| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem | China national standards | MT | 223.52 | USD | 20251211 |
| Shanghai SKY Chem | China national standards | MT | 223.31 | USD | 20251210 |
| Shanghai SKY Chem | China national standards | MT | 223.25 | USD | 20251209 |
| Shanghai SKY Chem | China national standards | MT | 223.28 | USD | 20251208 |
| Shanghai SKY Chem | China national standards | MT | 223.32 | USD | 20251205 |
| Shanghai SKY Chem | China national standards | MT | 223.38 | USD | 20251204 |
| Shanghai SKY Chem | China national standards | MT | USD | 20251203 | |
| Shanghai SKY Chem | China national standards | MT | USD | 20251202 | |
| Shanghai SKY Chem | China national standards | MT | USD | 20251201 | |
| Shanghai SKY Chem | China national standards | MT | USD | 20251128 |