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                             ARCH CHEMICALS, INC.
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SEC 1913 (3-99)




                             Innovative solutions.

                           [PHOTO]           [PHOTO]

                           [PHOTO]           [PHOTO]


                    Arch Chemicals, Inc., headquartered in Norwalk, Conn., is a
                    global specialty chemicals company with leadership positions
                    in four key segments -Microelectronic Materials, HTH Water
                    Products, Treatment Products and Performance Products. Arch
                    serves world leaders in these key markets with forward-
                    looking solutions to meet their chemical needs, employing a
                    global workforce and manufacturing facilities in North
                    America, South America, Europe, Asia and Africa.


CEO's Message                                                        [PHOTO]


Innovative. Focused. Responsive. Arch employs advanced chemistry to make a
positive difference in people's lives. We provide innovative solutions to
customers through a combination of highly valued products and services.

Our specialty businesses

Arch Chemicals is a dynamic company spanning the globe and applying the science
of chemistry to make and distribute products and value-added services that
benefit real people. We are focused on realizing our full potential through
internal growth, strategic acquisitions and alliances, improving the efficiency
of our operations and optimizing our portfolio of businesses.

Our specialty businesses are centered in four core segments: Microelectronic
Materials, HTH Water Products, Treatment Products and Performance Products. In
addition, our businesses include Hydrazine and Sulfuric Acid, which have
traditionally been strong cash generators, permitting us to invest in the growth
of our other businesses.

The growing array of technical capabilities we're amassing in our core
businesses is delivering enhanced value to our customers and will differentiate
us within the industry.

We are proud to be in the business of chemistry, knowing that our efforts are
aimed at creating better products that touch all of our lives and improve the
world in which we live. The color and fabric of your clothes, the chair you're
sitting on, clean drinking water, fresh food, medicines that enable you to
maintain an active and healthy life - all these things and more benefit from
chemistry, which is making our lives better, healthier and safer.

Responsible Care(R)

The company also takes seriously its commitment to Responsible Care(R), the
industry's global initiative to prevent accidents, injuries or harm to the
environment. As an American Chemistry Council (ACC) member, Arch demonstrates
Good Chemistry at Work through its commitment to environmental, health and
safety practices and by communicating to the public about our progress towards
continuous performance improvement.

Arch has embarked on an ambitious initiative we call The Goal is Zero(TM). What
this means is that from research and development to manufacturing, distribution,
transportation, use and disposal, we feel it is our responsibility to ensure
that every stage of a chemical's life is incident-free. For us that means no
accidents, no injuries - absolutely no situations that could bring harm to
people or the environment.

The idea that health, safety and environmental protection are an integral part
of every product's life cycle - from manufacture, marketing and distribution to
use, recycling and disposal - is known in our industry as Product Stewardship.
Arch has put in place a 12-component program which offers assistance to
customers and communities as to the proper handling, use, transport, recycling
and eventual disposal of our products.

Committed to our customers

We are committed to growing with our customers. Leveraging our leadership
positions in each of our core business segments, we expect to enhance our
ability to serve customers by investing in technology, placing a strong emphasis
on service offerings, developing new products and bringing them to market,
expanding our geographic reach, making the right alliances, and acquiring
complementary businesses.

We also continue to pursue significant productivity and cost improvement
initiatives by optimizing efficiencies, synergies and excellence in Arch's
common activities. In addition to a shared information technology
infrastructure, Arch places a companywide focus on supply chain management and
improvement, e-business solutions and chemical manufacturing technology and
operations.

I encourage you to become familiar with our capabilities outlined in this
brochure, and to let us know how we can serve your specialty chemical needs.

Sincerely,


/s/ Michael E. Campbell

Chairman, President and CEO


Arch At A Glance

                                                            [MAP]


[PHOTO]

Microelectronic Materials

Advanced chemistry and services for semiconductor manufacturers, permitting them
to offer businesses and consumers leading-edge products and capabilities. Our
products and services include photoresists, polyimides, formulated products,
thin film systems, chemical management services, and a joint venture with Wacker
Silicones Corporation for chemical mechanical planarization (CMP).

[PHOTO]

HTH Water Products

Products and related equipment and services to provide people with clean, safe
water. Our products include HTH(R) branded consumer pool chemicals and chemicals
and feeder technology for commercial pools, drinking water and industrial
applications.

