Han Zhaoshan. According to Qichacha, Panpan Wooden Doors was founded in 1982. The founder, Han Zhaoshan, died of illness in Japan in 2011, so the legal representative of Panpan Doors in Dancheng Luding Market is Han Zhaoshan. Panpan was founded in Yingkou, Liaoning. Its registered trademark is Panda Panpan, the prototype of which is Bas, the mascot of the 1990 Beijing Asian Games.