| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.51 | USD | 20251027 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.51 | USD | 20251027 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.21 | USD | 20251024 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.21 | USD | 20251024 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.28 | USD | 20251023 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.28 | USD | 20251023 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.04 | USD | 20251022 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.04 | USD | 20251022 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.2 | USD | 20251021 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.2 | USD | 20251021 |