| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1300.37 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1335.71 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1336.01 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1300.67 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1335.61 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1300.28 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1334.86 | USD | 20251202 |
| Shandong Langchem | China national standards | MT | 1299.55 | USD | 20251202 |
| Shandong Langchem | China national standards | MT | 1335.52 | USD | 20251201 |
| Shandong Langchem | China national standards | MT | 1300.19 | USD | 20251201 |