Reference NTT DATA's LonWorks Business Activities to Date and Their Background NTT DATA has been involved with LonWorks since April 1999, making use of its know-how in the field of operations and maintenance of its own computer building. In December of that year, NTT DATA received certification as a network integrator from Echelon, which constituted recognition of NTT DATA as a LonWorks SI supplier, and it quickly earned Echelon's trust. In its training center in the Komaba section of Tokyo, the construction of which was completed at the end of March 2000, equipment control and management was achieved, making full use of LonWorks, and technical verification was implemented. Since its completion, the center has been the focus of considerable attention, with over 1,000 observers having visited the facilities. NTT DATA has not only engaged in the business of constructing new facilities, but also in the refurbishment of buildings. As an example, starting in April 2001, NTT DATA worked together with Toda Corporation, employing LonWorks to completely refurbish the Shin Yaesu Building where Toda's headquarters is located. In addition to those integration activities, since June 2001, NTT DATA has been engaged in the training of integrators at its training center, which has been officially certified by Echelon. Moreover, since 2000, the center has doubled as the Certification Center in Japan for the LonMark Interoperability Association. Echelon Corporation and Echelon Japan K.K. Echelon Corporation (NASDAQ: ELON) is the company that developed the LonWorks network, which is recognized as the international standard for interoperable control networks. More than 5,000 companies develop applications on the LonWorks platform, and they are employed widely throughout the world. LonWorks systems provide control network solutions in a variety of fields such as BA (building automation), HA (home automation), the office, industry, transportation and public facilities. Echelon Corporation provides a broad range of off-the-shelf hardware and software products and supports the development, installation and management of open, interoperable and intelligent control networks. Echelon's headquarters is located in San Jose, California, with branches and sales offices in China, France, Germany, Japan, South Korea, the Netherlands, and the United Kingdom. Echelon Japan K.K. is a locally incorporated subsidiary of Echelon Corporation, providing domestic marketing, sales and technical support. For the latest information on Echelon Corporation and Echelon Japan, please visit http://www.echelon.com or http://www.echelon.co.jp.