| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Haili Chemical Industry Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250925 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 985.12 | USD | 20250925 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.05 | USD | 20250925 |
| China national standards | MT | 971.05 | USD | 20250925 | |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 886.61 | USD | 20250925 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1196.22 | USD | 20250925 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1196.22 | USD | 20250925 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 985.12 | USD | 20250925 |