| Vendor | Spec | Unit | Price | Currency | Date |
| 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 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 381.01 | USD | 20251106 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.17 | USD | 20251106 |
| China national standards | MT | 409.23 | USD | 20251106 | |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 416.28 | USD | 20251106 |
| China national standards | MT | 296.34 | USD | 20251106 | |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 330.21 | USD | 20251106 |