Critical Path Announces Addition of NEC to Joint Venture in Japan.

Business Editors/High-Tech Writers

SAN FRANCISCO--(BUSINESS WIRE)--June 29, 2000

NEC Joins Critical Path, Mitsui & Co., Ltd., and NTT Communications

Corporation to Provide Advanced Internet Messaging Solutions

to the Rapidly Emerging Japanese Internet Market

Critical Path Inc. (Nasdaq:CPTH), the dominant global provider of business-to-business Internet messaging and collaboration solutions, today announced that NEC Corporation (Nasdaq:NIPNY) has become the newest partner in Critical Path Pacific, a joint venture established by Critical Path, Mitsui & Co., Ltd and NTT Communications Corporation (NTT Com), to deliver advanced Internet messaging solutions to Japanese businesses.

Tokyo-based Critical Path Pacific has gained momentum leveraging the strengths and market dominance of all of the partners involved. Critical Path Pacific will leverage NEC's strong Internet presence in the exploding Japanese market by marketing messaging and collaboration solutions to the established customer base of their leading ISP in Japan, BigGlobe. Critical Path Pacific will draw on Mitsui's extensive partnerships in Japan and throughout Asia to promote Critical Path Pacific's advanced Internet based, in-language messaging solutions. As Japan's leading long distance international telecommunications arm of NTT Group, NTT Com will host Critical Path Pacific's advanced Internet messaging services in its Data Centers. NTT Com will provide the technical backbone required to bring scalable and reliable Internet services to the Japanese market. The new venture has already won a number of blue chip customers including Nikkei, e-Carnet and Fujitsu Parex.

"Leveraging NEC's established presence in Japan greatly extends Critical Path Pacific's ability to deliver advanced messaging solutions to businesses in Japan and throughout Asia," said Dave Thatcher, Critical Path's president. "The collective power and reach of market leaders such as Mitsui, NTT Com, NEC and Critical Path positions Critical Path Pacific at the forefront of the rapidly emerging Asian market."

About Critical Path, Inc.

Critical Path, Inc. (Nasdaq:CPTH) is the dominant global provider of complete end-to-end Internet messaging and collaboration solutions for wireless, Internet-centric, telecommunication and corporate businesses. Through its allsourcing strategy, Critical Path is the only advanced messaging provider to offer businesses the flexibility to outsource, midsource or insource all or part of their messaging and collaboration applications. Critical Path has built an industry-leading global infrastructure with data centers connected to key Internet exchange points. Critical Path's technology currently reaches more than 100 million end-users through its customer relationships including more than 25 million wireless devices. Critical Path provides reliable, secure, and scalable e-mail and a flexible suite of enhanced messaging services to partners such as E*TRADE, CompuServe, Network Solutions, U S West, Sprint, France Telecom, British Telecommunications, and ICQ. Critical Path is headquartered in San Francisco, with offices in locations nationwide and in Germany, England, Ireland, France, Italy, Switzerland, Japan, Brazil and Argentina. More information on Critical Path can be found at www.cp.net.

The statements in this press release relating to matters that are not historical are forward-looking statements. Actual results could differ materially from these forward-looking statements. Risks and uncertainties facing Critical Path are described in its prospectus dated June 1, 1999 and with its periodic filings with the Securities and Exchange Commission (www.sec.gov).

Note to Editors: Critical Path and the Critical Path logo are the trademarks of Critical Path, Inc. All other trademarks are the property of their holders.