted Average
                                               Option Price     Option Price
                                     Shares     Per Share        Per Share
                                   ---------  --------------- ----------------
                                                     
  Outstanding at January 1, 1999   3,113,149  $13.34 - $29.69      $22.85
   Granted........................   784,150   12.72 -  15.85       15.84
   Exercised......................        --               --          --
   Canceled.......................  (218,049)  15.85 -  29.69       21.09
                                   ---------  ---------------      ------
  Outstanding at December 31, 1999 3,679,250   12.72 -  27.17       21.46
   Granted........................ 1,943,800   18.97                18.97
   Exercised......................   (67,111)  13.69 -  17.16       16.09
   Canceled.......................  (142,995)  15.85 -  27.17       20.22
                                   ---------  ---------------      ------
  Outstanding at December 31, 2000 5,412,944   12.72 -  27.17       20.67
   Granted........................   451,300   15.66 -  20.67       18.59
   Exercised......................  (161,093)  13.34 -  17.16       14.53
   Canceled.......................   (66,879)  15.85 -  27.17       20.62
                                   ---------  ---------------      ------
  Outstanding at December 31, 2001 5,636,272  $12.72 - $27.17      $20.68
                                   =========  ===============      ======


   Of the outstanding options at December 31, 2001, options covering 3,444,871
shares are currently exercisable at a weighted average exercise price of $22.01
and options covering 689,645 shares are held by Arch Chemicals employees. At
December 31, 2001 and 2000, the average exercise period for the outstanding
options was 75 months and 82 months, respectively.

   At December 31, 2001, common shares reserved for issuance under the 1988
Stock Option Plan, the 1991 Long Term Incentive Plan, the 1996 Stock Option
Plan, the 2000 Long Term Incentive Plan, and Options Available Only for Arch
Employees were 8,047,486. An additional 688,640 shares were reserved under the
Monarch Brass & Copper

                                      44



Corp. ("Monarch") Deferral Plan, 1997 Stock Plan for Non-Employee Directors and
the Employee Deferral Plan, and of these shares, approximately 117,000 shares
were committed.

   In 1996, we adopted SFAS No. 123, "Accounting for Stock-Based Compensation"
and as permitted by SFAS No. 123, we continue to account for the costs of stock
compensation in accordance with APB No. 25. Pro forma net income (loss) and
earnings (loss) per share were calculated based on the following assumptions as
if we had recorded compensation expense for the stock options granted during
the year. The fair value of each option granted during 2001, 2000 and 1999 was
estimated on the date of grant, using the Black-Scholes option-pricing model
with the following weighted-average assumptions used: dividend yield of 5.69%
in 2001, 4.21% in 2000 and 5.35% in 1999, risk-free interest rate of 4.92% in
2001, 5.18% in 2000 and 6.25% in 1999, expected volatility of 29% in 2001, 2000
and 1999 and an expected life of 7 years. The fair value of options granted
during 2001, 2000 and 1999 was $5.34, $5.59 and $3.85, respectively. The
following table shows the difference between reported and pro forma net income
(loss) and earnings (loss) per share as if we had recorded compensation expense
for the stock options granted during the year.



           ($in millions, except per share data)  2001   2000  1999
           ------------------------------------- ------  ----- -----
                                                      
                    Net Income (Loss)
                        As reported............. $   (9) $  81 $  21
                         Pro forma..............    (12)    77    17
                    Per Share Data:
                     Basic
                        As reported.............  (0.22)  1.80  0.45
                         Pro forma..............  (0.27)  1.71  0.38
                     Diluted
                        As reported.............  (0.22)  1.80  0.45
                         Pro forma..............  (0.27)  1.71  0.38


