| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Zixu Mat | China national standards | MT | 1238.48 | USD | 20250930 |
| Shandong Energy | China national standards | MT | 788.12 | USD | 20250930 |
| Shandong Yeyang Chem | China national standards | MT | 774.05 | USD | 20250930 |
| Shandong Energy | China national standards | MT | 788.12 | USD | 20250930 |
| CNPC | China national standards | MT | 802.2 | USD | 20250930 |
| Shandong Yeyang Chem | China national standards | MT | 774.05 | USD | 20250930 |
| Shandong Yeyang Chem | China national standards | MT | 774.05 | USD | 20250930 |
| CNPC | China national standards | MT | 802.2 | USD | 20250930 |
| Wanhua Chem | China national standards | MT | 759.97 | USD | 20250930 |
| Sinopec | China national standards | MT | 774.05 | USD | 20250930 |