| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 393.66 | USD | 20250919 |
| China national standards | MT | 421.77 | USD | 20250919 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 421.77 | USD | 20250919 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 407.72 | USD | 20250919 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 351.48 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.54 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.48 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 386.63 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 393.66 | USD | 20250919 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 421.77 | USD | 20250919 |