SHAREHOLDER RIGHTS PLAN

   Effective February 1996, our Board of Directors adopted a new Shareholder
Rights Plan to replace the prior plan which had been adopted in 1986. This plan
is designed to prevent an acquirer from gaining control of us without offering
a fair price to all shareholders. Each right entitles a shareholder (other than
the acquirer) to buy one-five hundredth share of Series A Participating
Cumulative Preferred Stock at an exercise price of one hundred twenty dollars.
The rights are exercisable only if a person acquires more than 15% of our
common stock or if our Board of Directors so determines following the
commencement of a tender or exchange offer to acquire more than 15% of our
common stock. If any person acquires more than 15% of our common stock and in
the event of a subsequent merger or combination, each right will entitle the
holder (other than the acquirer) to purchase stock or other property of the
acquirer having a value of twice the exercise price. We can redeem the rights
at $.005 per right for a certain period of time. The rights will expire on
February 27, 2006, unless redeemed earlier by us.

SEGMENT INFORMATION

   We define segment operating income as earnings before interest expense,
interest income, other income, restructuring charge and unusual items and
income taxes, and include the operating results of non-consolidated affiliates.
Segment operating results in 2001 exclude the restructuring charge and unusual
items ($42 million, pretax).

                                      45





                                                                                   2001    2000    1999
Sales:                                                                            ------  ------  ------
                                                                                         
   Chlor Alkali Products......................................................... $  384  $  392  $  336
   Metals........................................................................    618     880     773
   Winchester....................................................................    269     277     286
                                                                                  ------  ------  ------
Total sales...................................................................... $1,271  $1,549  $1,395
                                                                                  ======  ======  ======
Operating Income (Loss) Before Restructuring Charges and Unusual Items:
   Chlor Alkali Products......................................................... $    8  $   27  $  (58)
   Metals........................................................................      7      95      77
   Winchester....................................................................      7      20      21
                                                                                  ------  ------  ------
       Total Operating Income Before Restructuring Charges and Unusual Items.....     22     142      40
   Interest Expense..............................................................     17      16      16
   Interest Income...............................................................      1       2       2
   Other Income..................................................................     22       3       1
   Restructuring Charge..........................................................    (39)     --      --
   Unusual Items (Recorded in Cost of Goods Sold)................................     (2)     --      --
                                                                                  ------  ------  ------
Income (Loss) from Continuing Operations before Taxes............................ $  (13) $  131  $   27
                                                                                  ======  ======  ======
Equity Income (Loss) in Affiliated Companies, Included in Operating Income:
   Chlor Alkali Products......................................................... $   (9) $   --  $  (13)
   Metals........................................................................      1       2       2
                                                                                  ------  ------  ------
Total Equity Income in Affiliated Companies...................................... $   (8) $    2  $  (11)
                                                                                  ======  ======  ======
Depreciation Expense:
   Chlor Alkali Products......................................................... $   39  $   37  $   36
   Metals........................................................................     33      29      30
   Winchester....................................................................     13      13      12
                                                                                  ------  ------  ------
Depreciation Expense............................................................. $   85  $   79  $   78
                                                                                  ======  ======  ======
Amortization Expense:
   Metals........................................................................ $    2  $    2  $    2
                                                                                  ======  ======  ======
Capital Spending:
   Chlor Alkali Products......................................................... $   22  $   31  $   27
   Metals........................................................................     36      51      33
   Winchester....................................................................      6      12      13
   Other.........................................................................      1       1      --
                                                                                  ------  ------  ------
Total Capital Spending........................................................... $   65  $   95  $   73
                                                                                  ======  ======  ======
Assets:
   Chlor Alkali Products......................................................... $  217  $  250  $  263
   Metals........................................................................    503     500     461
   Winchester....................................................................    142     156     165
   Other.........................................................................    357     217     174
                                                                                  ------  ------  ------
Total Consolidated Assets........................................................ $1,219  $1,123  $1,063
                                                                                  ======  ======  ======
Investments & Advances to (from) Affiliated Companies at Equity:
   Chlor Alkali Products......................................................... $  (22) $  (13) $   (3)
   Metals........................................................................      7       7       6
                                                                                  ------  ------  ------
Total Investments & Advances--Affiliated Companies............................... $  (15) $   (6) $    3
                                                                                  ======  ======  ======


                                      46



   Segment operating income includes an allocation of corporate charges based
on various allocation methodologies. Segment assets include only those assets
which are directly identifiable to a segment and do not include such items as
cash, deferred taxes and other assets. Sales by segment substantially represent
sales for our three product lines.

