| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1101.87 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 1257.26 | USD | 20251128 |
| Shandong Hongyang Chem | China national standards | MT | 1130.12 | USD | 20251128 |
| Lihuayi Shandong | China national standards | MT | 897.03 | USD | 20251128 |
| Shandong Aite Chem | China national standards | MT | 1271.38 | USD | 20251128 |
| Shandong Zhenkun | China national standards | MT | 1080.68 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 1285.51 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 1108.93 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 1080.68 | USD | 20251128 |
| Shandong Jinwen Chem | China national standards | MT | 1045.36 | USD | 20251128 |