| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.6 | USD | 20250915 |
| Anhui Ruibai New Material Co., Ltd. | China national standards | MT | 689.6 | USD | 20250915 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 745.89 | USD | 20250915 |
| Anhui Ruibai New Material Co., Ltd. | China national standards | MT | 802.18 | USD | 20250915 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.6 | USD | 20250915 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.6 | USD | 20250915 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 746.28 | USD | 20250914 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.96 | USD | 20250914 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.96 | USD | 20250913 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 746.28 | USD | 20250913 |