| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.34 | USD | 20251125 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 352.98 | USD | 20251125 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.22 | USD | 20251125 |
| China national standards | MT | 389.69 | USD | 20251125 | |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 324.74 | USD | 20251125 |
| China national standards | MT | 324.74 | USD | 20251125 | |
| China national standards | MT | 423.57 | USD | 20251125 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.57 | USD | 20251125 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 409.45 | USD | 20251125 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.28 | USD | 20251125 |