| Vendor | Spec | Unit | Price | Currency | Date |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 450.36 | USD | 20251005 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 450.36 | USD | 20251004 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 344.8 | USD | 20250930 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 344.8 | USD | 20250930 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 436.28 | USD | 20250930 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 408.13 | USD | 20250930 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 450.36 | USD | 20250930 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 450.14 | USD | 20250929 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 436.07 | USD | 20250929 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 344.64 | USD | 20250929 |