| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 690.07 | USD | 20251013 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 690.07 | USD | 20251013 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 718.24 | USD | 20251013 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.67 | USD | 20251012 |
| 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 |