19 Companies Participate in Commerce One Global Trading Web Meeting in Zurich; GTW Forming Plans for Group Bylaws and Business Strategies.

Business Editors/High-tech Writers

PLEASANTON, Calif.--(BUSINESS WIRE)--May 23, 2000

Commerce One, Inc. (Nasdaq:CMRC), the leader in global e-commerce solutions for business, announced today that representatives of 19 Commerce One Global Trading Web (GTW) member companies met last week in Zurich, Switzerland to discuss the policies, programs and strategic direction of the GTW. The meeting was sponsored by SwissCom, a GTW member.

The three-day council meeting, held May 17-19, was one of a series of meetings being held around the globe to discuss group bylaws and strategies. The consensus of the group was to move forward on incorporating the GTW. Moreover, substantial progress was made in developing a set of bylaws to govern the organization. Additionally, committees were created to develop policies, technical standards and infrastructure. The next meeting of the GTW was scheduled for early September, sponsored by NTT Communications in Japan.

The regular GTW meetings are intended to define the policies and processes that will make international Internet commerce effective. By establishing guidelines for trade agreements, including service level agreements, interoperability agreements, revenue sharing agreements and content syndication agreements, and e-commerce services such as directories, trading partner profiles and master catalogs, it is anticipated that the GTW will help revolutionize world trade by eliminating the cost and time of today's paper, telephone and fax based trading processes.

"We believe that the Commerce One Global Trading Web represents a first-of-its kind plan to truly develop guidelines and processes for seamless global e-commerce," said Carl Falk, senior vice president of Commerce One's Global Trading Web. "This meeting was another step towards achieving our goal to be the world's most open, dynamic and efficient global trading network."

Attendees of the GTW meeting representing e-marketplaces based on the Commerce One MarketSite Portal Solution included: Artikos (Latin America), British Telecom (United Kingdom), Cable and Wireless Optus (Australia), Citigroup, Commerce One, Com2 Business (Taiwan), Concert (AT&T and BT joint venture), Covisint (automotive industry), Deutsche Telekcom (Germany), Endesa (Spain), Hong Kong Consortium, Metique (metals industry), NTT Communications (Japan), PeopleSoft, SESAMi.com (Singapore), Swisscom (Switzerland), TD Bank (Canada), and Tradecom (Portugal). A representative of PricewaterhouseCoopers, a Commerce One global technology implementation partner, also participated in the event.

Comprised of many open e-marketplaces running on the Commerce One MarketSite Portal Solution, the Global Trading Web provides unprecedented economies of scale for buying organizations, suppliers, and service providers worldwide. Each global trading portal is independently owned and operated by a leading market maker in a region or industry - resulting in the greatest choice for all trading partners. Currently, Commerce One and over 77 partners develop and operate regional and vertical portals worldwide, including exchanges for the automotive, aerospace, energy and telecommunications industries.

About Commerce One

Commerce One (Nasdaq:CMRC) is the leader in global e-commerce solutions for business. Through its products, portals and services, Commerce One creates access to worldwide markets, allowing anyone to buy from anyone, anytime, anywhere. The Commerce One Global Trading Web is the world's largest business-to-business trading community. Comprised of many e-marketplaces, the Global Trading Web provides unprecedented economies of scale for buying organizations, suppliers, and service providers worldwide. Commerce One is located in Pleasanton, Calif., and can be reached by phone at 800/308-3838 or 925/520-6000 or via the Internet at http://www.commercone.com.

Forward Looking Statements

Certain statements made in this press release by Commerce One are not historical facts but are "forward looking statements" and may involve risks and uncertainties which could cause actual future results to differ materially and adversely from those anticipated by such statements. Included among the factors that could affect Commerce One's performance are: domestic and international general economic conditions; fluctuations in operating results; its ability to effectively manage future growth, to retain and efficiently integrate its executive management team, and to identify, hire, train and retain, in a highly competitive market, individuals highly skilled in the Internet and its rapidly changing technology; significant revenue concentration in a limited number of clients; the lack of long-term contracts; its ability to enter into, and retain its existing, strategic relationships; market acceptance, rapid technological change, a decline in Internet usage, and intense competition in its market; its ability to effectively integrate the operational, managerial and financial aspects of future acquisitions; and its ability to obtain financing when required. For a discussion of these and other risk factors that could affect Commerce One's business, see "Risk Factors" in Commerce One's filings with the Securities and Exchange Commission, including its annual report on Form 10-K for the year ended December 31, 1999.

Note to Editors: Commerce One, Many Markets, One Source, Global Trading Web, BuySite, MarketSite, Global Trading Platform, Common Business Library, XML Development Kit, XML Commerce Connector, MarketView, and SupplyOrder are either trademarks or registered trademarks of Commerce One, Inc. All other company, product, and brand names are trademarks of their respective owners.