| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.47 | USD | 20251014 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.51 | USD | 20251013 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.38 | USD | 20251011 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.38 | USD | 20251010 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.22 | USD | 20251009 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.36 | USD | 20250930 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.26 | USD | 20250929 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.06 | USD | 20250928 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.06 | USD | 20250926 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.36 | USD | 20250925 |