| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | Industrial Grade | MT | 816.35 | USD | 20251011 |
| Qingdao Shengze Chem | China national standards | MT | 816.35 | USD | 20251011 |
| Jinan Pulaihua Chem | China national standards | MT | 1111.92 | USD | 20251011 |
| Jinan Pulaihua Chem | China national standards | MT | 1111.92 | USD | 20251011 |
| Shandong Wells Chem | China national standards | MT | 731.9 | USD | 20251011 |
| Shandong Wells Chem | China national standards | MT | 731.9 | USD | 20251011 |
| Jinan Jinrihe Chem | China national standards | MT | 844.5 | USD | 20251011 |
| Jinan Jinrihe Chem | China national standards | MT | 844.5 | USD | 20251011 |
| Jinan Jinrihe Chem | China national standards | MT | 788.2 | USD | 20251011 |
| Jinan Jinrihe Chem | China national standards | MT | 788.2 | USD | 20251011 |