| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chem | China national standards | MT | 718.36 | USD | 20251015 |
| Jinan Jinrihe Chem | China national standards | MT | 718.36 | USD | 20251015 |
| Zibo Qixiang Chem | China national standards | MT | 718.36 | USD | 20251015 |
| Jinan Jinrihe Chem | China national standards | MT | 732.45 | USD | 20251015 |
| Ningbo Zhetie Chem | China national standards | MT | 788.79 | USD | 20251015 |
| Shandong Zhongke Taihua | China national standards | MT | 943.73 | USD | 20251015 |
| Shandong Zhongke Taihua | China national standards | MT | 943.73 | USD | 20251015 |
| Shandong Zhongke Taihua | China national standards | MT | 943.73 | USD | 20251015 |
| Jinan Angxin Chem | China national standards | MT | 802.87 | USD | 20251015 |
| Shandong Wonfull Petro | China national standards | MT | 802.87 | USD | 20251015 |