| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.08 | USD | 20250904 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 337.51 | USD | 20250903 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 379.7 | USD | 20250903 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 393.77 | USD | 20250903 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 386.74 | USD | 20250903 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.64 | USD | 20250903 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 337.6 | USD | 20250902 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.74 | USD | 20250902 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 386.84 | USD | 20250902 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 393.87 | USD | 20250902 |