| Vendor | Spec | Unit | Price | Currency | Date |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 409.22 | USD | 20251103 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 423.25 | USD | 20251102 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 423.25 | USD | 20251101 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 423.25 | USD | 20251031 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 423.25 | USD | 20251031 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 409.14 | USD | 20251031 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 409.14 | USD | 20251031 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 423.35 | USD | 20251030 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 409.23 | USD | 20251030 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 407.82 | USD | 20251030 |