| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1040.7 | USD | 20250922 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1040.38 | USD | 20250920 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1040.38 | USD | 20250919 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1041.01 | USD | 20250918 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1041.86 | USD | 20250916 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1041.43 | USD | 20250915 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1042.14 | USD | 20250909 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1041.83 | USD | 20250908 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1041.31 | USD | 20250906 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1041.31 | USD | 20250905 |