| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 988.78 | USD | 20251202 |
| Jinan Angxin Chem | China national standards | MT | 946.41 | USD | 20251202 |
| Shandong Zhenkun | China national standards | MT | 1080.6 | USD | 20251202 |
| Shandong Langchem | China national standards | MT | 1080.6 | USD | 20251202 |
| Shandong Yihe Chem | China national standards | MT | 819.28 | USD | 20251202 |
| Shandong Langchem | China national standards | MT | 1285.42 | USD | 20251202 |
| Shandong Langchem | China national standards | MT | 1101.79 | USD | 20251202 |
| Shandong Langchem | China national standards | MT | 1101.79 | USD | 20251202 |
| Aite Zhejiang | China national standards | MT | 1031.16 | USD | 20251202 |
| Shandong Yihe Chem | China national standards | MT | 819.28 | USD | 20251202 |