| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.67 | USD | 20251012 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 745.97 | USD | 20251012 |
| JIN Yimeng Group Co., Ltd. | China national standards | MT | 717.82 | USD | 20251012 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.67 | USD | 20251012 |
| JIN Yimeng Group Co., Ltd. | China national standards | MT | 745.97 | USD | 20251012 |
| JIN Yimeng Group Co., Ltd. | China national standards | MT | 689.67 | USD | 20251012 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 760.05 | USD | 20251011 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 703.75 | USD | 20251011 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 745.97 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 851.54 | USD | 20251011 |