| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.12 | USD | 20251024 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.12 | USD | 20251024 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.62 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.62 | USD | 20251023 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 373.67 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.52 | USD | 20251023 |
| China national standards | MT | 423.02 | USD | 20251023 | |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 369.44 | USD | 20251023 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.82 | USD | 20251023 |
| China national standards | MT | 369.44 | USD | 20251023 |