| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1365.27 | USD | 20251010 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1126.0 | USD | 20251010 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1364.24 | USD | 20251009 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1364.24 | USD | 20251009 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1286.88 | USD | 20251009 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1195.47 | USD | 20251009 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1287.73 | USD | 20250930 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1365.14 | USD | 20250930 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1287.12 | USD | 20250929 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1364.49 | USD | 20250929 |