| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 386.98 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.87 | USD | 20250828 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 337.51 | USD | 20250827 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 351.58 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.58 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.64 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 386.74 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 393.77 | USD | 20250827 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 351.58 | USD | 20250827 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 351.58 | USD | 20250827 |