| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1287.7 | USD | 20250925 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1365.1 | USD | 20250925 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1287.7 | USD | 20250924 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1365.1 | USD | 20250924 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1365.1 | USD | 20250923 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1266.59 | USD | 20250923 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1195.4 | USD | 20250922 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1286.81 | USD | 20250922 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1364.16 | USD | 20250922 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1286.41 | USD | 20250920 |