| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 986.36 | USD | 20251016 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 1549.99 | USD | 20251016 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 971.9 | USD | 20251015 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 985.82 | USD | 20251013 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 985.25 | USD | 20251011 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 985.25 | USD | 20251010 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 985.25 | USD | 20251010 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 1687.72 | USD | 20251009 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 984.5 | USD | 20251009 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 985.15 | USD | 20250930 |