| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 391.82 | USD | 20250717 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 335.54 | USD | 20250716 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 405.45 | USD | 20250716 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 419.43 | USD | 20250716 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 419.43 | USD | 20250716 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 391.47 | USD | 20250716 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 384.48 | USD | 20250716 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 349.52 | USD | 20250716 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 363.5 | USD | 20250716 |