| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.89 | USD | 20251111 |
| China national standards | MT | 324.56 | USD | 20251111 | |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 324.56 | USD | 20251111 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 395.17 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.11 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.94 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.83 | USD | 20251110 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 374.0 | USD | 20251110 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.17 | USD | 20251110 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.39 | USD | 20251110 |