| Vendor | Spec | Unit | Price | Currency | Date |
| Zhangzhou Sanan Chem | China national standards | MT | 311.24 | USD | 20251211 |
| Zhangzhou Sanan Chem | China national standards | MT | 310.94 | USD | 20251210 |
| Zhangzhou Sanan Chem | China national standards | MT | 310.85 | USD | 20251209 |
| Zhangzhou Sanan Chem | China national standards | MT | 310.89 | USD | 20251208 |
| Zhangzhou Sanan Chem | China national standards | MT | 310.96 | USD | 20251207 |
| Zhangzhou Sanan Chem | China national standards | MT | 310.96 | USD | 20251205 |
| Zhangzhou Sanan Chem | China national standards | MT | 310.94 | USD | 20251203 |
| Zhangzhou Sanan Chem | China national standards | MT | 310.76 | USD | 20251202 |
| Zhangzhou Sanan Chem | China national standards | MT | 310.91 | USD | 20251201 |
| Zhangzhou Sanan Chem | China national standards | MT | 310.78 | USD | 20251130 |