| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 743.11 | USD | 20250818 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 686.55 | USD | 20250817 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 742.6 | USD | 20250817 |
| Anhui Ruibai New Material Co., Ltd. | China national standards | MT | 686.55 | USD | 20250816 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 686.55 | USD | 20250816 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 742.6 | USD | 20250816 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 686.55 | USD | 20250815 |
| Anhui Ruibai New Material Co., Ltd. | China national standards | MT | 812.65 | USD | 20250815 |
| Anhui Ruibai New Material Co., Ltd. | China national standards | MT | 686.55 | USD | 20250815 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 686.55 | USD | 20250815 |