[MAP APPEARS HERE]

[PICTURE APPEARS HERE]

Treatment Products

Active ingredients and related services for industrial and consumer products,
which provide biocidal and other treatment characteristics that promote
health, safety, and well being. We supply industrial biocides, wood treatment
products and services, personal care biocides and other personal care
intermediates.

[PICTURE APPEARS HERE]

Performance Products

Chemistry and services for the coatings, adhesives, sealant, and elastomer
(CASE) markets, making possible a vast array of products. Our expertise includes
specialty polyols, coatings for wood furniture and contract manufacturing.




Microelectronic Materials                         [PHOTO]         [PHOTO]

Delivering value

Delivering value to our customers is a key focus for Arch's Microelectronic
Materials segment. With stringent demands arising from today's technology
advances in semiconductor materials and manufacturing, our customer-oriented
solutions and services are tailored to meet those requirements.

Our ability to bring new products into the pipeline - advanced photoresists that
permit smaller and smaller line definitions on computer chips, new
environmentally friendly polymer removers, new high-performance abrasive
slurries to polish silicon wafer surfaces, advanced electroplating and chemical
vapor deposition (CVD) systems for new generations of semiconductors - is an
important differentiator for our customers, who are also on the leading edge of
technology. They rely on us to not just optimize the same old materials but to
provide new enabling processes with brand-new molecules.

Our product line

Arch's materials are essential for creating integrated circuits and chips for
advanced electronics. Arch manufactures and supplies a wide range of products
and services to semiconductor manufacturers and to flat display manufacturers
throughout the world.

Photoresists

Arch is the leading supplier of advanced photoresists in Europe and the second
largest supplier in North America. Photoresists are chemicals used to create the
circuit pattern on computer chips. Our photoresist innovation, called TIS
2000(TM), is a unique, advanced dual wavelength system surpassing any technology
currently available.

Polyimides

Arch's portfolio of photosensitive polyimide buffer coats extends the
reliability of computer chips by protecting them from harsh environmental
dangers. Our Durimide(TM) 9000 aqueous developable positive-tone buffer coat
material is recognized worldwide for its exceptional mechanical properties
combined with superior lithographic performance and the environmental benefits
of aqueous technology.

Thin film systems

Thin film systems are chemicals and equipment used to build layers onto computer
chips and to impart different electrical characteristics. Arch provides high-
purity dielectric and metalization precursors, dopants, and halogen sources used
in the manufacturing of semiconductor devices, as well as delivery systems for
these chemicals.

Chemical management services (CMS)

Arch pioneered and is the global market leader in the provision of CMS to
semiconductor manufacturers. Our teams of on-site chemical experts provide
services that span the total chemical life cycle from material sourcing, quality
assurance and analytical sampling to chemical recycling and waste disposal.


[Photo Caption]

Pictured right: Arch's advanced deep ultraviolet photoresist test center
supplies the world's leading semiconductor manufacturers with high-value
products. [] Pictured above, left to right, are just some of the applications
benefiting from today's advanced microelectronic circuits, including digital
camera displays, broadband video to the desktop, personal digital organizers,
consumer electronics, and cellular telephones. Far top right: Arch's
state-of-the art metrology lab.


[PHOTO]              [PHOTO]                [PHOTO]                [PHOTO]


Formulated products

Arch provides a wide range of developers, strippers and cleaners to the
semiconductor manufacturing market. Developers are chemicals used to develop the
exposed photoresist pattern. Strippers and sidewall residue cleaners are used to
remove excess photoresists and residues after the etching stage of wafer
production. Arch's value-added formulated products are custom "blended"
specialty process chemicals that provide functional importance to our customers'
processes. These products include buffered hydrofluoric acid and mixed acid,
both used in critical etching steps of wafer production.

Chemical mechanical planarization (CMP)

Planar Solutions, LLC, a joint venture with Wacker Silicones, develops,
manufactures and markets CMP slurries worldwide. These slurry materials are used
to polish wafers, a necessary step in providing a smooth surface for the next
layer of circuitry in the manufacture of advanced computer chips. In addition to
providing CMP slurries for the mainstay silicon and aluminum wafer markets, Arch
has expertise in the new copper slurry technology.

