| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 890.35 | USD | 20251201 |
| Jinan Aochen Chem | China national standards | MT | 847.95 | USD | 20251201 |
| Baozhen Shandong Chem | China national standards | MT | 749.02 | USD | 20251201 |
| Jinan Aochen Chem | China national standards | MT | 763.15 | USD | 20251201 |
| Jinan Aochen Chem | China national standards | MT | 763.15 | USD | 20251201 |
| Shandong Qiangsen Chem | China national standards | MT | 805.55 | USD | 20251201 |
| Shandong Yushuo Chem | China national standards | MT | 720.76 | USD | 20251201 |
| Shandong Shuojia Chem | China national standards | MT | 727.82 | USD | 20251201 |
| Shijiaz Bailong Chem | China national standards | MT | 777.29 | USD | 20251201 |
| Shandong Hanyue Chem | China national standards | MT | 706.62 | USD | 20251201 |