| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Changzhou Yihan Chemical Co., Ltd. | China national standards | MT | 396.12 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 325.38 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.68 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 389.04 | USD | 20251211 |
| 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 | 325.38 | USD | 20251211 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 304.16 | USD | 20251211 |