                                    [PHOTO]


HTH Water Products                                 [PHOTO]        [PHOTO]



Sparkling. Pure. Healthy. Arch Chemicals is a world leader in the manufacture
and sale of chemicals for sanitization and recreational use of residential and
commercial pool water and the purification of municipal drinking water. We are
the world's largest producer of calcium hypochlorite, the leading dry sanitizer
for swimming pools, and our popular brands HTH(R), Sock-It(R), Super Sock-It(R),
Duration(R), Pulsar(R) and Pace(R) are recognized throughout the world.

Innovation in water chemistry

A testament to our innovation in water chemistry is the pool shock treatment
category, which we created single-handedly through our innovative J3(R)
technology. A shock treatment is a quick blast of concentrated chlorine at a
higher-than-normal dosage (5-10 parts per million) to prevent as well as correct
most common pool problems. Our Sock-It(R) and Super Sock-It(R) products offer
the highest level of free available chlorine in the category, making them ideal
for "shocking" a stressed pool back into sound health.

The 21st century provides more opportunity for our Water Products business, and
we're moving to capture the advantages our research, experience and brand
position provide.

Commercial applications

Already a leader in treating residential swimming pool water, Arch Chemicals is
on track to grow sales in the huge commercial swimming pool market through our
patented Pulsar(R) feeder systems. Designed to work optimally with our Pulsar(R)
briquettes, which contain a patented scale inhibitor, there is a substantially
large installed base of Pulsar(R) feeders in commercial swimming pools in North
America and Europe. We are further expanding our offering of feeding equipment
by introducing additional institutional versions of Pulsar(R) feeding systems
for smaller hotel and motel pools and for large water parks.

                                    [PHOTO]


[PHOTO]               [PHOTO]              [PHOTO]                [PHOTO]


Proven effective as a sanitizing agent in a wide variety of applications, our
HTH(R) dry chlorinator is also a safe, reliable and cost-effective sanitizer in
industrial plant operations, such as meat and poultry processing, pulp, paper
and textile bleaching and for treating beverage and plant water supplies. For
example, solutions of HTH(R) dry chlorinator provide breweries with a proven
disinfectant that helps prevent bacterial growth while preserving the pure,
fresh taste of the finished product.

HTH(R) is sold in more than 100 countries, and is manufactured in production
facilities in the United States, Brazil and the Republic of South Africa.

Safe, clean water

We believe that our simple, reliable feeders and proven sanitizing chemicals
also provide the keys to unlocking another growth market - drinking water
sanitization in smaller municipalities and in developing nations where
communities are either entirely without protection of chlorination or are served
by obsolete, worn-out or inadequate gas chlorination equipment.

Dry chlorination can offer a solution where budgets do not permit the
installation or replacement of costly gas equipment to provide water sources
with needed protection. The need for potable water around the world has been
documented by the World Health Organization, which attributes 10,000 deaths a
day to waterborne illnesses.

As we continue to innovate, one thing will never change - our focus on our
customers, service and superior products. Our customers, whether residential
pool owners or commercial businesses, rely on Arch to provide an innovative
solution that is safe, reliable, easy to maintain and cost-effective.

                                                                         [PHOTO]


[Photo Caption]

Pictured at left and above:  Arch's HTH(R) water products include the leading
dry sanitizer for residential swimming pools. [] Pictured at top, left to right,
are other applications for the company's innovative water treatment products,
including municipal water treatment, commercial and institutional swimming
pools, water parks, industrial water treatment, agricultural use, and the
provision of safe drinking water in emergencies and in developing countries.


Treatment Products                              [PHOTO]         [PHOTO]

Promoting health, safety and well being through our active ingredients for
industrial and consumer products is the focus of our Treatment Products segment.

As a full-service, global supplier of biocide actives, wood protection products
and services, and personal care products, Arch has extensive experience in a
variety of industries and applications. Moreover, if a customer has an
application we haven't yet addressed, our application specialists work with them
to solve it.

Our portfolio includes industrial biocides, wood treatment products and
services, and personal care biocides and other personal care intermediates.

