| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 923.5 | USD | 20250728 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.13 | USD | 20250726 |
| Jinan Shengfeng Industry and Trade Co., Ltd. | China national standards | MT | 1036.14 | USD | 20250725 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.13 | USD | 20250725 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.57 | USD | 20250724 |
| Jinan Shengfeng Industry and Trade Co., Ltd. | China national standards | MT | 1036.63 | USD | 20250724 |
| Jinan Shengfeng Industry and Trade Co., Ltd. | China national standards | MT | 1036.21 | USD | 20250723 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.19 | USD | 20250723 |
| Jinan Shengfeng Industry and Trade Co., Ltd. | China national standards | MT | 1035.54 | USD | 20250722 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 937.59 | USD | 20250722 |