| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 492.56 | USD | 20250923 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 492.56 | USD | 20250923 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 492.22 | USD | 20250922 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 492.22 | USD | 20250922 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 492.07 | USD | 20250919 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 492.07 | USD | 20250919 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 492.37 | USD | 20250918 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 492.37 | USD | 20250918 |