| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 975.07 | USD | 20251208 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1681.65 | USD | 20251208 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 975.07 | USD | 20251208 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 946.81 | USD | 20251208 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 989.2 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.48 | USD | 20251208 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 953.87 | USD | 20251208 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 975.07 | USD | 20251208 |