| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 844.73 | USD | 20250908 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 746.17 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.73 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 943.28 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 901.04 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 936.24 | USD | 20250908 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 901.04 | USD | 20250908 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 901.04 | USD | 20250908 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 816.57 | USD | 20250908 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 816.57 | USD | 20250908 |