| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Lianchem | China national standards | MT | 1201.7 | USD | 20251204 |
| Dongying Lianchem | China national standards | MT | 1175.91 | USD | 20251203 |
| Dongying Lianchem | China national standards | MT | 1175.24 | USD | 20251202 |
| Dongying Lianchem | China national standards | MT | 1200.67 | USD | 20251202 |
| Dongying Lianchem | China national standards | MT | 1201.26 | USD | 20251201 |
| Dongying Lianchem | China national standards | MT | 1201.26 | USD | 20251201 |
| Dongying Lianchem | China national standards | MT | 1175.82 | USD | 20251201 |
| Dongying Lianchem | China national standards | MT | 1200.75 | USD | 20251129 |
| Dongying Lianchem | China national standards | MT | 1200.75 | USD | 20251128 |
| Dongying Lianchem | China national standards | MT | 1200.92 | USD | 20251127 |