| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1188.0 | USD | 20250919 |
| Shandong Hongyang Chem | China national standards | MT | 1188.0 | USD | 20250919 |
| Changzhou Juyun Mat | China national standards | MT | 1349.68 | USD | 20250919 |
| Changzhou Juyun Mat | China national standards | MT | 1335.62 | USD | 20250919 |
| Changzhou Juyun Mat | China national standards | MT | 1349.68 | USD | 20250919 |
| CNPC | China national standards | MT | 1209.09 | USD | 20250919 |
| Sinopec | China national standards | MT | 1209.09 | USD | 20250919 |
| Shandong Zhiheng | China national standards | MT | 1166.91 | USD | 20250919 |
| Shandong Qiangsen Chem | China national standards | MT | 1041.01 | USD | 20250918 |
| Qingdao Chengxin Chem | China national standards | MT | 956.6 | USD | 20250918 |