| Vendor | Spec | Unit | Price | Currency | Date |
| Hunan JinyuChem | China national standards | MT | 806.38 | USD | 20251211 |
| Hunan JinyuChem | China national standards | MT | 805.61 | USD | 20251203 |
| Hunan JinyuChem | China national standards | MT | 805.55 | USD | 20251201 |
| Hunan JinyuChem | China national standards | MT | 805.21 | USD | 20251128 |
| Hunan JinyuChem | China national standards | MT | 805.32 | USD | 20251127 |
| Hunan JinyuChem | China national standards | MT | 805.13 | USD | 20251126 |
| Hunan JinyuChem | China national standards | MT | 840.1 | USD | 20251115 |
| Hunan JinyuChem | China national standards | MT | 840.0 | USD | 20251112 |
| Hunan JinyuChem | China national standards | MT | 818.28 | USD | 20251031 |
| Hunan JinyuChem | China national standards | MT | 817.49 | USD | 20251017 |