NTDEC (Nintendo Electronic Co., 任天堂電子有限公司) is a company that produced pirate Famicom and NES cartridges from 1988 to 1991, and numerous unlicensed original games from 1991 onwards, although the company itself has been active since 1983. Since 1993 it has operated under the name Asder (亞斯德科技有限公司), and currently produces children's educational products.