History
- 2009
- July 9, Changsha Sainz Environmental Protection Technology Co., LTD was establishedTo conduct pilot-scale incubation and application promotion of biological agent production
- 2017
- May 17 shareholder reform of Sainz Environmental Protection Co., LTD
- 2019
- June 30, zijin Mining Group south Investment Co., LTD
- 2020
- In June, the first share transfer and entrustment distribution and equity entrustment relationship of Sainz
- 2020
- December 8, Sainz second share transferZijin Mining Zifeng (Xiamen) Investment Partnership (Limited Partnership)
- 2022
- November 25,Science was listed on Sci-tech Innovation Board of Shanghai
Stock Exchange with stock code 688480
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