| Vendor | Spec | Unit | Price | Currency | Date |
| Liaocheng Yuanze Chem | China national standards | MT | 818.34 | USD | 20251121 |
| Shandong Mingyu | China national standards | MT | 924.16 | USD | 20251121 |
| Qingdao Shengze Chem | China national standards | MT | 712.52 | USD | 20251121 |
| Luxi Chem | China national standards | MT | 818.34 | USD | 20251121 |
| Nantong Zhonghe Chem | China national standards | MT | 804.23 | USD | 20251121 |
| Shandong Yuxuan Chem | China national standards | MT | 832.45 | USD | 20251121 |
| Jinan Zhongyin Mat | China national standards | MT | 712.52 | USD | 20251121 |
| Lihuayi Shandong | China national standards | MT | 759.08 | USD | 20251121 |
| Qingdao Shengze Chem | China national standards | MT | 712.52 | USD | 20251121 |
| Shandong Yuanhe Chem | China national standards | MT | 874.78 | USD | 20251121 |