| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1101.79 | USD | 20251202 |
| Shandong Huize Chem | China national standards | MT | 1045.29 | USD | 20251202 |
| Shandong Fusheng | China national standards | MT | 819.28 | USD | 20251202 |
| Aite Zhejiang | China national standards | MT | 1031.16 | USD | 20251202 |
| Shandong Hongyang Chem | China national standards | MT | 1130.04 | USD | 20251202 |
| Shandong Huize Chem | China national standards | MT | 1045.29 | USD | 20251202 |
| Shandong Zhenkun | China national standards | MT | 1080.6 | USD | 20251202 |
| Shandong Jinwen Chem | China national standards | MT | 1045.8 | USD | 20251201 |
| Shandong Langchem | China national standards | MT | 1286.06 | USD | 20251201 |
| Shandong Langchem | China national standards | MT | 1257.79 | USD | 20251201 |