| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1043.0 | USD | 20251018 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 958.43 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251018 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 986.62 | USD | 20251018 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 1310.8 | USD | 20251018 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1205.09 | USD | 20251018 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1212.14 | USD | 20251018 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 1043.0 | USD | 20251018 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1205.09 | USD | 20251018 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1205.09 | USD | 20251018 |