| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 987.65 | USD | 20251121 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 952.38 | USD | 20251121 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251121 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 903.0 | USD | 20251121 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251121 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251121 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251121 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.33 | USD | 20251121 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 924.16 | USD | 20251121 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251121 |