| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.92 | USD | 20251020 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.92 | USD | 20251020 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.08 | USD | 20251017 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.08 | USD | 20251017 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.95 | USD | 20251016 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.95 | USD | 20251016 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.78 | USD | 20251015 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.78 | USD | 20251015 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.61 | USD | 20251014 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.61 | USD | 20251014 |