| Vendor | Spec | Unit | Price | Currency | Date |
| Zhangzhou Sanan Chem | China national standards | MT | 309.41 | USD | 20251009 |
| Zhangzhou Sanan Chem | China national standards | MT | 309.62 | USD | 20251008 |
| Zhangzhou Sanan Chem | China national standards | MT | 309.62 | USD | 20251007 |
| Zhangzhou Sanan Chem | China national standards | MT | 309.62 | USD | 20251001 |
| Zhangzhou Sanan Chem | China national standards | MT | 309.62 | USD | 20250930 |
| Zhangzhou Sanan Chem | China national standards | MT | 309.2 | USD | 20250928 |
| Zhangzhou Sanan Chem | China national standards | MT | 309.2 | USD | 20250927 |
| Zhangzhou Sanan Chem | China national standards | MT | 309.2 | USD | 20250926 |
| Zhangzhou Sanan Chem | China national standards | MT | 309.61 | USD | 20250923 |
| Zhangzhou Sanan Chem | China national standards | MT | 309.3 | USD | 20250921 |