| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 970.61 | USD | 20250902 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 970.85 | USD | 20250901 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 970.85 | USD | 20250901 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1097.48 | USD | 20250901 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1098.13 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 971.42 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 971.42 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 970.97 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 970.97 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1097.62 | USD | 20250828 |