| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1196.12 | USD | 20250828 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1012.54 | USD | 20250827 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 984.42 | USD | 20250827 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 984.42 | USD | 20250827 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 984.42 | USD | 20250827 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 984.42 | USD | 20250827 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 984.42 | USD | 20250827 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 970.35 | USD | 20250827 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1040.67 | USD | 20250827 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 970.35 | USD | 20250827 |