                                           2001    2000    1999
              Geographic Data:            ------  ------  ------
              Sales
                 United States........... $1,214  $1,488  $1,346
                 Foreign.................     57      61      49
                 Transfers between areas.
                 United States...........     14      14      11
                 Eliminations............    (14)    (14)    (11)
                                          ------  ------  ------
                 Total Sales............. $1,271  $1,549  $1,395
                                          ======  ======  ======
              Assets
                 United States........... $1,171  $1,069  $1,016
                 Foreign.................     45      47      44
                 Investments.............      7       7       6
                 Eliminations............     (4)     --      (3)
                                          ------  ------  ------
              Total Assets............... $1,219  $1,123  $1,063
                                          ======  ======  ======

   Transfers between geographic areas are priced generally at prevailing market
prices. Export sales from the United States to unaffiliated customers were $61,
$93, and $73 in 2001, 2000, and 1999, respectively.

ACQUISITIONS

   In June 2001, we acquired the stock of Monarch for approximately $48.
Monarch was a privately held, specialty copper alloy manufacturer headquartered
in Waterbury, CT with annual revenues of approximately $95 in 2000. It produces
and distributes an array of high performance copper alloys and other materials
used for applications in electronics, telecommunications, automotive and
building products. We financed the purchase through our credit lines. The
purchase price exceeded the fair value of the identifiable net assets acquired
by $19. The acquisition has been accounted for using the purchase method of
accounting. The operating results of Monarch, which have been included in the
accompanying financial statements since the date of acquisition, were not
material.

   Supplemental cash flow information on the business acquired is as follows:

                                                     2001
                                                     ----
                      Working capital............... $ 20
                      Property, plant and equipment.   16
                      Goodwill......................   18
                      Debt..........................  (11)
                      Other.........................    5
                                                     ----
                      Purchase price................ $ 48
                                                     ====

RESTRUCTURINGS AND UNUSUAL ITEMS

   For the full year 2001, we recorded restructuring charges totaling $39
pretax and unusual items of $3 pretax for a total of $42.

   In the third quarter, we recorded a pretax charge for restructuring and
unusual items of $29 primarily for costs associated with a salaried workforce
reduction through an early retirement incentive program. Cost of Goods Sold and
Other Income include $2 and $1, respectively, of unusual items. Cost of Goods
Sold included the write-off of inventory associated with cancelled customer
orders. Other Income included the write-off of an investment in an E-commerce
company. The third-quarter restructuring charge of $26 related to the 190
employees retiring in connection with the retirement program and represented
primarily pension and postretirement benefit curtailment losses and severance.
As of December 31, 2001, 150 employees had retired and the remainder will
retire in the first quarter of 2002. The severance of $4 recorded in Accrued
Liabilities will be paid out of our operating cash flows over time.

                                      47



   In the fourth quarter we recorded a restructuring pretax charge of $13
pretax, primarily for costs associated with idling our Indianapolis brass mill,
consolidating distribution operations of the recently acquired Monarch with the
A.J. Oster metals service center business, and reducing staffing levels in
Chlor Alkali Products. A significant portion of the charge relating to the
idling of the Indianapolis facility represented primarily pension and
postretirement curtailment losses and severance for 200 employees. Another
portion of the charge related to 38 Chlor Alkali employees who accepted our
offer of a voluntary special separation program whereby employees accept a
voluntary lay off and receive full separation benefits and also receive their
accrued pension benefits at the same time. The balance of the restructuring
charge relates to costs associated with the consolidation of certain Monarch
facilities in order to optimize distribution operations. The severance and
fringe benefits of $8 recorded in Accrued Liabilities will be paid out of our
operating cash flows over time.

