| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 396.12 | USD | 20251211 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 396.12 | USD | 20251211 |
| Changzhou Yihan Chemical Co., Ltd. | China national standards | MT | 396.12 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 353.68 | USD | 20251211 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.97 | USD | 20251211 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 304.16 | USD | 20251211 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 396.12 | USD | 20251211 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 304.16 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |