| Vendor | Spec | Unit | Price | Currency | Date |
| Aite Zhejiang | China national standards | MT | 987.58 | USD | 20251101 |
| CNPC | China national standards | MT | 804.18 | USD | 20251101 |
| Shandong Yeyang Chem | China national standards | MT | 775.96 | USD | 20251101 |
| Shandong Energy | China national standards | MT | 790.07 | USD | 20251101 |
| Sinopec | China national standards | MT | 775.96 | USD | 20251101 |
| Wanhua Chem | China national standards | MT | 761.85 | USD | 20251101 |
| Jinan Zhongyin Mat | China national standards | MT | 733.63 | USD | 20251031 |
| Jinan Zhongyin Mat | China national standards | MT | 733.63 | USD | 20251031 |
| Shandong Yuxuan Chem | China national standards | MT | 846.5 | USD | 20251031 |
| Luxi Chem | China national standards | MT | 832.39 | USD | 20251031 |