| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 788.12 | USD | 20250930 |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 787.05 | USD | 20250928 |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 802.17 | USD | 20250925 |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 816.25 | USD | 20250924 |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 816.25 | USD | 20250923 |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 843.81 | USD | 20250922 |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 844.06 | USD | 20250918 |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 858.13 | USD | 20250918 |