| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 763.0 | USD | 20251209 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 777.13 | USD | 20251209 |
| JIN Yimeng Group Co., Ltd. | China national standards | MT | 890.17 | USD | 20251209 |
| Liaocheng Jinxinda New Material Co., Ltd. | China national standards | MT | 657.03 | USD | 20251209 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 748.87 | USD | 20251209 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 734.74 | USD | 20251209 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 734.74 | USD | 20251209 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.74 | USD | 20251209 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 734.74 | USD | 20251209 |
| JIN Yimeng Group Co., Ltd. | China national standards | MT | 710.72 | USD | 20251209 |