| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 712.55 | USD | 20251119 |
| Zibo Lishuo Chem | China national standards | MT | 917.15 | USD | 20251119 |
| Shandong Aite Chem | China national standards | MT | 945.37 | USD | 20251119 |
| Shandong Aite Chem | China national standards | MT | 1241.68 | USD | 20251119 |
| Luxi Chem | China national standards | MT | 846.6 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 712.55 | USD | 20251119 |
| Shandong Aite Chem | China national standards | MT | 1114.69 | USD | 20251119 |
| Shandong Qiancheng | China national standards | MT | 846.6 | USD | 20251119 |
| Shandong Energy | China national standards | MT | 790.16 | USD | 20251119 |
| Shandong Aite Chem | China national standards | MT | 1072.36 | USD | 20251119 |