| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.03 | USD | 20251018 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 408.74 | USD | 20251018 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.46 | USD | 20251017 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 369.28 | USD | 20251017 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 352.37 | USD | 20251017 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.84 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.37 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.46 | USD | 20251017 |
| Changzhou Yihan Chemical Co., Ltd. | China national standards | MT | 394.65 | USD | 20251017 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 408.74 | USD | 20251017 |