| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 329.54 | USD | 20251013 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.79 | USD | 20251013 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 328.14 | USD | 20251013 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 337.99 | USD | 20251013 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 337.99 | USD | 20251013 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 337.99 | USD | 20251013 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 366.16 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.16 | USD | 20251013 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.16 | USD | 20251013 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.49 | USD | 20251013 |