CMS Marketing, Services and Trading Company Selects EnSite Safari Suite Software.

Business Editors & Energy Writers

OMAHA, Neb.--(BUSINESS WIRE)--Oct. 2, 2001

EnSite Incorporated, a leading software solutions provider for energy retailers and service providers, today announced that CMS Marketing, Services and Trading Company ("CMS MS&T") has selected the EnSite Safari Suite(TM) software platform to integrate and streamline key business processes and operations to efficiently manage its customer growth in the unregulated energy markets. CMS MS&T specializes in the trading and marketing of energy commodities as well as the special products designed to help performance-driven customers get the most from their energy purchases.

"Our business in deregulated energy markets will grow significantly as a result of our marketing efforts and through selective business acquisitions. Systems and technology will play a key role in our success," said Steve Husband, vice president, business solutions at CMS MS&T. "We expect Safari Suite to enhance our team's ability to continue to operate efficiently and profitably, as well as maintain service excellence for our customers.

EnSite Safari Suite(TM) is a component-based, powerful "sale-to-invoice" software solution for energy retailers and service providers. The Suite is comprised of Safari Billing, a multi-commodity billing system, and Safari Gas Management, a utility nominations/scheduling system. Safari manages customer relationships, offers innovative pricing products, generates customized invoices, supports business processes with flexible reporting capabilities, and facilitates informed decisions with access to information in one system. Additionally, Safari Gas Management enables you to perform monthly/daily forecasting, daily balancing, storage management, and avoid costly utility penalties. EnSite Safari Suite(TM) is designed to enable growth for energy retailers and service providers by providing a scalable platform and increasing back room efficiency to stay ahead of the competition.

"We are excited that CMS MS&T has selected EnSite and Safari Suite to support their growth", stated Rod Bates, Vice President of Sales and Marketing at EnSite. "CMS MS&T is one of the fastest-growing energy marketing companies in North America, and Safari Suite will provide them with a solution to integrate their business processes, reduce their overall operating costs, and enhance their client relationships and services."

About CMS Marketing, Services and Trading Company

CMS MS&T (www.cmsenergy.com/MST), which is a subsidiary of CMS Energy Corporation (NYSE:CMS), is headquartered in Houston, Texas. CMS MS&T markets natural gas, electricity, coal, crude oil and petrochemical-based liquids to major industrial and commercial companies. CMS MS&T has more than 11,000 customers throughout the eastern and central United States and Canada. The company also provides energy management services and energy performance contracting and distributed generation products nationwide. The 2001 Mastio Natural Gas Markets Customer Satisfaction Study ranks CMS MS&T first in customer satisfaction among the 68 largest natural gas marketing companies in the U.S.

About EnSite Incorporated

EnSite (www.EnSite.com), a HunTel company (www.HunTelWorld.com), provides leading-edge software solutions for deregulated energy retailers and service providers. EnSite leverages its energy industry expertise with innovative technology to create comprehensive software applications. EnSite, supported by its synergies with HunTel Systems, is positioned to benefit from the on-going deregulation of the energy markets and the future convergence with telecommunications services.