   The following table summarizes the major components of the 2001 charges and
the remaining balances as of December 31, 2001:



                                                                      Accrued
                                                 Original Amounts  Restructuring
                                                  Charge  Utilized     Costs
                                                 -------- -------- -------------
                                                          
Employee early retirement programs and severance   $30      $(21)       $ 9
Optimization of Metals facilities...............     9        (6)         3
Write-off assets................................     3        (3)        --
                                                   ---      ----        ---
                                                   $42      $(30)       $12
                                                   ===      ====        ===


DISCONTINUED OPERATIONS

   On February 8, 1999, we completed the spin-off of our specialty chemicals
businesses as Arch Chemicals, Inc. Under the terms of the spin-off of Arch
Chemicals, we distributed to our holders of common stock as of the close of
business on February 1, 1999 one Arch Chemicals common share for every two
shares of Olin common stock. In February 1999 prior to the distribution, we
borrowed $75 under a credit facility, which liability was assumed by Arch
Chemicals.

   The historical operating results of these businesses are shown net of tax as
discontinued operations in the consolidated statements of income. Accordingly,
1999 includes the operating results of Arch Chemicals for the month of January.
The discontinued operations include an allocation of corporate overhead with
the allocation based on either effort committed or number of employees.
Management believes that the allocation methods used to allocate the costs and
expenses are reasonable; however, such allocated amounts may or may not
necessarily be indicative of what those expenses would have been had Arch
Chemicals operated independently of Olin. Interest expense was not allocated to
Arch Chemicals.

   We have entered into tax sharing agreements with Arch Chemicals effectively
providing that we will be responsible for the tax liability of Arch Chemicals
for the years that Arch Chemicals was included in our consolidated income tax
returns. Income taxes have been allocated to Arch Chemicals based on its pretax
income and calculated on a separate company basis pursuant to the requirements
of SFAS No. 109, "Accounting for Income Taxes". Income taxes allocated to the
discontinued operations were $2 in 1999.

   In addition, we entered into several other agreements with Arch Chemicals,
which cover such matters as technology transfers, transition services,
covenants not to compete and chlorine and caustic supply.

   Condensed historical combined income statement data of the discontinued
operations are summarized below:



                                                     1999
                                                     ----
                                                  
                       Combined Statements of Income
                       Sales........................ $73
                       Net income...................   4


                                      48



ENVIRONMENTAL

   We are party to various governmental and private environmental actions
associated with waste disposal sites and manufacturing facilities. Charges to
income for investigatory and remedial efforts were $14 in 2001, $15 in 2000 and
$17 in 1999. The consolidated balance sheets include reserves for future
environmental expenditures to investigate and remediate known sites amounting
to $100 at December 31, 2001, and $110 at December 31, 2000, of which $73 and
$85 are classified as other noncurrent liabilities, respectively.

   Environmental exposures are difficult to assess for numerous reasons,
including the identification of new sites, developments at sites resulting from
investigatory studies, advances in technology, changes in environmental laws
and regulations and their application, the scarcity of reliable data pertaining
to identified sites, the difficulty in assessing the involvement and financial
capability of other potentially responsible parties and our ability to obtain
contributions from other parties and the lengthy time periods over which site
remediation occurs. It is possible that some of these matters (the outcomes of
which are subject to various uncertainties) may be resolved unfavorably against
us, which could have a material adverse effect on our operating results and
financial condition. At December 31, 2001, we estimate we may have additional
contingent environmental liabilities of $40 in addition to the amounts for
which we have already taken a reserve.

