| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1268.52 | USD | 20251017 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1367.18 | USD | 20251017 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1268.18 | USD | 20251016 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1366.81 | USD | 20251016 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1289.31 | USD | 20251016 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1366.29 | USD | 20251015 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1267.69 | USD | 20251015 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1288.82 | USD | 20251015 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1267.23 | USD | 20251014 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1365.79 | USD | 20251014 |