| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chem | China national standards | MT | 2821.87 | USD | 20251121 |
| Shandong Zhenkun | China national standards | MT | 1453.26 | USD | 20251121 |
| Shandong Hongyang Chem | China national standards | MT | 1904.76 | USD | 20251121 |
| Shandong Yuxuan Chem | China national standards | MT | 1762.92 | USD | 20251120 |
| Shandong Dongyue | China national standards | MT | 1833.44 | USD | 20251120 |
| Liaocheng Yuanze Chem | China national standards | MT | 1537.27 | USD | 20251120 |
| Jinan Jinrihe Chem | China national standards | MT | 2820.68 | USD | 20251120 |
| Shandong Hongyang Chem | China national standards | MT | 1903.96 | USD | 20251120 |
| Shandong Zhenkun | China national standards | MT | 1452.65 | USD | 20251120 |
| Shandong Hongyang Chem | China national standards | MT | 1904.84 | USD | 20251119 |