Liangzhu Culture-Liangzhu Culture is one of the Neolithic cultural sites in China, distributed in Taihu Lake area in the lower reaches of the Yangtze River, with Liangzhu in Zhejiang Province as the center. The cultural sites discovered in 1936 are named after Liangzhu culture in 1959 according to archaeological practice. Liangzhu culture existed from about 5300 to 4200 years ago, belonging to the Neolithic Age. The biggest feature of this cultural site is the unearthed jade. The jades unearthed from tombs include jade, jade, jade, jade, jade, jade bracelet, jade tube, jade bead, jade pendant, cylindrical jade, conical jade, jade belt, jade ring and so on. In addition, pottery is also quite meticulous.

Hongshan Culture-Hongshan Culture is an agricultural culture created by a tribal group living in the upper reaches of Daling River and Xiliao River in the north of Yanshan Mountain five or six thousand years ago. It is named after Hongshanhou site first discovered in the suburb of Chifeng City, Inner Mongolia Autonomous Region.

The above two places should be the earliest places where jade articles have been found at present. It's hard to say which is earlier.