News Release

SAN LEANDRO, Calif.— December 22, 2009—Energy Recovery, Inc. (NASDAQ: ERII), a leader in the design and development of energy recovery devices for the desalination industry, today announced that on December 21, 2009, it completed the acquisition of Pump Engineering, L.L.C. based in New Boston, Michigan. Under the terms of the agreement, ERI paid the shareholders of Pump Engineering $20 million in cash plus one million shares of ERI Common Stock. Read More

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