SITEK Joins Commerce One MarketSite; Engineering and Manufacturing Semiconductor Solutions featured on Business-to-Business Internet Portal

Business Wire, March 10, 2000

Business Editors

TEMPE, Ariz.--(BUSINESS WIRE)--March 10, 2000

SITEK Inc. (OTCBB:SITK), a provider of engineering and manufacturing solutions to the semiconductor industry, today announced it has become a featured supplier on Commerce One MarketSite(TM) Global Trading Portal, a major U.S. portal on the internet for exchanging goods and services among businesses worldwide. Through the internet portal, current and prospective SITEK customers will be able to quickly access on-line supplier catalogs, check availability and submit orders for goods and services.

"Commerce One gives SITEK Inc. another great opportunity to service customers quickly and conveniently," said Ron Colvin, Vice President and Director of Sales and Marketing for SITEK. "This partnership demonstrates our commitment to our customers, and to technology."

Commerce One MarketSite is designed to enable trading partners using diverse buying and selling applications to transact business over the Internet without expensive point-to-point integration. By integrating once to MarketSite, a supplier can offer its customers real-time pricing and availability information, as well as the ability to place and track orders. Moreover, Commerce One's unique "publish once" supplier content model allows suppliers to publish or update their product content once in MarketSite, instead of having to customize that content for every buying organization.

"We are pleased to add SITEK to the rapidly growing number of suppliers transacting business through Commerce One MarketSite," said Roy Satterthwaite, vice president of Commerce One MarketSite. "By making semiconductor equipment and services from SITEK readily available to all organizations on MarketSite, we believe that SITEK will provide its customers with the opportunity to conduct business more efficiently and to reap the benefits of global B2B e-commerce."

Commerce One MarketSite Global Trading Portal: The Industry's Leading Electronic Marketplace 6 Commerce One MarketSite Global Trading Portal, a U.S. portal for exchanging goods and services among businesses worldwide, has added new features and services including hosted trading applications, auction services, Trade Zones for interaction with other e-marketplaces and advertising capabilities. Commerce One MarketSite has supplied transaction, content management and business services to buyers and suppliers since March 1998 and is available at http://www.marketsite.net. Commerce One MarketSite is operated by Commerce One (Nasdaq: CMRC), a provider of global e-commerce solutions for business. Commerce One is located in Walnut Creek, CA, and can be reached by phone at (800) 308-3838 or (925) 941-6000 or via the Internet at http://www.commerceone.com/.> About SITEK Incorporated

SITEK through its operating subsidiaries and divisions, specializes in providing technical and manufacturing solutions to the semiconductor electronics industry. The Company's broad range of products and services include the design and manufacture of next-generation semiconductor equipment including CMP systems, diffusion and LPCVD systems, ultra-high purity gas delivery systems, and rapid batch magnetic anneal systems. SITEK also specializes in the sale of pre-owned semiconductor equipment and advanced manufacturing system automation. The Company further provides value-added processing of silicon wafers and semiconductor engineering and technical services. For more information please call (602) 431-0444 or visit SITEK's web site at www.SITEKgroup.com.

This news release may include statements that constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Please be cautioned that any such forward-looking statements are not guarantees of future performance and involve significant risks and uncertainties, and that actual results may vary materially from those in the forward-looking statements as a result of any number of factors, including but not limited to, actual market growth, the size and timing of customer orders, new or increased competition, changes in market demand for Sitek and Commerce One products, the Companies' future ability to meet market demands, and the future efficacy of the Companies' products compared to other competing products. These factors and others could cause operating results to vary significantly from those in prior periods, and those projected in forward-looking statements. Additional information with respect to these factors that could materially affect the Companies and their independent operations are included in certain forms the Companies file with the Securities and Exchange Commission. Sitek has provided the website address for Commerce One for the readers' convenience. Sitek has done no independent investigation of the information provided on the third party website and disclaims the information provided therein.

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.