On November 25, 2019, the auction of sand mining rights in the river channel of ZhenYuan County, Pu'er City, was held as scheduled in the Bid Opening Hall of the County Public Resources Trading Center. After intense bidding, the 20 bids that were finally included in the auction were sold for 13 bids at a price of RMB 18.86 million, a premium of RMB 5.5 million. This is a successful attempt to use the payable gravel resources of the river for the first time in Pu'er City.