COMMITMENTS AND CONTINGENCIES

   We lease certain properties, such as railroad cars, distribution,
warehousing and office space, data processing and office equipment. Leases
covering these properties generally contain escalation clauses based on
increased costs of the lessor, primarily property taxes, maintenance and
insurance and have renewal or purchase options. Total rent expense charged to
operations amounted to $32 in 2001, $33 in 2000 and $32 in 1999, (sublease
income is not significant). Future minimum rent payments under operating leases
having initial or remaining non-cancelable lease terms in excess of one year at
December 31, 2001 are as follows: $21 in 2002; $20 in 2003; $18 in 2004; $16 in
2005; $15 in 2006; and a total of $61 thereafter.

   On December 31, 1997, we entered into a long-term, sulfur dioxide supply
agreement with Alliance Specialty Chemicals, Inc. ("Alliance"), formerly known
as RFC SO2, Inc. Alliance has the obligation to deliver annually 36,000 tons of
sulfur dioxide. Alliance owns the sulfur dioxide plant, which is located at our
Charleston, TN facility and is operated by us. The price for the sulfur dioxide
is fixed over the life of the contract, and, under the terms of the contract,
we are obligated to make a monthly payment of approximately $.2 regardless of
the amount of sulfur dioxide purchased. Commitments related to this agreement
are approximately $2 per year for each year of 2002 through 2006 and a total of
$12 thereafter.

   There are a variety of non-environmental legal proceedings pending or
threatened against us. Probable losses related to those matters have been
accrued in the accompanying financial statements. Any contingent amounts in
excess of amounts accrued are not expected to have a material adverse effect on
our results of operations, financial position or liquidity.

                                      49



OTHER FINANCIAL DATA

Quarterly Data (Unaudited)



                                     First  Second    Third      Fourth
                                    Quarter Quarter Quarter(1) Quarter(2) Year(1)(2)
                                    ------- ------- ---------- ---------- ----------
2001
- ----
                                                           
Sales.............................. $  334  $  325    $  334     $  278     $1,271
Cost of goods sold.................    295     282       303        242      1,122
Net income (loss)..................      2       7       (19)         1         (9)
Net income (loss) per common share:
 Basic.............................    .06     .15      (.45)        02       (.22)
 Diluted...........................    .06     .15      (.45)        02       (.22)
Common dividends per share             .20     .20       .20        .20        .80
Market price of common stock/(3)/
 High..............................  22.75   22.53     18.00      17.25      22.75
 Low...............................  17.76   14.90     13.30      12.05      12.05

2000
- ----
Sales.............................. $  382  $  397    $  413     $  357     $1,549
Cost of goods sold.................    318     324       340        295      1,277
Net income.........................     19      24        23         15         81
Net income per common share:
 Basic.............................    .43     .52       .52        .34       1.80
 Diluted...........................    .43     .52       .52        .34       1.80
Common dividends per share             .20     .20       .20        .20        .80
Market price of common stock/(3)/
 High..............................  21.50   19.25     18.00      23.19      23.19
 Low...............................  14.88   14.19     15.00      16.00      14.19

- ----------
(1) Operating results in 2001 include a Restructuring Charge and Unusual Items
    of $29 pretax, primarily for costs associated with a salaried workforce
    reduction through an early retirement incentive program.

(2) Operating results in 2001 include an additional Restructuring Charge of $13
    pretax, primarily for costs associated with the consolidation of certain
    Metals facilities in order to optimize distribution operations and a
    voluntary retirement program.

(3) New York Stock Exchange composite transactions.

                                      50



Item 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
         FINANCIAL DISCLOSURE

   Not applicable.

                                   PART III

Item 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

   We incorporate the biographical information relating to our Directors under
the heading "Item 1--Election of Directors" in our Proxy Statement relating to
our 2002 Annual Meeting of Shareholders (the "Proxy Statement") by reference in
this Report. See also the list of executive officers following Item 4 of this
Report. We incorporate the information regarding compliance with Section 16 of
the Securities Exchange Act of 1934, as amended, contained in the paragraph
entitled "Section 16(a) Beneficial Ownership Reporting Compliance" under the
heading "Security Ownership of Directors and Officers" in our Proxy Statement
by reference in this Report.

