| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 1048.04 | USD | 20250918 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 1048.04 | USD | 20250918 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 1048.04 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 998.8 | USD | 20250918 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 984.74 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1041.01 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1041.01 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 998.8 | USD | 20250918 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 886.26 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 970.67 | USD | 20250918 |