| Vendor | Spec | Unit | Price | Currency | Date |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 593.65 | USD | 20251205 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 593.78 | USD | 20251204 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 466.54 | USD | 20251204 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 466.37 | USD | 20251201 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 593.56 | USD | 20251201 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 593.25 | USD | 20251126 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 466.13 | USD | 20251126 |