| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 932.88 | USD | 20251206 |
| Shandong Xima | China national standards | MT | 890.47 | USD | 20251206 |
| Qingdao Shengze Chem | China national standards | MT | 805.67 | USD | 20251206 |
| Jinan Qi Mat | China national standards | MT | 805.67 | USD | 20251206 |
| Shandong Qiangsen Chem | China national standards | MT | 932.88 | USD | 20251206 |
| Shandong Qiangsen Chem | China national standards | MT | 932.88 | USD | 20251206 |
| Lihuayi Weiyuan Chem | China national standards | MT | 890.47 | USD | 20251206 |
| Lihuayi Weiyuan Chem | China national standards | MT | 805.67 | USD | 20251206 |
| Beijing Yanshan Petro | China national standards | MT | 805.67 | USD | 20251206 |
| Shandong Qiangsen Chem | China national standards | MT | 932.88 | USD | 20251206 |