CONCRETE.com Selects Time0 for Powerful B2B e-Commerce Solutions.

Business Editors/Building, Construction & High-Tech Writers

AUSTIN, Texas--(BUSINESS WIRE)--Nov. 14, 2000

Time0(tm) Will Provide Concrete.com With the

Ability to Conduct Forward and Reverse Auctions

for Concrete-Related Products and Services

CONCRETE.com, (http://www.concrete.com/) a digital marketplace for concrete professionals, plans to add auction capabilities to its Web site via Time0's SkyIron(tm) services.

CONCRETE.com targets the contractors, sub-contractors, engineers and architects who work with concrete everyday, providing the industry's largest selection of concrete-related products and services. SkyIron(tm) services evolved from the digital marketplace expertise of Time0(tm), a subsidiary of Perot Systems Corporation (NYSE:PER).

"CONCRETE.com will be the first digital marketplace to offer auction capabilities to the concrete construction industry," said Gaylon Yancy, the Web site's general manager. "We have heard resoundingly from our customers that they want to use the Internet to find up-to-date information on concrete and to locate equipment manufacturers or dealers. Now with Time0's SkyIron, we will be able to provide them with a way to not only source product and information but also get the best price."

CONCRETE.com and the SkyIron(tm) service infrastructure will empower construction professionals to utilize public auctions to buy and sell product, as well as to post requests for quotes. Rodney Davies, a leading analyst from Boral Materials Technologies in San Antonio, Texas, said, "Up until now, it has not been that easy for construction professionals to find product, much less get the best price using standard search techniques. CONCRETE.com and Time0(tm) are providing an invaluable and much needed service to this industry."

Time0's SkyIron services are in use at more than 50 digital marketplaces. "We help digital marketplaces, like CONCRETE.com, effectively add functionality to their Web site that helps them better serve their industry," said Navin Chandra, Time0's chief technologist for SkyIron services. "We think of the SkyIron digital marketplace services as the infrastructure that will help small- to medium-sized businesses embrace e-commerce."

Time0 will soon launch additional SkyIron(tm) SkyCommerce services, including: Marketplace Analytics, which track sales leads, marketplace performance and trends; and auctions, RFP, RFQ, on-line negotiation and live bid-ask exchange; and SkyBusiness offerings, including financial services for trade credit, insurance and factoring.

"Time0's strategy is to leverage the intellectual property and productized services that have been developed for large-scale Digital Marketplaces, such as BillingZone.com and Owens & Minor, and offer them to smaller businesses in a pre-customized, rapid-delivery format through SkyIron services," according to Mark Teflian, president of Time0.

"Time0's SkyIron services enable these business communities to self-organize and grow. In turn, these communities can more fully participate in their industries and electronic commerce," added Teflian.

About CONCRETE.com

CONCRETE.com was formed in October 1998, and spent the first 15 months designing the Web site and researching various aspects of the concrete industry. A unique online resource for the concrete industry, CONCRETE.com is dedicated to providing the largest selection of concrete products, services, and information for the professionals in the concrete and associated industries. Since Concrete.com is currently privately funded, and the staff is a combination of dedicated concrete professionals and specialized technical consultants, they use their extensive contacts to give an audience to researchers and contractors who have interesting and useful content, but have a hard time distributing their information through normal channels. For more information, visit http://www.concrete.com.

About Time0

Time0, a subsidiary of Perot Systems, forged the Digital Marketplace industry. As Digital Marketplace facilitator and fabricator, Time0 offers its clients an unprecedented combination of business process, platform, partners, marketplace expertise and an evolving set of productized services, including the Enchilada(R) information integration engine and SkyIron(tm) Digital Marketplace services for small business. Additional information on Time0 is located at http://www.time0.com.

About Perot Systems

Perot Systems Corporation is a worldwide provider of information technology services and business solutions. Through its integrated service offering, Perot Systems delivers end-to-end solutions that address all aspects of strategy, systems and infrastructure, enabling clients to accelerate growth, streamline operations, and create new levels of customer value. Headquartered in Dallas, Texas, Perot Systems reported 1999 revenue of $1.1 billion. The company has more than 7,500 associates located in the United States, Europe and Asia. Additional information on Perot Systems is available at www.perotsystems.com.

Statements contained within this press release may contain forward-looking statements, which involve risks and uncertainties that may cause actual results to vary from those contained in the forward-looking statements. In some cases, you can identify such forward-looking statements by terminology such as "may," "will," "could," "forecasts," "expects," "plans," "anticipates," "believes," "estimates," "predicts," "potential" or "continue." In evaluating these statements, you should specifically consider various factors that may cause actual results to vary from those contained in the forward-looking statements, such as: the loss of major clients; Perot Systems' ability to achieve future sales; changes in its relationship and variability of revenue and expense associated with its largest customer; the loss of key personnel; risks associated with establishing and growing start-up businesses; the highly competitive market in which Perot Systems operates; the variability of quarterly operating results; changes in technology; risks related to international operations. Please refer to the Perot Systems Annual Report on Form 10-K for the fiscal year ended Dec. 31, 1999, as filed with the U.S. Securities and Exchange Commission and available at www.sec.gov, for additional information regarding risk factors. Perot Systems disclaims any intention or obligation to revise any forward-looking statements whether as a result of new information, future developments or otherwise.

NOTE TO EDITORS: The company name, "Time0," has a symbol after "Time" throughout the text. The symbol should be a "null zero." The "null zero" has been replaced with a "0" for transmission purposes.