AIR LIQUIDE SELECTS ON-GUARD

Windrock, Inc. is pleased to announce that a purchase order has been received from Air Liquide Process Construction, Inc. for the supply of a complete Windrock On-Guard™ system to be integrated in the first quarter of 2006 on a new Dresser-Rand hydrogen booster compressor being installed at Air Liquide’s Greenfield site located near Freeport, Texas. This 3-cylinder compressor will be placed in service to boost Hydrogen pipeline pressure from 700 psig to 1,400 psig.

This Air Liquide system will utilize V-Guard and C-Guard modules (US patent 6,292,757B1) to provide advanced monitoring and diagnostics via wireless Ethernet at this remote compressor site. The On-Guard™ family of Windrock products are designed for the unique needs of reciprocating machines to better protect personnel, the environment and equipment assets while optimizing compressor efficiency and reliability.

About Air Liquide:

Air Liquide America is a wholly owned subsidiary of the Air Liquide Group with headquarters in Paris, France (AIRP.PA). Founded in 1902, Air Liquide is a world leader in industrial gases and related services. Air Liquide’s core business is to supply oxygen, nitrogen, hydrogen and many other gases and services to industry (for example: steel, oil refining, chemicals, glass, electronics, health care, food processing, metallurgy, paper and aerospace). Air Liquide has a global presence operating in more than seventy (70) countries with a continuing commitment to innovative solutions and technical leadership.

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