| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 790.34 | USD | 20251118 |
| Jinan Aochen Chem | China national standards | MT | 1199.62 | USD | 20251118 |
| Zibo Lishuo Chem | China national standards | MT | 846.79 | USD | 20251118 |
| Wanhua Yantai | China national standards | MT | 896.18 | USD | 20251118 |
| Wanhua Yantai | China national standards | MT | 790.34 | USD | 20251118 |
| Jinan Qi Mat | China national standards | MT | 1030.26 | USD | 20251118 |
| Shandong Xima | China national standards | MT | 790.34 | USD | 20251118 |
| Sinopec | China national standards | MT | 790.34 | USD | 20251118 |
| Sinopec | China national standards | MT | 790.34 | USD | 20251118 |
| Sinopec | China national standards | MT | 790.34 | USD | 20251118 |