| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mingyu | China national standards | MT | 925.29 | USD | 20251129 |
| Lihuayi Shandong | China national standards | MT | 713.39 | USD | 20251129 |
| Qingdao Shengze Chem | China national standards | MT | 713.39 | USD | 20251129 |
| Luxi Chem | China national standards | MT | 819.34 | USD | 20251129 |
| Qingdao Shengze Chem | China national standards | MT | 713.39 | USD | 20251129 |
| CNPC | China national standards | MT | 805.21 | USD | 20251129 |
| Liaocheng Yuanze Chem | China national standards | MT | 861.72 | USD | 20251129 |
| Shandong Yuxuan Chem | China national standards | MT | 833.46 | USD | 20251129 |
| Luxi Chem | China national standards | MT | 720.45 | USD | 20251129 |
| Shandong Laya Chem | China national standards | MT | 791.08 | USD | 20251129 |