| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Guanjiu Energy | China national standards | MT | 1076.63 | USD | 20250930 |
| Wuhan Hengjiu Chem | China national standards | MT | 886.64 | USD | 20250930 |
| Qingdao Shengze Chem | China national standards | MT | 971.08 | USD | 20250930 |
| Qingdao Shengze Chem | China national standards | MT | 971.08 | USD | 20250930 |
| Nantong Zhonghe Chem | China national standards | MT | 949.97 | USD | 20250930 |
| Nantong Zhonghe Chem | China national standards | MT | 957.01 | USD | 20250930 |
| Jinan Xinbo Chem | China national standards | MT | 1125.89 | USD | 20250930 |
| Hualu Holdings | China national standards | MT | 1182.18 | USD | 20250930 |
| Shandong Aite Chem | China national standards | MT | 1097.74 | USD | 20250930 |
| Shandong Aite Chem | China national standards | MT | 1125.89 | USD | 20250930 |