New GSM operators Centennial and INTELCO to drive revenue using Gemplus's SIM-based provisioning and content messaging services

Gemplus adds an average of $2.50 to monthly Average Revenue Per User (ARPU) with pulled content messages providing ring tones, icons, horoscopes, weather, news, sports trivia, quotes, and numerology

Luxembourg, Las Vegas, NV, RCA Annual Conference and Exhibition, April 14, 2004 - Gemplus International S.A. (Euronext: LU0121706294 - GEM and NASDAQ: GEMP), the world's leading provider of smart card solutions, today announces that Centennial Communications Corp. and International Telecommunications Ltd. (INTELCO), have selected its SIM cards, provisioning and content messaging services for their GSM service.

Centennial is one of the largest independent wireless telecommunications service providers in the United States and the Caribbean and INTELCO is a new nationwide wireless operator in Belize. Centennial's GSM subscribers, as well as INTELCO's anticipated growing subscriber-base will have access to Gemplus's Operated Services solution, which has now been selected by ten wireless service providers in the Americas. This demonstrates the growing interest in SIM-based services and the increasing adoption of GSM in the region.

"Gemplus offers a one-stop shop for SIM cards and remote provisioning services," said Phil Mayberry, President U.S. Wireless at Centennial. "The service is efficient and convenient for operators migrating to GSM. We benefit from their long experience in this field."

In addition to SIM cards and remote provisioning services, Gemplus will also provide content to INTELCO and Centennial subscribers, who will be able to use interactive menus loaded on the SIM cards to pull premium messaging content.

Gemplus offers ring tones, icons, horoscopes, weather, and news and recently added inspirational and humorous quotes, biorhythms, energy meters, sports trivia, and games to its content library. With Gemplus's messaging services, operators can immediately differentiate themselves in a competitive marketplace and rapidly increase ARPU based on Short Message Service (SMS). Results from operators who have implemented Gemplus's content messaging services show an average increase of $2.50 to the overall ARPU.

"We are proud to add Centennial and INTELCO to our growing list of Operated Services customers," said Jean-Louis Carrara, North American Vice President of Telecommunications Marketing and Technical Consulting at Gemplus. "Service providers can launch our services within one month and our track record shows ARPU creation immediately."

"We at INTELCO rely on Gemplus's superior technical expertise and proven project management for our GSM launch in Belize. Gemplus's SIM card initialization and subscriber management services drastically simplify the entire integration process," said Juan Carlos Namis, Director of Information Systems at INTELCO.

To learn more about Gemplus's content messaging services, please visit the Gemplus booth #522 at the Rural Cellular Association's Annual Conference and Exhibition in Las Vegas, Nevada from April 13-16.

About Gemplus

Gemplus International S.A.(Euronext: LU0121706294 - GEM and NASDAQ: GEMP) is the world's leading player in the smart card industry in both revenue and total shipments (source 2002: Gartner-Dataquest, Frost & Sullivan, Datamonitor.) It has the largest R&D team, unrivalled experience, and an outstanding track record of technological innovation. 

Gemplus helps its clients offer an exceptional range of portable, personalized solutions that bring security and convenience to people's lives. These include Mobile Telecommunications, Public Telephony, Banking, Retail, Transport, Identity, WLAN, Pay-TV, e-government, access control, and a wealth of other applications. 

Gemplus' revenue in 2003 was 749 million Euros.

www.gemplus.com

About Centennial

Centennial is one of the largest independent wireless telecommunications service providers in the United States and the Caribbean with approximately 17.3 million Net Pops and approximately 1,027,500 wireless subscribers. Centennial's U.S. operations have approximately 6.1 million Net Pops in small cities and rural areas. Centennial's Caribbean integrated communications operation owns and operates wireless licenses for approximately 11.2 million Net Pops in Puerto Rico, the Dominican Republic and the U.S. Virgin Islands, and provides voice, data, video and Internet services on broadband networks in the region. Welsh, Carson Anderson & Stowe and an affiliate of the Blackstone Group are controlling shareholders of Centennial.

For more information regarding Centennial, please visit our websites at www.centennialwireless.com, www.centennialpr.com and www.centennialrd.com

About INTELCO 

Formed in January of 2000, International Telecommunications Ltd. (INTELCO) is a telecommunications company that is headquartered at mile 13.5 Northern Highway in the country of Belize. INTELCO currently provides voice and data services to the Government of Belize and to the Export Processing Zones and Commercial Free Zones in the country of Belize. INTELCO is also offering general telecommunications services to the public. These include cellular, internet, international long distance, local long distance, local voice and video services through a nation-wide wireless local loop telecom network covering all municipalities in Belize.

For more information

Kerry Butler
Gemplus Americas PR Manager
Tel : +1 (215) 390 2840
kerry.butler@gemplus.com

Harjiv Singh
Edelman - New York
Tel: +1 (212) 704 8186
Email: harjiv.singh@edelman.com

©2004 Gemplus. All rights reserved. Gemplus, and the Gemplus logo are trademarks and service marks of Gemplus S.A. and are registered in certain countries. All other trademarks and service marks, whether registered or not in specific countries, are the property of their respective owners.

Some of the statements contained in this release constitute forward-looking statements. These statements relate to future events or our future financial performance and involve known and unknown risks, uncertainties, and other factors that may cause our or our industry's actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activities, performance, or achievements expressed or implied by such forward-looking statements. Actual events or results may differ materially. Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, levels of activity, performance or achievements. Factors that could cause actual results to differ materially from those estimated by the forward-looking statements contained in this release include, but are not limited to: trends in wireless communication and mobile commerce markets; our ability to develop new technology, and the effects of competing technologies developed and expected intense competition generally in our main markets; profitability of our expansion strategy; challenges to or loss of our intellectual property rights; our ability to establish and maintain strategic relationships in our major businesses; our ability to develop and take advantage of new software and services; and the effect of future acquisitions and investments on our share price. Moreover, neither we nor any other person assumes responsibility for the accuracy and completeness of such forward-looking statements. The forward-looking statements contained in this release speak only as of this release. We are under no duty to update any of the forward-looking statements after this date to conform such statements to actual results or to reflect the occurrence of anticipated results.