| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 945.46 | USD | 20251113 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 960.0 | USD | 20251112 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 959.56 | USD | 20251111 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 959.56 | USD | 20251111 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 959.96 | USD | 20251107 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 959.57 | USD | 20251106 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 959.57 | USD | 20251106 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 959.08 | USD | 20251105 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 973.65 | USD | 20251103 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 959.54 | USD | 20251103 |