| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 1069.56 | USD | 20250925 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 1294.74 | USD | 20250925 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 985.12 | USD | 20250925 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1013.27 | USD | 20250925 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1013.27 | USD | 20250925 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 1013.27 | USD | 20250925 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1177.93 | USD | 20250925 |
| Dongying Huatai Chemical Group Co., Ltd. | China national standards | MT | 1210.3 | USD | 20250925 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1210.3 | USD | 20250925 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1203.26 | USD | 20250925 |