| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 338.91 | USD | 20251117 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 395.39 | USD | 20251117 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 353.03 | USD | 20251117 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.63 | USD | 20251117 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 395.39 | USD | 20251117 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 409.51 | USD | 20251117 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 353.03 | USD | 20251117 |
| China national standards | MT | 395.39 | USD | 20251117 | |
| China national standards | MT | 423.63 | USD | 20251117 | |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 367.15 | USD | 20251117 |