| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1209.46 | USD | 20250922 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1209.09 | USD | 20250920 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1209.09 | USD | 20250919 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1209.82 | USD | 20250918 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.81 | USD | 20250916 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.31 | USD | 20250915 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1211.13 | USD | 20250909 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.77 | USD | 20250908 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.18 | USD | 20250906 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.18 | USD | 20250905 |