| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.06 | USD | 20250812 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.06 | USD | 20250812 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 336.05 | USD | 20250812 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 350.05 | USD | 20250812 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 350.05 | USD | 20250812 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 336.11 | USD | 20250811 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.13 | USD | 20250811 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.13 | USD | 20250811 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.12 | USD | 20250811 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.14 | USD | 20250811 |