| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 932.74 | USD | 20251201 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 932.74 | USD | 20251201 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1681.76 | USD | 20251201 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1088.2 | USD | 20251201 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 989.27 | USD | 20251201 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 953.94 | USD | 20251201 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 975.14 | USD | 20251201 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 989.27 | USD | 20251201 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 975.14 | USD | 20251201 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 953.94 | USD | 20251201 |