| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1478.25 | USD | 20250830 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1450.09 | USD | 20250830 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1450.09 | USD | 20250829 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 1464.17 | USD | 20250829 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1478.25 | USD | 20250829 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1449.42 | USD | 20250828 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1449.42 | USD | 20250828 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 1463.49 | USD | 20250828 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1477.56 | USD | 20250828 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 1462.56 | USD | 20250827 |