Wood protection

Arch is a global market leader in wood treatment, with operations worldwide in
the Americas, Europe and Australasia. Our leading brands of preservative- and
fire retardant-treated woods - Wolmanized(R), Thompsonized(R), Tanalised(R) and
Dricon(R) - can be found in home improvement and construction supply stores
around the world. We also provide antisapstain treatment products, such as the
Antiblu(R) product line, for temporary protection against discoloration of wood
caused by fungi. From leisure and landscaping projects to long-lasting utility
poles and marina docks and pilings, our wood treatment products stand the test
of time. It's an area in which we have a

                                    [PHOTO]



[PHOTO]             [PHOTO]              [PHOTO]               [PHOTO]

long track record of product and marketing innovation, such as our development
of multifunctional products that combine wood preservation and water repellent
characteristics.

Industrial biocides

Arch's biocide products have been improving people's lives for over 40 years. A
global supplier, we offer a broad range of actives for a variety of industries
and applications, including mildew-resistant architectural paints and coatings,
lubricants and coolants for metalworking operations, and adhesives for flooring
and wall coverings. Arch is also leading the way in developing new,
environmentally friendly marine antifouling coatings. We're helping to keep boat
bottoms and the environment much cleaner by providing environmentally preferable
Arch biocides that replace tributyl tins in marine paint applications - while
helping to improve our customers' bottom line.

Personal care products

Our zinc Omadine(R) biocide has long put the "anti" into antidandruff shampoo.
In late 2000, we expanded our personal care product offerings by acquiring the
Brooks product line and formulation skills. This business, which is focused on
the amalgamation of technology and marketing, is at the leading edge of
cosmetics, providing the latest in what we refer to as Cosmetic Ingredients &
Ideas(R).

Our products include specialty biopolymers, proteins, botanicals and liposomes.
Standard products include lanolin, lanolin derivatives, emulsifiers, and protein
products. Our customers include global cosmetics and toiletries companies.

Technical and customer service

At Arch, we provide value to our customers by offering high-performance products
coupled with excellent technical and customer service. Our technical service and
new product development departments in each of our businesses assist customers
with everything from field testing to in-depth toxicology studies.

Arch also has an experienced team dedicated to dealing with the many regulatory
agencies worldwide. We can assist customers with the registration of new
products, as well as a wide array of other regulatory services - including
Environmental Protection Agency (EPA) and Food and Drug Administration (FDA)
issues.

We are especially committed to helping our customers find safe and effective
solutions to their treatment requirements. We follow American Chemistry Council
Responsible Care(R) objectives and have a Product Stewardship program designed
to ensure cradle-to-grave guidance.

[PHOTO]



[Photo Caption]

Pictured at left:  A lifetime of protection is behind Arch's environmentally
sound wood treatment products for backyard decking and garden furniture. []
Pictured above, left to right, are Wolmanized(R) pressure-treated lumber and
other applications for the company's wide range of treatment products, including
treatment for dock pilings, industrial biocides for metalworking, ship
antifouling biocides, antidandruff active ingredients, and personal care
intermediates for cosmetics.


Performance Products                              [PHOTO]        [PHOTO]


Arch's Performance Products segment encompasses a variety of specialties,
including technology and services for the coatings, adhesives, sealant and
elastomer (CASE) markets.

Performance urethanes and organics

For nearly 40 years, our performance urethanes business has built a leadership
position in supplying performance polyols to the CASE markets. From off-the-
shelf products to polyols customized for unique customer requirements, our
polyether polyols are proven winners in everything from urethane coatings for
gymnasium floors to in-line skate wheels, packaging adhesives and construction
sealants.

[PHOTO]

Arch is expanding this business worldwide, with particular emphasis on South
America and Asia, and we're continuously adding new products to assist our
customers in meeting the performance demands of a growing industry. We also
offer glycols and glycol ethers for coolant and solvent applications in addition
to uses in personal care. With manufacturing facilities in Brandenburg,
Kentucky, and Santa Rita, Venezuela, we provide our customers with innovative
products and solutions to fit their needs on a worldwide basis.

Coatings

Arch is a market leader in wood coatings technology, offering total coating
solutions from stains to top coats. And we intend to expand our strong position
in Europe to new frontiers by applying the ingenuity and skills for which we are
known to create growth, value and opportunity for our customers and our
suppliers.

