SUMITOMO TRUST & BANKING GOES LIVE WITH CALYPSO INTEREST RATE AND FX DERIVATIVES SYSTEM

Tokyo, 20 February 2006 - Calypso Technology, Inc., a leading provider of capital markets trading solutions for global financial institutions, today announced that Sumitomo Trust & Banking (STB) has gone live with Calypso's innovative interest rate and foreign exchange derivatives software solutions.

STB had been looking for a platform upon which its could grow its treasury business, while also providing enhanced customer service and improving operational efficiency. The bank selected Calypso as it provides a single platform which supports the broad range of financial instruments that STB trades. In addition, the Calypso solution provides STB with the option to further expand its range of products and services for clients in the future.

"We selected Calypso because we felt that it was a strategic technology solution that would allow us to decrease the time taken to develop new products and release them to clients. We have worked in partnership with Calypso, along with Mitsui Knowledge Industry, to develop a solution that meets our needs in the Japanese market and can be implemented to fully meet the requirements of customers' platforms," said Akifumi Uchida, Deputy General Manager, Market Making Department at Sumitomo Trust & Banking.

In the first stage of the project, STB was able to move its important FX business onto Calypso. Following that highly successful launch, interest rate and FX derivatives have now been added. This means STB will be able to perform cross-product risk analysis and carry out all trading and associated hedging activities on a single, integrated solution.

"In addition to the foreign exchange system already in service, we now have an integrated solution for combined risk, one of the greatest strengths of the Calypso solution. We are looking forward to making full use of its features," Sumitomo's Uchida said.

"We are delighted to have played an instrumental role in STB achieving its business objectives. Rolling out a single solution to cover trading and processing of multiple products is the proven way to reduce total cost of ownership. STB's decision to deploy Calypso as that single solution is testament to our strength in that area," commented Charles Marston, Chairman and CEO of Calypso Technology, Inc. "Working with STB has given us further valuable insight into the Japanese financial marketplace and enabled us to ensure that our solutions meet the unique requirements of the region."

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