Item 11.  EXECUTIVE COMPENSATION

   The information under the heading "Executive Compensation" in the Proxy
Statement (but excluding the Report of the Compensation Committee on Executive
Compensation and the Performance Graph) is incorporated by reference in this
Report. The information under the heading "Additional Information Regarding the
Board of Directors--Compensation of Directors" in the Proxy Statement is
incorporated by reference in this Report.

Item 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

   We incorporate the information concerning holdings of our common stock by
certain beneficial owners contained under the heading "Certain Beneficial
Owners" in our Proxy Statement and the information concerning beneficial
ownership of our common stock by our directors and officers under the heading
"Security Ownership of Directors and Officers" in our Proxy Statement by
reference in this Report.

Item 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

   Not applicable.

                                    PART IV

Item 14.  EXHIBITS, CONSOLIDATED FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON
          FORM 8-K

(a)  1.  Consolidated Financial Statements

Included in Item 8 above.

2.  Consolidated Financial Statement Schedules

      Schedules not included herein are omitted because they are inapplicable
   or not required or because the required information is given in the
   consolidated financial statements and notes thereto.

      Separate consolidated financial statements of 50% or less owned
   subsidiaries accounted for by the equity method are not summarized herein
   and have been omitted because, in the aggregate, they would not constitute a
   significant subsidiary.

3.  Exhibits

      Management contracts and compensatory plans and arrangements are listed
   as Exhibits 10(a) through 10(s) below.

   3   (a)  Olin's Restated Articles of Incorporation as amended effective May
            8, 1997--Exhibit 3 to Olin's Form 10-Q for the Quarter ended March
            31, 1997.*
     (b)(1) By-laws of Olin as amended effective January 1, 2002.
   4   (a)  Articles of Amendment designating Series A Participating Cumulative
            Preferred Stock, par value $1 per share --Exhibit 2 to Olin's Form
            8-A dated February 21, 1996, covering Series A participating
            Cumulative Preferred Stock Purchase Rights.*

                                      51



      (b)  Rights Agreement dated as of February 27, 1996 between Olin and
           Chemical Mellon Shareholder Services, LLP, Rights Agent--Exhibit 1
           to Olin's Form 8-A dated February 21, 1996, covering Series A
           Participating Cumulative Preferred Stock Purchase Rights.*
      (c)  Form of Senior Debt Indenture between Olin and Chemical
           Bank--Exhibit 4(a) to Form 8-K dated June 15, 1992; Supplemental
           Indenture dated as of March 18, 1994 between Olin and Chemical
           Bank--Exhibit 4(c) to Registration Statement No. 33-52771 and Second
           Supplemental Indenture dated as of December 11, 2001 between Olin
           and JPMorgan Chase Bank, formerly known as Chemical Bank--Exhibit 4
           to Form 8-K dated December 20, 2001.*
      (d)  Form of Subordinated Debt Indenture between Olin and Bankers Trust
           Company--Exhibit 4(i) to Registration Statement No. 33-4479.*
      (e)  Credit Agreement dated as of January 3, 2002 among Olin and the
           banks named therein--Exhibit 4 to Olin's Form 8-K dated January 10,
           2002.*
    (f)(1) 9.125% Senior Note Due 2011.

              We are party to a number of other instruments defining the rights
           of holders of long-term debt. No such instrument authorizes an
           amount of securities in excess of 10% of the total assets of Olin
           and its subsidiaries on a consolidated basis. Olin agrees to furnish
           a copy of each instrument to the Commission upon request.

