| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1040.38 | USD | 20250919 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 984.14 | USD | 20250919 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 998.2 | USD | 20250919 |
| Shandong Haili Chemical Industry Co., Ltd. | China national standards | MT | 1195.03 | USD | 20250919 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 998.2 | USD | 20250919 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 913.85 | USD | 20250919 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 899.79 | USD | 20250919 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 913.85 | USD | 20250919 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1124.73 | USD | 20250919 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1096.61 | USD | 20250919 |