Spray Foam Technology by Huntsman Helps Create One of the Most Energy Efficient, Sustainable Homes in America

The Woodlands, Texas (July 1, 2010) – Huntsman Corporation (NYSE: HUN) today announced that its spray polyurethane foam (SPF) technology was used to insulate one of the most energy efficient, sustainable homes in America.

CertaSpray^_TM Closed Cell Foam Insulation from CertainTeed Corporation, which is based on Huntsman’s SPF technology, was featured in a home located in Beverly, Mass. and built by Cleantech Homes, LLC. The home is being evaluated for a LEED® Platinum Home rating, and is currently being utilized as a teaching center that showcases sustainable building techniques and design, as well as new products and construction materials used in high-performance homes.

During the construction phase, a two-pound CertaSpray foam insulation was used for the home’s interior thermal insulation. CertaSpray foam insulation was applied on the walls, roof underlay and attic to protect the home against heat, cold, air infiltration, moisture and sound.

“CertaSpray foam insulation offers outstanding energy efficiency and contributes to a healthy indoor air quality, enhanced moisture management and excellent acoustical control — all critical factors in green building projects,” said Lionel Rossignol, product manager, CertainTeed Insulation. “CertaSpray foam insulation was a natural choice for the home’s interior insulation, and we are honored to have our product in a home built by Cleantech Homes.”

In addition to thermal barrier protection, homes insulated with CertaSpray foam insulation will typically use 30 to 50 percent less energy, when compared to under-insulated homes. This can lead to a reduction in a home’s heating, ventilation and air conditioning (HVAC) systems, and an overall reduction in HVAC equipment costs in new home construction. Homeowners that use CertaSpray foam insulation can also take advantage of an existing energy tax credit of up to $1,500 under the American Recovery and Reinvestment Act.

Today, energy efficiency is at the forefront of new home construction and home retrofit projects. Architects and builders are looking for innovative ways to build more energy efficient homes, and consumers are looking for ways to reduce their energy bills. This home clearly demonstrates how consumer demand can be satisfied with innovative construction materials, including SPF,” said Monica Ntiru Karamagi, marketing manager, Huntsman Polyurethanes.

These energy saving measures, along with other features found in the home, helped contribute to its LEED Platinum Home application, meaning it will achieve the highest level within the LEED for Homes rating systems.

Developed by the U.S. Green Building Council (USGBC), the LEED rating system is a national third-party certification system that recognizes leadership in green building. LEED for Homes, launched in February 2008, measures green homebuilding performance based on numerous categories; including site selection, water efficiency, materials and resources, energy and atmosphere, indoor environmental quality, location and linkages, awareness and education, and innovation.

Beginning June 26, the home will be open to public for six months. Appointments to tour the home can be scheduled by visiting www.cleantechbuilt.net.

About Huntsman:
Huntsman is a global manufacturer and marketer of differentiated chemicals.  Its operating companies manufacture products for a variety of global industries, including chemicals, plastics, automotive, aviation, textiles, footwear, paints and coatings, construction, technology, agriculture, health care, detergent, personal care, furniture, appliances and packaging. Originally known for pioneering innovations in packaging and, later, for rapid and integrated growth in petrochemicals, Huntsman today has more than 11,000 employees and operates from multiple locations worldwide. The Company had 2009 revenues of approximately $8 billion. For more information about Huntsman, please visit the Company’s website at www.huntsman.com.

About CertainTeed:
Through the responsible development of innovative and sustainable building products, CertainTeed has helped shape the building products industry for more than 100 years. Founded in 1904 as General Roofing Manufacturing Company, the firm's slogan "Quality Made Certain, Satisfaction Guaranteed," quickly inspired the name CertainTeed. Today, CertainTeed® is North America’s leading brand of exterior and interior building products, including roofing, siding, windows, fence, decking, railing, trim, foundations, pipe, insulation, gypsum, ceilings and access covers.

A subsidiary of Saint-Gobain, the world’s largest building products company, CertainTeed and its affiliates have more than 6,000 employees and more than 65 manufacturing facilities throughout the United States and Canada. In 2009 and 2010, CertainTeed, which is headquartered in Valley Forge, Pa., was named ENERGY STAR Partner of the Year by the U.S. Environmental Protection Agency, a national award that recognizes environmentally responsible corporations. The group had total sales of approximately $3 billion in 2009. www.certainteed.com

About Cleantech Homes:
Founded in 2007, Cleantech Homes, LLC. is an educational organization that specializes in the advancement, dissemination and integration of efficient, sustainable, healthy and green building practices  Rapidly changing green building techniques and methods are a new elusive and often bewildering reality for many stakeholders in the industry, including architects, developers, the building trades, real estate professionals, educators, and building code officials. Cleantech professionals are committed to explain the complex interconnections between the various components, technologies and applications involved in sustainable, high efficiency building practices. Please visit our website www.cleantechbuilt.net.

Note to editors: LEED® is a registered trademark of U.S. Green Building Council (USGBC). CertaSpray™ is a trademark of CertainTeed Corporation. CertainTeed® is a registered trademark of CertainTeed Corporation.

Forward-Looking Statements:
Statements in this release that are not historical are forward-looking statements. These statements are based on management’s current beliefs and expectations. The forward-looking statements in this release are subject to uncertainty and changes in circumstances and involve risks and uncertainties that may affect the company’s operations, markets, products, services, prices and other factors as discussed in the Huntsman companies’ filings with the U.S. Securities and Exchange Commission. Significant risks and uncertainties may relate to, but are not limited to, financial, economic, competitive, environmental, political, legal, regulatory and technological factors.  In addition, the completion of any transactions described in this release is subject to a number of uncertainties and closing will be subject to approvals and other customary conditions. Accordingly, there can be no assurance that such transactions will be completed or that the company’s expectations will be realized. The company assumes no obligation to provide revisions to any forward-looking statements should circumstances change, except as otherwise required by applicable laws.