Complex sentence: Rojam is the brand name of Rojam Entertainment Holdings Limited, a Japanese owned entertainment company founded by Mr.Tetsuya Komuro in 1988 and was listed in Hong Kong Stock Exchange since May 2001.
Split into simpler sentences: Rojam is the brand name of Rojam Entertainment Holdings Limited, a Japanese--owned entertainment company founded by Tetsuya Komuro in 1988. It has been listed in the Hong Kong Stock Exchange since May 2001.