| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mingyu | China national standards | MT | 925.76 | USD | 20251210 |
| Shandong Junfeng | China national standards | MT | 2162.45 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 742.02 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 742.02 | USD | 20251210 |
| Luxi Chem | China national standards | MT | 706.68 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 742.02 | USD | 20251210 |
| Shaanxi Petro Yanan | China national standards | MT | 749.08 | USD | 20251210 |
| Jinan Zhongyin Mat | China national standards | MT | 819.75 | USD | 20251210 |
| Shandong Yeyang Chem | China national standards | MT | 805.62 | USD | 20251210 |
| Shaanxi Petro Yanan | China national standards | MT | 1064.27 | USD | 20251210 |