| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.85 | USD | 20250916 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.64 | USD | 20250915 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.99 | USD | 20250909 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.84 | USD | 20250908 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.59 | USD | 20250906 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.59 | USD | 20250905 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.53 | USD | 20250901 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.83 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.59 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.27 | USD | 20250827 |