Epcos AG is a German manufacturer of electronic components, modules and systems. The company was created in 1999 from Siemens Matsushita Components, which was a joint venture of Siemens and Matsushita in 1989. The stock opened on 15 October 1999 at the same time in Frankfurt and New York City, with Siemens and Matsushita holding interests of 12.5% each. In 2006 Siemens sold its shares of Epcos. In October 2006 Matsushita also sold its holdings. TDK Corporation agreed to acquire a controlling stake in the company on 31 July 2008. After complete acquisition of EPCOS by TDK on October 1, 2009 the TDK-EPC cooperation with about 36,000 employees (worldwide) was founded in Japan. EPCOS' portfolio includes capacitors, ceramic components, EMC filters, inductors, non-linear resistors, RF modules, surface acoustic wave components, surge arresters and ferrites.