| Vendor | Spec | Unit | Price | Currency | Date | 
| Qinghai Yanhu Industry Co., Ltd. | China national standards | MT | 1121.09 | USD | 20250819 | 
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 868.85 | USD | 20250819 | 
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 869.3 | USD | 20250818 | 
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 868.7 | USD | 20250816 | 
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 868.7 | USD | 20250815 | 
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 869.11 | USD | 20250814 | 
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 868.96 | USD | 20250813 | 
| Qinghai Yanhu Industry Co., Ltd. | China national standards | MT | 1120.17 | USD | 20250812 | 
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 868.13 | USD | 20250812 | 
| Shandong Chengshuo Chemical Co., Ltd. | China national standards | MT | 980.32 | USD | 20250811 |