Shanghai Haohai Biological Technology Co., Ltd.* 6826 2019 12 19 2019 12 19 2020 1 1 3.28 8.17 8.17 3.28 3.28 3.28 2019 12 24 3.28 8.17 1. 2. 3.28 1 3. 2020 1 1 2019 12 24 * 2