Perot Systems Awarded Three Year IT Services Contract Extension With Hutchison Whampoa

LONDON and PLANO, Texas -

- A Leading Global Telecom Company Renews Outsourcing Deal

Perot Systems Corporation (NYSE: PER) (www.perotsystems.com) has announced that it has been awarded a three year extension to its current IT services agreement with the 3 Group, Hutchison Whampoa’s 3G mobile telecoms business. The agreement further strengthens the three year-old relationship between the two companies, building on Perot Systems’ outstanding track record of meeting its service level agreement objectives. Financial terms of the contract were not disclosed.

Under the extended agreement, Perot Systems will continue to provide ongoing maintenance and management of key IT business applications, including effective knowledge management and solutions in service activation support for the seven 3G telecommunication operators of Hutchison Whampoa’s 3 Group.

Co-ordination of the project will be driven extensively from Perot Systems’ Bucharest, Romania facility as part of the company’s global delivery network of applications, infrastructure and consulting solutions. This contract demonstrates Perot Systems’ continued commitment to the EMEA region and to providing quality domain expertise and technical talent to the market.

“We are committed to helping Hutchison Whampoa continue its exceptional record of service delivery in the telecoms market,” said Ferenc Szelényi, EMEA Managing Director at Perot Systems. “We are proud to be one of Hutchison Whampoa’s trusted service providers, as it continues to deliver high-quality services to its customers in the coming years.”

About 3 Group

A division of Hutchison Whampoa, the 3 Group together with Hutchison Telecommunications International Limited, is the leading global player in the 3G arena, holding licenses in 11 markets with total population coverage of approximately 175 million.

The 3 Group has built an entirely new mobile broadband network, achieving probably the fastest rollout of a radio network in the entire telecom industry. Marketed globally under the 3 brand, the group was the first operator in the world to provide dual-mode 3G services.

To date, commercial 3G services have been launched in Italy, the UK, Australia, Austria, Sweden, Denmark, Hong Kong, Israel and Ireland. Hutchison announced more than 20 million customers in March 2009.

For more information about 3, please visit www.three.com

About Perot Systems

Perot Systems is a worldwide provider of information technology services and business solutions. Through its flexible and collaborative approach, Perot Systems integrates expertise from across the company to deliver custom solutions that enable clients to accelerate growth, streamline operations and create new levels of customer value. Headquartered in Plano, Texas, Perot Systems reported 2008 revenue of US$2.8 billion. The company has more than 23,000 associates located in the Americas, Europe, Middle East and Asia Pacific. Additional information on Perot Systems is available at www.perotsystems.com/.

This press release contains forward-looking statements that are subject to known and unknown risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. For factors that could affect our business and cause actual results to differ materially, please refer to our Annual Report on Form 10-K for the fiscal year ended December 31, 2008, as filed with the U.S. Securities and Exchange Commission and available at www.sec.gov/, as updated in our Quarterly Reports on Form 10-Q filed after such Form 10-K, for additional information regarding risk factors. We disclaim any intention or obligation to revise any forward-looking statements whether as a result of new information, future developments, or otherwise.

Media Contacts: PEROT SYSTEMS CORPORATION Joe McNamara +1-972-577-6165 joe.mcnamara@ps.net Karen Modlin +1-972-577-3597 Karen.modlin@ps.net UK Charlie Richards +44-20-7892-1071 Charlie.richards@ps.net OCTANE PR UK Katie Simpson +44-20-7802-2662 katies@octanepr.com

Source: Perot Systems Corporation

Joe McNamara, +1-972-577-6165, joe.mcnamara at ps.net, or Karen Modlin, +1-972-577-3597, Karen.modlin at ps.net, or UK, Charlie Richards, +44-20-7892-1071, Charlie.richards at ps.net, all of Perot Systems Corporation; or UK, Katie Simpson of OCTANE PR, +44-20-7802-2662, katies at octanepr.com, for Perot Systems Corporation