| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.94 | USD | 20251028 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 409.28 | USD | 20251028 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 369.76 | USD | 20251028 |
| China national standards | MT | 369.76 | USD | 20251028 | |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 352.83 | USD | 20251028 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 352.83 | USD | 20251028 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 423.39 | USD | 20251028 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.39 | USD | 20251028 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.17 | USD | 20251028 |
| China national standards | MT | 423.39 | USD | 20251028 |