Arch's industrial furniture coatings can be found on everything from high-end
dining room and bedroom sets to kitchen and bathroom cabinets and sailboat
interiors. Italian suppliers have



[Photo Caption]

Pictured above and right: Developing coating products and processes that protect
and enhance the natural beauty of wood while preserving the environment is the
focus of Arch's coatings business. Pictured at top, left to right, are
applications for the company's wide range of Performance Products, including
elastomers for castable products such as bowling balls, adhesives for food
packaging, tire-fill elastomers, high-gloss coatings for automotive dash
paneling, ultraviolet curing process, color lacquers and stains for picture
frames.


[PHOTO]            [PHOTO]              [PHOTO]            [PHOTO]

long been recognized as technological leaders in stains and lacquers for wood,
so it is not surprising that our primary location for this business is in
Pianoro, Italy.

Our specialty wood coatings are designed to provide innovative solutions for a
variety of application systems, ranging from traditional techniques to the
latest developments and from classic furniture finishes to special effects for
picture frames.

In addition to our operations in Italy, we also have manufacturing locations in
France and Spain, and we have strong positions in the United Kingdom and Far
Eastern markets, supported by distribution/technical service centers in
Yorkshire, England, and Singapore.

Sayerlack(R) brand

Our Sayerlack(R) brand name is well recognized in Europe, and we provide both
technical support and training to our customers under the Sayerlack(R) umbrella,
which provides products for both industrial use and the do-it-yourself markets.
Arch's coatings business presents an exciting growth opportunity for expansion
into the United States and Asia, and we have made this a key focus for
development. Our coatings expertise makes Arch one of the leaders in
transitioning customers to higher-technology products that replace solvent-based
chemistries with water-based and reactive systems.

                                    [PHOTO]



Arch's Worldwide Operations

From Italy to Brazil, from Asia to North America. Wherever our customers do
business, Arch Chemicals is there - thinking globally, acting locally. Call us
or visit us on the web. Let's get some chemistry going!

Corporate Headquarters

Arch Chemicals, Inc.
501 Merritt 7
P.O. Box 5204
Norwalk, CT 06856-5204
Tel: (203) 229-2900

Principal Operations
Microelectronic Materials

Mesa, Arizona
East Providence, Rhode Island
North Kingston, Rhode Island
Zwijndrecht, Belgium

HTH Water Products

Kennesaw, Georgia (Headquarters)
Charleston, Tennessee
Igarassu, Brazil (Joint Venture)
Kempton Park, South Africa (Joint Venture)

Treatment Products

Conley, Georgia (R&D Center - Wood Protection)
Valparaiso, Indiana (Wood Protection)
Knottingley, England (R&D Center - Wood Protection)
Sydney, Australia (Joint Venture - Wood Protection)
Santiago, Chile (Joint Venture - Wood Protection)
St. Michaels, South Africa (Joint Venture - Wood Protection)
Cheshire, Connecticut (R&D - Biocides)
Rochester, New York (Biocides)
Swords, Ireland (Biocides)
South Plainfield, New Jersey (Personal Care Intermediates)

Performance Products

Brandenburg, Kentucky (Urethanes and Organics)
Salto, Brazil (Urethanes and Organics)
Santa Rita, Venezuela (Urethanes and Organics)
Mariano Comense, Italy (Coatings)
Les Mureaux, France (Coatings)
Pianoro, Italy (Coatings)

Web Sites
Corporate
www.archchemicals.com

Microelectronic Materials
www.archmicro.com

HTH Water Products
www.archwaterworks.com

Treatment Products

Biocides www.archbiocides.com
Wood Protection www.wolmanizedwood.com
Timber Protection www.archtp.com
Dricon(R) Fire Retardant www.dricon.com

Performance Products

Urethanes and Organics www.archurethanes.com
Coatings - Italy (English) www.archcoatings.com
Coatings - Italy (Italian) www.sayerlack.it

All product names used in this booklet are registered or registered pending
trademarks of Arch Chemicals, Inc. Responsible Care(R) is a registered trademark
of the American Chemistry Council.


                    Arch Chemicals, Inc., headquartered in Norwalk, Conn., is a
                    global specialty chemicals company with leadership positions
                    in four key segments - Microelectronic Materials, HTH Water
                    Products, Treatment Products and Performance Products. With
                    a global workforce and manufacturing facilities in North
                    America, South America, Europe, Asia and Africa, we look
                    forward to serving your needs with our innovative solutions.


                  [LOGO OF ARCH CHEMICALS, INC. APPEARS HERE]