| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1116.62 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1116.62 | USD | 20251205 |
| Qingdao Shengze Chem | China national standards | MT | 819.8 | USD | 20251205 |
| Qingdao Shengze Chem | China national standards | MT | 819.8 | USD | 20251205 |
| Lihuayi Weiyuan Chem | China national standards | MT | 876.34 | USD | 20251205 |
| Jinan Angxin Chem | China national standards | MT | 918.74 | USD | 20251205 |
| Beijing Yanshan Petro | China national standards | MT | 975.28 | USD | 20251205 |
| Shandong Qiangsen Chem | China national standards | MT | 932.88 | USD | 20251205 |
| Jinan Qi Mat | China national standards | MT | 805.67 | USD | 20251205 |
| Shandong Hongyang Chem | China national standards | MT | 908.85 | USD | 20251205 |