C-bridge and Excelon complete Merger.

Business/Technology Editors

BOSTON & BURLINGTON, Mass.--(BUSINESS WIRE)--Sept. 19, 2001

C-bridge (Nasdaq: CBIS), a leading e-Enterprise consulting and services provider, and eXcelon Corporation (Nasdaq: EXLN), an award-winning XML-based platform provider, today announced the successful completion of their merger. The combined company will do business as eXcelon Corporation with headquarters in Burlington, Massachusetts and offices in the U.S., Canada, Europe and the Asia-Pacific region serving over three thousand customers worldwide. eXcelon will continue to trade under the Nasdaq symbol "EXLN."

Joe Bellini, chief executive officer of the new eXcelon, said the merger positions the company to meet the heightened demands for solutions that are designed to increase return on investment. "This merger obviously marks a significant milestone in the histories of our two companies," said Bellini. "We're now able to provide our shared customers and the market with exceptional industry expertise combined with open, strategic technology that can be deployed rapidly."

Bellini added, "We will now focus on the task of implementing our integration plan. Our goal is to ensure that we deliver benefits for customers, employees and shareholders."

Former eXcelon Corp. chairman and CEO, Robert Goldman, is the chairman of the board of the new company. Mark Cosway is the president of the new company and Richard C. Putz is eXcelon's chief strategy and marketing officer. Satish Maripuri, former president and chief operating officer of eXcelon, continues as the company's chief operating officer and Lacey Brandt continues to serve as eXcelon's chief financial officer.

The last day of trading on the Nasdaq Stock Market for C-bridge was September 19, 2001. Under the terms of the merger, each share of C-bridge common stock will be exchanged for 1.2517 shares of eXcelon common stock and outstanding options to purchase shares of C-bridge common stock will be converted to options to purchase shares of eXcelon common stock at the same ratio. Based on the number of shares and options outstanding today, post-merger, each company's stockholders will own approximately one-half of the combined company on a fully diluted basis.

Conference Call Scheduled

eXcelon will discuss the implementation of its integration plan and restructuring initiatives in connection with the merger on Monday, September 24th at 5:30 p.m. To access the conference call, please dial 800-500-0177 (Domestic) or 719-457-2679 (International). The conference ID number for this call is 746243. A Webcast of the call can also be accessed via the Investor Relations section of eXcelon's Web site (www.exceloncorp.com). A replay of the conference call will be available for seven (7) days following the call by dialing 888-203-1112 (Domestic) and 719-457-0820 (International), and using the passcode 746243.

About eXcelon

eXcelon is a leading provider of value-driven, industry solutions and technology that enable effective business processes in ever-changing marketplaces. eXcelon solutions are enabled by our award-winning XML technology, delivered on a service-based architecture and supported by deep business expertise, as well as world class executive and technical education. The products and solutions eXcelon designs, develops and markets include a wide spectrum of industry-specific business process solutions; as well as Stylus Studio, the internationally praised XML developers' toolkit; XIS, the award winning Extensible Information Server; Business Process Manager, the industry's leading high-performance server; and ObjectStore, a leading data management performance product. Headquartered in Burlington, MA, eXcelon markets its solutions worldwide through value-added resellers, system integrators, consulting firms, OEM licensees and direct sales channels.

eXcelon is traded on The Nasdaq Stock Market(SM) under the symbol EXLN. For more information, please visit the eXcelon Web site at http://www.exceloncorp.com.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995

Statements in this press release that do not relate to historical facts, including statements concerning the combined business operations of eXcelon and C-bridge, future expectations relating to the combined companies, plans, and prospects of eXcelon following the merger with C-bridge, are forward-looking statements. Such statements are not guarantees of future performance, and are subject to substantial risks and uncertainties and involve assumptions that could cause the future results of eXcelon to differ materially from those expressed in any forward-looking statements. eXcelon disclaims any intent or obligation to update publicly any forward-looking statements whether in response to new information, future events or otherwise.

Important factors that could cause our actual results to differ from these forward-looking statements include the risk that the businesses of eXcelon and C-bridge will not be integrated successfully; costs related to the merger of eXcelon and C-bridge; the possibility that the recent restructuring of our business operations, as well as any additional restructuring initiatives, may not produce improvements in our operating results; the risk that our common stock may not continue to trade on the Nasdaq National Market; market demand for XML-based products; the risk that our revenues will not grow rapidly enough to offset increased expenditures that we are incurring to develop and market our new XML-based products; the fact that a significant portion of the combined company's revenues to date have been derived from sales of eXcelon's Object Design data management products, the market for which is stable or declining; the profitability of our Internet professional services contracts; our ability to retain existing Internet professional services clients and attract new clients; the possibility that we may be unable to keep pace with the rapid technological change and intense competition that characterize our markets; the occurrence of any failure of the Internet; the continued improvement of security on the Internet; general economic and industry conditions; factors described under the heading "Risk Factors" in our Registration Statement on Form S-4 relating to the merger, as filed with the Securities and Exchange Commission on August 17, 2001; and other factors described under the heading "Certain Factors that May Affect Future Results" in our Annual Report on Form 10-K for the year ended December 31, 2000, as amended, as filed with the Securities and Exchange Commission as well as factors described under the heading "Risk Factors" in C-bridge's Annual Report on Form 10-K for the year ended December 31, 2000, as amended, as filed with the Securities and Exchange Commission.

NOTE: C-bridge, Object Design and ObjectStore are registered trademarks of eXcelon Corporation. eXcelon, EXLN, Xpress, eXcelon Portal Server, eXcelon Integration Server, eXcelon eSolutions, Stylus, Cache-Forward, and Javlin are trademarks of eXcelon Corporation. All other trademarks are the property of their respective owners.