Ecofin Goes Live on Execta(TM) Portfolio Management and Trade Execution Platform from Tethys Technology, Inc.

London and New York - 18 December 2007

Ecofin Ltd., a multi-billion dollar asset management firm, which invests in global utilities and infrastructure sectors, has gone live with the Execta(TM) Portfolio Management and Execution Management System ("EMS") from Tethys Technology, Inc. Ecofin has implemented Execta simultaneously in London and New York and plans to implement TotalTCA(TM), the pre-trade, real-time and post-trade transaction cost analysis offering from Tethys, in the near future.

"Tethys products allow us to take advantage of trading opportunities around the world and they provide us access to state-of-art algorithmic trading technology and analytics on our desktop. In addition Tethys has helped us streamline the entire trade-booking and allocation process. Tethys Technology was one of the few vendors who could support the workflow we required. Ecofin chose Execta(TM) for its flexibility, low latency, multi-asset algorithmic trading capabilities and the high-quality support. As our firm continues to grow, we needed a system that can easily scale to support new trading strategies and investment funds," says Mike Earlywine, Ecofin's trader.

"We are pleased to have Ecofin as client. They are a sophisticated firm with deep understanding of markets and technology," said Nitin Gambhir, Chief Executive Officer and President of Tethys about Ecofin. "Tethys is committed to providing leading-edge analytics and trading technology to our clients globally."

Tethys' Execta(TM) EMS Platform is the most powerful and flexible broker-neutral algorithmic trading and portfolio management solution available today. It supports global trading in equities, options, futures and F/X. The platform includes modules for trading strategy simulation and optimal execution strategy determination.

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