TELESTE CORPORATION STOCK EXCHANGE RELEASE 31.3.2010 AT 10:15 NEW SHARES IN TELESTE CORPORATION ENTERED INTO THE TRADE REGISTER A total of 381,000 new shares subscribed in the share issue of Teleste Corporation have been entered into the Trade Register today on 31 March 2010. The shareholder rights will commence when the new shares have been entered into the Trade Register. After the Trade Register entry of the new shares, the number of the Company's shares will be 18,186,590 shares. The shares entered into the Trade Register will be applied for public trading on NASDAQ OMX Helsinki Ltd on 1 April 2010. Teleste is an international technology group founded in 1954, which is specialized in broadband data communication systems and solutions. The group is divided into two Strategic Business Units: Broadband Cable Networks and Video Networks. Broadband Cable Networks serves cable operators and a major part of its business activities are handled through direct customer contact. Video Networks supplies solutions for optical signal transmission and video network management software solutions for video surveillance and a major part of its business is handled through system integrators. Both Business Units are among the leading providers in their market areas and are globally recognized for their know-how and ability to produce technically cutting edge solutions year after year. In 2009 the group's net sales totalled EUR 142 million and the group employed 1260 persons at the year-end. The company has approximately 30 offices world-wide and over 90% of Teleste's net sales are generated outside Finland. The company is listed on the NASDAQ OMX Helsinki Ltd. Visit www.teleste.com for more information. TELESTE CORPORATION Jukka Rinnevaara CEO Distribution: NASDAQ OMX Helsinki Ltd Main Media www.teleste.com