| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1040.95 | USD | 20250929 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1040.03 | USD | 20250928 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1040.03 | USD | 20250926 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1041.42 | USD | 20250925 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1041.42 | USD | 20250924 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1041.42 | USD | 20250923 |
| 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 |