| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 423.24 | USD | 20251027 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.24 | USD | 20251027 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 329.91 | USD | 20251026 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 328.5 | USD | 20251026 |
| China national standards | MT | 296.07 | USD | 20251026 | |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 408.87 | USD | 20251026 |
| China national standards | MT | 408.87 | USD | 20251026 | |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.12 | USD | 20251025 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 328.5 | USD | 20251025 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 369.39 | USD | 20251025 |