NTDEC (whose full name is Nintendo Electronic Co. (Chinese: 任天堂電子有限公司)), was a Taiwanese manufacturer of cartridges, accessories and original games for NES and Famicom. For both they also manufactured converters to play Famicom titles on the NES. The company was founded in 1983 (according to the Asder official website), but in the 80's its activities were and are still today unknown.