| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 336.39 | USD | 20250807 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 350.41 | USD | 20250807 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 350.41 | USD | 20250807 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 546.64 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.43 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 350.41 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.45 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.46 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.1 | USD | 20250806 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 336.09 | USD | 20250806 |