| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 395.28 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.93 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.05 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.22 | USD | 20251107 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 423.51 | USD | 20251107 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 367.05 | USD | 20251107 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.51 | USD | 20251107 |
| China national standards | MT | 423.51 | USD | 20251107 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.28 | USD | 20251107 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 331.75 | USD | 20251107 |