| Vendor | Spec | Unit | Price | Currency | Date |
| 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 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.38 | USD | 20250904 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.04 | USD | 20250901 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.76 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.19 | USD | 20250828 |