Praxair to Supply Hydrogen to Hemlock Semiconductor L.L.C.

Praxair to Supply Hydrogen to Hemlock Semiconductor L.L.C.

July 07, 2011

DANBURY, Conn., July 7, 2011 — Praxair, Inc. (NYSE: PX) has signed a multi-year contract with Hemlock Semiconductor, L.L.C. to supply high-purity hydrogen to Hemlock Semiconductor, L.L.C.’s new $1.2 billion polysilicon manufacturing facility under construction in Clarksville, Tennessee. Praxair will build and operate an on-site hydrogen generating facility and supply liquid hydrogen by truck. Plant start-up is scheduled for 2012.

“Praxair’s relationship with Hemlock Semiconductor, L.L.C. goes back 35 years,” said Anne Roby, president of Praxair Electronics. “We look forward to continuing to grow with Hemlock Semiconductor, L.L.C. as it meets the growing demand for photovoltaics and semiconductors.” Praxair also supplies nitrogen and hydrogen to Hemlock Semiconductor L.L.C.’s polysilicon facility in Hemlock, Michigan. “Our contract with Praxair will provide a long-term, economical and reliable source of hydrogen for our Clarksville facility,” offered Stuart Bolland, Americas direct procurement manager for Dow Corning.

About Praxair Electronics
As an experienced supplier to the polysilicon and photovoltaic industries, Praxair Electronics offers a complete portfolio of onsite and merchant gases, process gases, gas handling and distribution systems, and gas and chemical management services to help customers operate efficiently and reliably. Praxair Electronics also provides the global semiconductor industry with process consumables, including a full line of materials; sputtering targets; CMP pads; chamber components including electrostatic chucks; and spare-parts and logistics services. More information on Praxair Electronics is available on the Internet at: www.praxair.com/electronics.

About Praxair
Praxair is the largest industrial gases company in North and South America, and one of the largest worldwide, with 2010 sales of $10 billion. Praxair products, services and technologies bring productivity and environmental benefits to a wide variety of industries, including aerospace, chemicals, food and beverage, electronics, energy, healthcare, manufacturing, metals and others. More information on Praxair is available on the Internet at www.praxair.com.

Contact
Media Contact:
Susan Szita Gore

Email: susan_szita-gore@praxair.com

Phone: 1-203-837-2311

Investor Relations Contact:
Kelcey Hoyt

Email: kelcey_hoyt@praxair.com

Phone: 1-203-837-2118