On September 30, 2021, the EPC+O contract for the 10K tons battery level lithium carbonate of green integrated development and utilization project of Zhabuye Salt Lake in Tibet was signed at East China Engineering Science and Technology Co., Ltd. The scale of the project is 9600t/a battery grade lithium carbonate, 2400t/a industrial level lithium carbonate and 156kt/a potassium chloride using the advanced brine lithium extraction process of nano filtration+ evaporative crystallization.