American Stock Exchange to Trade Options on Four Securities NEW YORK, Jan. 9 /PRNewswire/ -- The American Stock Exchange(R) (Amex(R)) will launch trading in options on Monday, January 12, 2004 on the following Nasdaq Stock Market and New York Stock Exchange listed stocks of: -- BioLase Technology, Inc. (Option Symbol: BQF/Stock Symbol: BLTI) -- Coeur D'Alene Mines Corporation (Symbol: CDE) -- Nanogen, Inc. (Option Symbol: QEM/Stock Symbol: NGEN) -- PetroChina Company Limited, American Depositary Shares (Symbol: PTR) BioLase Technology, Inc. options open with position limits of 60,000 contracts. The options will trade on the March expiration cycle. The specialist will be LaBranche Structured Products, LLC. BioLase Technology, Inc. manufactures and markets laser dental, cosmetic, aesthetic and surgical systems. Coeur D'Alene Mines Corporation options open with position limits of 75,000 contracts. The options will trade on the March expiration cycle. The specialist will be Charlton Specialist Partners LLC. Coeur D'Alene Mines Corporation, through its subsidiaries, explores, develops, operates and/or owns silver and gold mining properties and companies. Nanogen, Inc. options open with position limits of 75,000 contracts. The options will trade on the March expiration cycle. The specialist will be Susquehanna Investment Group. Nanogen, Inc. integrates advanced microelectronics and molecular biology into a platform technology with commercial applications. PetroChina Company Limited options open with position limits of 31,500 contracts. The options will trade on the March expiration cycle. The specialist will be Tanstaafl Research & Trading, LLC. PetroChina Company Limited explores, develops and produces crude oil and natural gas. The American Stock Exchange(R) (Amex(R)) is the only primary exchange that offers trading across a full range of equities, options and exchange traded funds (ETFs), including structured products and HOLDRS(SM). In addition to its role as a national equities market, the Amex is the pioneer of the ETF, responsible for bringing the first domestic product to market in 1993. Leading the industry in ETF listings, the Amex lists 124 ETFs to date. The Amex is also one of the largest options exchanges in the U.S., trading options on broad-based and sector indexes as well as domestic and foreign stocks. DATASOURCE: American Stock Exchange CONTACT: Media - Lynn Teresky of the American Stock Exchange, +1-212-306-1654, Web site: http://www.amex.com/

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