| Vendor | Spec | Unit | Price | Currency | Date |
| 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 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1288.61 | USD | 20251013 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1366.06 | USD | 20251013 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1365.27 | USD | 20251011 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1266.75 | USD | 20251011 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1287.86 | USD | 20251011 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1196.37 | USD | 20251011 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1365.27 | USD | 20251010 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1196.37 | USD | 20251010 |