| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Weifang Longmao Chem | China national standards | MT | USD | 20260105 | |
| Weifang Yaohe Chem | China national standards | MT | USD | 20260104 | |
| Shandong Zhiheng | China national standards | MT | USD | 20251211 | |
| Shandong Hongyang Chem | China national standards | MT | USD | 20251211 | |
| Weifang Sutong Chem | China national standards | MT | USD | 20251211 | |
| Shouguang ZixuChem | Industrial Grade | MT | USD | 20251211 | |
| Weifang Longmao Chem | Industrial Grade | MT | USD | 20251211 | |
| Shandong Hongyang Chem | China national standards | MT | USD | 20251210 | |
| Shandong Zhiheng | China national standards | MT | USD | 20251210 | |
| Shouguang ZixuChem | Industrial Grade | MT | USD | 20251210 |