| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 787.56 | USD | 20250922 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 787.31 | USD | 20250920 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 787.31 | USD | 20250919 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 788.43 | USD | 20250916 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 788.11 | USD | 20250915 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 788.64 | USD | 20250909 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 788.41 | USD | 20250908 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 788.02 | USD | 20250906 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 788.02 | USD | 20250905 |