| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 945.33 | USD | 20251123 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251123 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 903.0 | USD | 20251123 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251123 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251123 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1269.84 | USD | 20251123 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251122 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251122 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251122 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251122 |