| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 389.25 | USD | 20251120 | |
| China national standards | MT | 324.38 | USD | 20251120 | |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 331.43 | USD | 20251120 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 344.12 | USD | 20251120 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 344.12 | USD | 20251120 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 324.38 | USD | 20251120 |
| China national standards | MT | 394.89 | USD | 20251120 | |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 344.12 | USD | 20251120 |
| China national standards | MT | 423.1 | USD | 20251120 | |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.69 | USD | 20251120 |