From Sega Retro
Chuanpu Technology, also known as Jam Port and simply Chuanpu, was a Taiwanese unlicensed video game developer and publisher which specialized in the production of strategy role-playing games for the Sega Mega Drive. Later in its existence, the company reformed as a film production studio dedicated to making movies based on one of their more popular games, Shui Hu Zhuan.
Due to the decline of 16-bit video game consoles in China, Chuanpu was closed in 1996. Sometime in the late 2000's, the company was reformed as a film production studio and began making movies based on their 1996 strategy role-playing game Shui Hu Zhuan.
Around 1995, Chuanpu's games exclusively utilized the version of Data East's Side Pocket sound driver used in the 1991 action platformer High Seas Havoc; this driver would eventually find its way into the significant majority of unlicensed Sega Mega Drive games.