| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jiaen Chem | China national standards | MT | 332.14 | USD | 20251210 |
| Zaozhuang Yitai | China national standards | MT | 395.74 | USD | 20251210 |
| Shandong Jinling Chem | China national standards | MT | 228.97 | USD | 20251210 |
| Shandong Jinling Chem | China national standards | MT | 228.97 | USD | 20251210 |
| Shandong Jinling Chem | China national standards | MT | 228.97 | USD | 20251210 |
| Shandong Jinling Chem | China national standards | MT | 228.97 | USD | 20251210 |
| Luxi Chem | China national standards | MT | 339.21 | USD | 20251210 |
| Shandong Huize Chem | China national standards | MT | 295.39 | USD | 20251210 |
| Jinan Zhongyin Mat | China national standards | MT | 238.86 | USD | 20251210 |
| Jinan Zhongyin Mat | China national standards | MT | 238.86 | USD | 20251210 |