| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chem | China national standards | MT | 1155.37 | USD | 20251020 |
| Shandong Langchem | China national standards | MT | 1127.19 | USD | 20251020 |
| Shandong Langchem | China national standards | MT | 1106.05 | USD | 20251020 |
| Shandong Langchem | China national standards | MT | 1113.1 | USD | 20251020 |
| Shandong Langchem | China national standards | MT | 1113.1 | USD | 20251020 |
| Shandong Langchem | China national standards | MT | 1099.01 | USD | 20251020 |
| Lihuayi Weiyuan Chem | China national standards | MT | 993.34 | USD | 20251020 |
| Shandong Zhiheng | China national standards | MT | 1113.1 | USD | 20251020 |
| Beijing Yanshan Petro | China national standards | MT | 1113.1 | USD | 20251020 |
| Shandong Hongyang Chem | China national standards | MT | 1014.47 | USD | 20251020 |