| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 304.16 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.68 | USD | 20251211 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 367.48 | USD | 20251210 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 367.48 | USD | 20251210 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.87 | USD | 20251210 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.61 | USD | 20251210 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 381.61 | USD | 20251210 |