| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.23 | USD | 20250724 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 350.21 | USD | 20250724 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.22 | USD | 20250724 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.09 | USD | 20250723 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.07 | USD | 20250723 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 350.07 | USD | 20250723 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.08 | USD | 20250723 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.08 | USD | 20250723 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 420.09 | USD | 20250723 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 420.09 | USD | 20250723 |