| Vendor | Spec | Unit | Price | Currency | Date | 
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 324.66 | USD | 20251029 | 
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 323.97 | USD | 20251015 | 
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 323.48 | USD | 20251009 | 
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 323.48 | USD | 20251009 | 
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 323.56 | USD | 20250918 | 
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 323.56 | USD | 20250918 |