| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 1267.48 | USD | 20251013 |
| Shandong Xima | China national standards | MT | 873.15 | USD | 20251013 |
| Shandong Qiangsen Chem | China national standards | MT | 887.24 | USD | 20251013 |
| Shandong Qiangsen Chem | China national standards | MT | 887.24 | USD | 20251013 |
| Zibo Zhongsheng Chem | China national standards | MT | 971.74 | USD | 20251013 |
| Shandong Haili Chem | China national standards | MT | 1267.48 | USD | 20251013 |
| Zibo Zhongsheng Chem | China national standards | MT | 1408.31 | USD | 20251013 |
| Xinjiang Tianli Petro | China national standards | MT | 1337.9 | USD | 20251013 |
| Yangmei Taihua Coke | China national standards | MT | 957.65 | USD | 20251013 |
| Shandong Fusheng | China national standards | MT | 887.24 | USD | 20251013 |