| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chem | China national standards | MT | 381.63 | USD | 20251207 |
| Yankuang Guotai Chem | China national standards | MT | 381.63 | USD | 20251207 |
| Shandong Zhenkun | China national standards | MT | 424.03 | USD | 20251207 |
| Shandong Hualu | China national standards | MT | 424.03 | USD | 20251207 |
| Shandong Jinshenrun Chem | China national standards | MT | 395.77 | USD | 20251207 |
| Shandong Zhenkun | China national standards | MT | 395.77 | USD | 20251207 |
| Shanghai Huayi | China national standards | MT | 424.03 | USD | 20251207 |
| Shandong Hualu | China national standards | MT | 395.77 | USD | 20251207 |
| Hebei Pengfa Chem | China national standards | MT | 316.61 | USD | 20251207 |
| Henan Longyu | China national standards | MT | 303.89 | USD | 20251206 |