| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 459.34 | USD | 20251203 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 459.34 | USD | 20251203 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 459.08 | USD | 20251202 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 459.08 | USD | 20251202 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 459.31 | USD | 20251201 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 459.31 | USD | 20251201 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 459.11 | USD | 20251128 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 459.11 | USD | 20251128 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 459.18 | USD | 20251127 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 459.18 | USD | 20251127 |