| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 350.16 | USD | 20250804 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 350.16 | USD | 20250804 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 335.68 | USD | 20250801 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 349.67 | USD | 20250801 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 349.67 | USD | 20250801 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 363.66 | USD | 20250801 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 384.64 | USD | 20250801 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 391.63 | USD | 20250801 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 419.6 | USD | 20250801 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 419.6 | USD | 20250801 |