| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 900.8 | USD | 20251011 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 900.8 | USD | 20251011 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 985.25 | USD | 20251011 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 999.32 | USD | 20251011 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 999.32 | USD | 20251011 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 999.32 | USD | 20251011 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 999.32 | USD | 20251011 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 985.25 | USD | 20251011 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1674.92 | USD | 20251011 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1674.92 | USD | 20251011 |