LONDON, (BUSINESS WIRE), Aug. 20, 2002–SchlumbergerSema, a business unit of Schlumberger Limited (NYSE:SLB), today announced that it has signed a contract with Hutchison 3G UK Limited (Hutchison 3G) to supply USIM (Universal Subscriber Identity Module) smart cards and provide training and support.

The contract calls for SchlumbergerSema to deliver its Usimera(a) cards to Hutchison 3G UK, as well as Hutchison Whampoa’s other 3G operations around the world.

Since SchlumbergerSema Usimera cards are designed to provide the highest levels of security for transactions, while optimizing memory capacity, they enable the secure deployment of data services and applications. In addition to providing enhanced authentication to the network, special measures have been incorporated into the Usimera cards to deliver improved security.

“We believe SchlumbergerSema is the world’s leading provider of smart card solutions,” said Colin Tucker, managing director, Hutchison 3G. “Successful completion of their 3G trials, combined with their global production and training support capabilities, made them a sound choice. It was important for us to select a USIM partner that has the experience and expertise to deliver all our requirements, on time and to budget.”

“USIMs are the most sophisticated smart cards ever supplied to the wireless communications industry, and a major catalyst for the development of secure 3G services,” said Xavier Chanay, vice president, Mobile Cards, SchlumbergerSema. “Our USIM cards are the culmination of many years of development effort, and we are pleased to be working with Hutchison 3G at the forefront of multimedia communications.”

In May 2002, Hutchison 3G awarded SchlumbergerSema a separate contract to provide consulting and project management expertise for the deployment of Hutchison 3G’s security platform.

About SchlumbergerSema

SchlumbergerSema is one of two business segments of Schlumberger Limited, a global technology services company. With more than 30,000 employees serving customers in 65 countries, SchlumbergerSema aggregates IT consulting, systems integration, managed services and related products to the oil and gas, telecommunications, energy and utilities, finance, transport and public sector markets. Leveraging the Schlumberger DeXa(a) Suite of Services, it also provides IP network connectivity, information security solutions, distributed computing support services and data center hosting services. In 2001, Schlumberger revenues were $13.7 billion. For more information, visit http://www.slb.com.

About Hutchison 3G

3G is a convergence of media, information and telephony which enables people to access information and entertainment services on the move. The 3G standard (agreed throughout Europe, Japan, China, and the rest of Asia) is formally known as UMTS (Universal Mobile Telecommunications System). It represents a global standard for third generation communication systems and is at the heart of the Hutchison 3G initiative. Hutchison Whampoa Limited holds a 65 per cent stake in Hutchison 3G, the other major shareholders are NTT DoCoMo (20 per cent) KPN Mobile (15 per cent).

Hutchison 3G will be called 3 when it begins offering services. 3 services will be available from sister companies in Australia, Austria, Denmark, Hong Kong, Ireland, Italy, Israel and Sweden. For further information on Hutchison 3G please visit http://www.hutchison3g.com or call Firefly on 020 7386 1595

(a) Usimera and DeXa are marks of Schlumberger.

CONTACT: SchlumbergerSema; Karen Hodgson, 905/315-9719; khodgson@slb.com; or

Metzger Associates; Kathryn Marshall, 303/786-7000; kathryn@metzger.com