| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 542.02 | USD | 20250831 |
| Nanjing Daze Trading Co., Ltd. | China national standards | MT | 774.32 | USD | 20250831 |
| Nanjing Daze Trading Co., Ltd. | China national standards | MT | 774.32 | USD | 20250830 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 542.02 | USD | 20250830 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 542.02 | USD | 20250830 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 506.83 | USD | 20250830 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 542.02 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 506.83 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.83 | USD | 20250829 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 619.46 | USD | 20250829 |