   10 (a)  1988 Stock Option Plan for Key Employees of Olin Corporation and
           Subsidiaries as amended through February 23, 1995--Exhibit 10(b) to
           Olin's Form 10-K for 1994.*
      (b)  Amended and Restated Employee Deferral Plan, effective November 1,
           1997, as amended and restated effective as of February 8,
           1999--Exhibit 10(c) to Olin's Form 10-K for 1998.*
      (c)  Olin Senior Executive Pension Plan amended as of July 27,
           2000--Exhibit 10(d) to Olin's Form 10-Q for the quarter ended
           September 30, 2000.*
      (d)  Olin Supplemental Contributing Employee Ownership Plan as amended
           through March 1, 2001--Exhibit 10(d) to Olin's Form 10-Q for the
           quarter ended March 31, 2001.*
      (e)  Olin Corporation Key Executive Life Insurance Program--Exhibit 10(b)
           to Olin's Form 10-Q for quarter ended March 31, 1986.*
      (f)  Form of Olin Corporation Endorsement Split Dollar Agreement
           (effective January 1, 1993)--Exhibit 10(s) to Olin's Form 10-K for
           1992.*
      (g)  Form of executive agreement between Olin and certain executive
           officers as amended December 10, 1998--Exhibit 10(h) to Olin's
           Form 10-K for 1998.*
      (h)  Form of special severance agreement provided to certain employees to
           become operative upon a "change in control" event--Exhibit 10(n) to
           Olin's Form 10-K for 1997.*
      (i)  Olin 1991 Long Term Incentive Plan, as amended through February 23,
           1995--Exhibit 10(u) to Olin's Form 10-K for 1994.*
      (j)  1997 Stock Plan for Non-Employee Directors as amended effective
           February 22, 2001--Exhibit 10(j) to Olin's Form 10-Q for the quarter
           ended March 31, 2001.*
      (k)  Olin Senior Management Incentive Compensation Plan, as amended
           through December 9, 1999--Exhibit A to Olin's 2000 Proxy Statement
           dated March 14, 2000.*
      (1)  Description of Restricted Stock Unit Awards granted under the Olin
           1991 Long Term Incentive Plan--Exhibit 10(bb) to Olin's Form 10-K
           for 1995.*
    (m)(1) Description of Restricted Stock Unit Awards granted under the 2000
           Long Term Incentive Plan.
      (n)  Form of EVA Incentive Plan (Management Incentive Compensation
           Plan)--Exhibit 10(dd) to Olin's Form 10-K for 1996.*
      (o)  1996 Stock Option Plan for Key Employees of Olin Corporation and
           Subsidiaries--Exhibit A to Olin's 1996 Proxy Statement dated March
           12, 1996.*
      (p)  Olin Supplementary and Deferral Benefit Pension Plan restated as of
           February 8, 1999--Exhibit 10(s) to Olin's Form l0-Q for the quarter
           ended March 31, 1999.*
      (q)  Form of Senior Executive Retention Agreement between Olin and
           certain executive officers--Exhibit 10(q) to Olin's Form 10-K for
           1999.*
    (r)(1) Olin Corporation 2000 Long Term Incentive Plan as amended through
           October 25, 2001.
      (s)  2001 Performance Share Program -- Exhibit 10(w) to Olin's Form 10-Q
           for quarter ended March 31, 2001.*
      (t)  Distribution Agreement between Olin Corporation and Arch Chemicals,
           Inc., dated as of February 1, 1999--Exhibit 2.1 to Olin's Form 8-K
           filed February 23, 1999.*
      (u)  Partnership Agreement between Olin Sunbelt, Inc. and 1997
           Chloralkali Venture Inc. dated August 23, 1996--Exhibit 99.1 to
           Olin's Form 8-K dated December 3, 2001.*
      (v)  Amendment to Partnership Agreement between Olin Sunbelt, Inc. and
           1997 Chloralkali Venture Inc. dated December 23, 1997--Exhibit 99.2
           to Olin's Form 8-K dated December 3, 2001.*
      (w)  Amendment to Partnership Agreement between Olin Sunbelt, Inc. and
           1997 Chloralkali Venture Inc. dated December 23, 1997--Exhibit 99.3
           to Olin's Form 8-K dated December 3, 2001.*
      (x)  Amendment to Partnership Agreement between Olin Sunbelt, Inc. and
           1997 Chloralkali Venture Inc. dated April 30, 1998--Exhibit 99.4 to
           Olin's Form 8-K dated December 3, 2001.*
      (y)  Note Purchase Agreement dated December 22, 1997 between the Sunbelt
           Chlor Alkali Partnership and the Purchasers named therein--Exhibit
           99.5 to Olin's Form 8-K dated December 3, 2001.*
      (z)  Guarantee Agreement dated December 22, 1997 between Olin and the
           Purchasers named therein--Exhibit 99.6 to Olin's Form 8-K dated
           December 3, 2001.*
      (aa) Subordination Agreement dated December 22, 1997 between Olin and the
           Subordinated Parties named therein--Exhibit 99.7 to Olin's Form 8-K
           dated December 3, 2001.*
   11      Computation of Per Share Earnings (included in the Note--"Earnings
           Per Share" to Notes to Consolidated Financial Statements in Item 8.)
   12(1)   Computation of Ratio of Earnings to Fixed Charges (unaudited).
   21(1)   List of Subsidiaries.

