| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 956.55 | USD | 20250929 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 787.74 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1139.42 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1055.02 | USD | 20250929 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 984.68 | USD | 20250929 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 787.74 | USD | 20250929 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 815.88 | USD | 20250929 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 787.05 | USD | 20250928 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 815.16 | USD | 20250928 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 983.81 | USD | 20250928 |