| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.5 | USD | 20250814 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 336.37 | USD | 20250813 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.46 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.43 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.42 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.4 | USD | 20250813 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 350.39 | USD | 20250813 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 350.39 | USD | 20250813 |
| Suqian Shunda Chemical Technology Co., Ltd. | China national standards | MT | 371.05 | USD | 20250812 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.05 | USD | 20250812 |