| Vendor | Spec | Unit | Price | Currency | Date |
| Qinghai Yanhu Industry Co., Ltd. | China national standards | MT | 1125.62 | USD | 20250901 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 872.35 | USD | 20250901 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 872.87 | USD | 20250830 |
| Zhejiang Dayang Biotech Group Co., Ltd. | China national standards | MT | 1098.13 | USD | 20250829 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 872.87 | USD | 20250829 |
| Zhejiang Dayang Biotech Group Co., Ltd. | China national standards | MT | 1097.62 | USD | 20250828 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 872.47 | USD | 20250828 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 871.91 | USD | 20250827 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 899.03 | USD | 20250826 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 870.93 | USD | 20250826 |