Yunnan is one of the largest jewelry and jade distribution centers in China. Yunnan is one of the most important gem producing areas in China, and it is an out-and-out gem kingdom.

Shizong generally refers to shizong county. Shizong county, which belongs to Qujing City, Yunnan Province, is a multi-ethnic agricultural county in mountainous areas. It was named after Sejong, a tribal leader in the Tang Dynasty, who led troops to live in Ninongdian (Xihua Village outside the present Zongxian County). Shizong county, located in the southeast of Yunnan Province, is one of the old revolutionary counties in Yunnan Province.