AMERICAN ORIENTAL BIOENGINEERING INC. OPTIONS TO TRADE ON CHICAGO BOARD OPTIONS EXCHANGE

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American Oriental Bioengineering Inc. (AMEX: AOB), an emerging Chinese company that produces and distributes a broad range of pharmaceutical and nutraceutical products, announced today that on Thursday, Dec. 1, 2005, options on the company's common stock began trading on the Chicago Board Options Exchange ("CBOE"). The CBOE is the world's largest options marketplace. American Oriental Bioengineering options trade on the January expiration cycle with exercise limits set at 25,000 contracts on each side.

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