| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Energy | China national standards | MT | 790.34 | USD | 20251118 |
| Zaozhuang Yitai | China national standards | MT | 1058.48 | USD | 20251118 |
| Shandong Hongyang Chem | China national standards | MT | 959.69 | USD | 20251118 |
| Shandong Yeyang Chem | China national standards | MT | 804.45 | USD | 20251118 |
| Wanhua Chem | China national standards | MT | 762.11 | USD | 20251118 |
| Shandong Xima | China national standards | MT | 748.0 | USD | 20251118 |
| Liao Jinxinda | China national standards | MT | 719.77 | USD | 20251118 |
| Luxi Chem | China national standards | MT | 1058.48 | USD | 20251118 |
| Lihuayi Shandong | China national standards | MT | 762.11 | USD | 20251118 |
| Luxi Chem | China national standards | MT | 733.88 | USD | 20251118 |