| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhongke Taihua | China national standards | MT | 945.37 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 888.93 | USD | 20251119 |
| Shandong Hanyue Chem | China national standards | MT | 705.5 | USD | 20251119 |
| Shanghai Ronghe Chem | China national standards | MT | 790.16 | USD | 20251119 |
| Shandong Hanyue Chem | China national standards | MT | 705.5 | USD | 20251119 |
| Shandong Wonfull Petro | China national standards | MT | 705.5 | USD | 20251119 |
| Jinan Angxin Chem | China national standards | MT | 776.05 | USD | 20251119 |
| Shandong Jinwen Chem | China national standards | MT | 853.65 | USD | 20251119 |
| Changzhou Guoshun Chem | China national standards | MT | 1128.8 | USD | 20251119 |
| Shandong Zhongke Taihua | China national standards | MT | 945.37 | USD | 20251119 |