Stockholm, Sweden - 09October 2012 Transmode Holding AB's Interim Report for January-September 2012 will be published at 08.00 AM CET, October 23, 2012. The Company therefore invites media, investors and analysts to a telephone conference (in English) at 09:00 AM CET, October 23, 2012 where the Interim Report will be presented by Karl Thedéen, CEO, and Tomas Kihlstrand, CFO. To access the telephone conference, please call UK +44 (0) 808 109 0700 alternatively, call the Swedish number +46 (0) 20 089 63 77 and state that you are joining the "Transmode conference call" a few minutes before the scheduled start. The conference and presentation can also be followed live online, see Transmode's homepage: http://www.transmode.com/en/interim-reports/interim- reports The information in this announcement is required to be disclosed by Transmode Holding AB under the Swedish Securities Markets Act (Sw. lagen om värdepappersmarknaden). This information was released for publication at 09:00 AM CET on 9 October 2012. For more information please contact: Ola Elmeland Vice President Marketing & Communications Transmode Systems AB Telephone: +46 8 506 882 71 Email: ola.elmeland@transmode.com About Transmode Transmode is a global provider of packet-optical networking solutions that enable fixed line and mobile network operators to cost effectively address the capacity needs created by the rapid growth in video and data traffic. These solutions are important building blocks in next-generation high-speed optical networks that support services such as broadband backhaul, mobile data backhaul, video delivery services and cloud computing. Transmode's solutions are based on Wavelength Division Multiplexing (WDM) and packet optical transport technologies, which are designed to increase the capacity, flexibility and functionality of optical metro core and metro access networks. Transmode's Intelligent WDM (iWDM(TM)) approach gives key advantages to customers, such as ultra-low latency, low power consumption and innovative network design. Transmode is headquartered in Stockholm, Sweden and is listed on the NASDAQ OMX Stockholm Exchange (TRMO). Since 2000 the company has installed more than 30,000 systems for over 400 fixed and mobile network operators, service providers, large enterprises and public institutions in over 40 countries across the globe. For additional information about Transmode, please visit www.transmode.com. [HUG#1647421]