| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 478.45 | USD | 20250828 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 562.88 | USD | 20250828 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 562.52 | USD | 20250827 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 492.21 | USD | 20250827 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 478.15 | USD | 20250827 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 568.92 | USD | 20250826 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 491.66 | USD | 20250826 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 561.89 | USD | 20250826 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 477.61 | USD | 20250826 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 491.84 | USD | 20250825 |