| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1096.24 | USD | 20250926 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1096.24 | USD | 20250926 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 997.86 | USD | 20250926 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1018.95 | USD | 20250926 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 997.86 | USD | 20250926 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1040.03 | USD | 20250926 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 983.81 | USD | 20250926 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 1047.05 | USD | 20250926 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 1047.05 | USD | 20250926 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 1047.05 | USD | 20250926 |