| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical 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 | |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 423.63 | USD | 20251117 |
| China national standards | MT | 324.79 | USD | 20251117 | |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 324.79 | USD | 20251117 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 367.15 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.33 | USD | 20251117 |
| China national standards | MT | 423.63 | USD | 20251117 |