| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 365.91 | USD | 20251003 | |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.8 | USD | 20251003 |
| China national standards | MT | 365.91 | USD | 20251002 | |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 365.91 | USD | 20251002 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.8 | USD | 20251002 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 365.91 | USD | 20251001 |
| China national standards | MT | 365.91 | USD | 20251001 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.06 | USD | 20251001 |
| China national standards | MT | 422.21 | USD | 20251001 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.21 | USD | 20251001 |