| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1247.75 | USD | 20250909 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 971.72 | USD | 20250909 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 971.72 | USD | 20250909 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1098.47 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.43 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.43 | USD | 20250908 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1041.83 | USD | 20250908 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1041.83 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1247.38 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1171.35 | USD | 20250908 |