| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Xinbo Chem | China national standards | MT | 1157.11 | USD | 20251111 |
| Shandong Junfeng | China national standards | MT | 987.78 | USD | 20251111 |
| Shandong Mingyu | China national standards | MT | 1051.28 | USD | 20251111 |
| Jinan Qi Mat | China national standards | MT | 874.89 | USD | 20251111 |
| Unknown | China national standards | MT | 889.0 | USD | 20251111 |
| Beijing Yanshan Petro | China national standards | MT | 1171.22 | USD | 20251111 |
| Shandong Hongyang Chem | China national standards | MT | 907.35 | USD | 20251111 |
| Shandong Zhiheng | China national standards | MT | 907.35 | USD | 20251111 |
| Jinan Angxin Chem | China national standards | MT | 917.22 | USD | 20251111 |
| Beijing Yanshan Petro | China national standards | MT | 907.35 | USD | 20251111 |