Inch Kai Tai's "vault Local Records" record:. "Teng for Crafts number over one thousand jade work, the system for vessels, offering the provinces of Yunnan Yuan top grade Liangyu, mainly to eastern Guangdong, Shanghai, Fujian, Zhejiang, Kyoto .
To the Qing Dynasty, the city that is only Tengchong Jade hundred workshops, jade craftsmen three thousand people, the cut "each vessel wall outlets Yunnan province, the top grade Liangyu, prone to eastern Guangdong, Shanghai, Fujian, Zhejiang, Kyoto "Inch Kai Tai" vault Local Records "[1] produced emerald Myanmar arch Meng, Myitkyina area, from China's Yunnan border is only 150 km away. in the Ming Dynasty, here was part of Yongchang House (now Baoshan City, Yunnan Province) jurisdiction due to historical reasons, is known as the "Oriental treasures" by the Yunnan Tengchong jade, entered the border town of Ruili, has 45 centuries of history.