| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1172.42 | USD | 20251202 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1327.8 | USD | 20251202 |
| CNPC | China national standards | MT | 1214.79 | USD | 20251202 |
| Shandong Hongyang Chem | China national standards | MT | 1193.6 | USD | 20251202 |
| Sinopec | China national standards | MT | 1214.79 | USD | 20251202 |
| Shaanxi Yanchang Petro | China national standards | MT | 889.91 | USD | 20251202 |
| Shandong Langchem | China national standards | MT | 1299.55 | USD | 20251202 |
| Jinan Qi Mat | China national standards | MT | 889.91 | USD | 20251202 |
| Shandong Hanyue Chem | China national standards | MT | 932.28 | USD | 20251202 |
| Shandong Yuhuang Chem | China national standards | MT | 896.97 | USD | 20251202 |