| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 331.8 | USD | 20251115 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 367.1 | USD | 20251115 |
| China national standards | MT | 395.34 | USD | 20251115 | |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.57 | USD | 20251115 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.57 | USD | 20251115 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.1 | USD | 20251115 |
| China national standards | MT | 324.74 | USD | 20251115 | |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.98 | USD | 20251115 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.28 | USD | 20251115 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 328.98 | USD | 20251115 |