Reliability Improvements Unlock Additional Capacity Of Crude Acrylic Acid At Deer Park For Dow’s Performance Monomers Business

MIDLAND, Mich. — November 8, 2011 — Today the Performance Monomers business of The Dow Chemical
Company (NYSE: DOW) announces an incremental expansion strategy has unlocked an additional 15% of
Crude Acrylic Acid (CAA) capacity at its Deer Park, Texas facility. This capacity increase is a
result of various improvement projects implemented in the CAA Oxidation facility. These projects
not only increased capacity, but enhanced process safety and improved technology and reliability.
In return, our global strategic customers can now benefit from a more consistent and reliable

David Mongrue, Global Business Manufacturing Director for Performance Monomers states, “Dow
is committed to expanding and continuously improving our CAA capacity and capability through a
series of reliability and improvement projects across our global manufacturing asset footprint. Dow
is not only growing with our customers, but helping our customers to grow and providing solutions
that help meet new market demands.”

Dow is the world’s largest producer of Acrylic, Methacrylic and Specialty Monomers, with a
robust portfolio of acrylic monomers. Dow’s Performance Monomers business provides selection,
quality and consistency for a wide range of applications. Acrylic monomers from Dow are used
primarily in coatings, inks, textiles, home and personal care and energy markets.

Posted on November 8, 2011

Source: The Dow Chemical Co.