| Vendor | Spec | Unit | Price | Currency | Date |
| Shanxi Yangmei Chem | China national standards | MT | 513.08 | USD | 20251207 |
| Shanxi Yangmei Chem | China national standards | MT | 522.94 | USD | 20251203 |
| Shanxi Yangmei Chem | China national standards | MT | 522.33 | USD | 20251108 |
| Shanxi Yangmei Chem | China national standards | MT | 522.33 | USD | 20251107 |
| Shanxi Yangmei Chem | China national standards | MT | 522.33 | USD | 20251107 |
| Shanxi Yangmei Chem | China national standards | MT | 522.33 | USD | 20251107 |
| Shanxi Yangmei Chem | China national standards | MT | 522.33 | USD | 20251107 |
| Shanxi Yangmei Chem | China national standards | MT | 522.33 | USD | 20251107 |
| Shanxi Yangmei Chem | China national standards | MT | 521.85 | USD | 20251105 |
| Shanxi Yangmei Chem | China national standards | MT | 521.97 | USD | 20251104 |