| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 350.12 | USD | 20250811 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 350.12 | USD | 20250811 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.24 | USD | 20250809 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.25 | USD | 20250809 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.26 | USD | 20250809 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.26 | USD | 20250808 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.25 | USD | 20250808 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.24 | USD | 20250808 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 336.22 | USD | 20250808 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 350.23 | USD | 20250808 |