| Vendor | Spec | Unit | Price | Currency | Date |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 325.02 | USD | 20251208 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 353.36 | USD | 20251205 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 353.31 | USD | 20251201 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 353.13 | USD | 20251126 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 324.74 | USD | 20251125 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 324.6 | USD | 20251118 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 324.6 | USD | 20251118 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 324.74 | USD | 20251114 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 352.94 | USD | 20251112 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 324.56 | USD | 20251111 |