| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1470.92 | USD | 20250820 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1442.9 | USD | 20250820 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 1457.42 | USD | 20250819 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1471.43 | USD | 20250819 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1443.41 | USD | 20250819 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1444.15 | USD | 20250818 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 1458.18 | USD | 20250818 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1472.2 | USD | 20250818 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1443.16 | USD | 20250816 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1443.16 | USD | 20250816 |