                                      52



   23    Consent of KPMG LLP dated August 13, 2002.
   99.1  Certification Statement of Chief Executive Officer.
   99.2  Certification Statement of Chief Financial Officer.

    *    Previously filed as indicated and incorporated herein by reference.
         Exhibits incorporated by reference are located in SEC file No. 1-1070
         unless otherwise indicated.
    (1)  Filed with original Form 10-K for 2001.

   Any of the foregoing exhibits are available from the Company by writing to:
Mr. Richard E. Koch, Vice President, Investor Relations and Public Affairs,
Olin Corporation, 501 Merritt 7, P.O. Box 4500, Norwalk, CT 06856-4500.

(b)  Reports on Form 8-K

   Form 8-K filed December 20, 2001, filing Second Supplemental Indenture with
respect to 9.125% Senior Notes due 2011.

   Form 8-K filed December 3, 2001, filing certain documents related to the
partnership between Olin Sunbelt, Inc. and 1997 Chloralkali Venture Inc.

   Form 8-K furnished under Item 9 on October 2, 2001, furnishing a press
release dated October 1, 2001, announcing Olin was lowering its third quarter
diluted earnings per share projection.

                                      53



                                  SIGNATURES

   Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this amended report to be
signed on its behalf by the undersigned, thereunto duly authorized.

Date: August 13, 2002

                                                   
                                                 OLIN CORPORATION

                                              By           /S/  JOSEPH D. RUPP
                                                      -----------------------------
                                                             Joseph D. Rupp
                                                              President and
                                                         Chief Executive Officer


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



          Signature                        Title                   Date
          ---------                        -----                   ----
                                                        

     /S/  JOSEPH D. RUPP       President and Chief Executive  August 13, 2002
- -----------------------------    Officer and Director
       Joseph D. Rupp            (Principal Executive
                                 Officer)

              *                Director and Chairman of the   August 13, 2002
- -----------------------------    Board
      Donald W. Griffin

              *                Director                       August 13, 2002
- -----------------------------
     William W. Higgins

              *                Director                       August 13, 2002
- -----------------------------
    Randall W. Larrimore

              *                Director                       August 13, 2002
- -----------------------------
       Stephen F. Page

             *                 Director                       August 13, 2002
- -----------------------------
  G. Jackson Ratcliffe, Jr.

              *                Director                       August 13, 2002
- -----------------------------
     Richard M. Rompala

  /S/  ANTHONY W. RUGGIERO     Executive Vice President and   August 13, 2002
- -----------------------------    Chief Financial Officer and
     Anthony W. Ruggiero         Director (Principal
                                 Financial Officer)

   /S/  MARY E. GALLAGHER      Vice President and Controller  August 13, 2002
- -----------------------------    (Principal Accounting
      Mary E. Gallagher          Officer)



*By:    /S/  JOSEPH D. RUPP
     -------------------------
          Joseph D. Rupp
         Attorney-in-fact

                                      54