| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.72 | USD | 20251128 |
| China national standards | MT | 296.66 | USD | 20251128 | |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 329.15 | USD | 20251128 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.72 | USD | 20251128 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.54 | USD | 20251128 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.16 | USD | 20251128 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 395.54 | USD | 20251128 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.42 | USD | 20251128 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 416.73 | USD | 20251128 |
| China national standards | MT | 395.54 | USD | 20251128 |