| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Wells Chem | China national standards | MT | 890.47 | USD | 20251207 |
| Shanghai Ronghe Chem | China national standards | MT | 848.07 | USD | 20251207 |
| Qingdao Shengze Chem | Industrial Grade | MT | 777.4 | USD | 20251207 |
| Qingdao Shengze Chem | China national standards | MT | 777.4 | USD | 20251207 |
| Tongling Jintai Chem | China national standards | MT | 777.4 | USD | 20251207 |
| Shandong Wells Chem | China national standards | MT | 777.4 | USD | 20251207 |
| Jinan Qi Mat | Industrial Grade | MT | 777.4 | USD | 20251207 |
| Jinan Qi Mat | Industrial Grade | MT | 777.4 | USD | 20251206 |
| Shandong Wells Chem | China national standards | MT | 777.4 | USD | 20251206 |
| Tongling Jintai Chem | China national standards | MT | 777.4 | USD | 20251206 |