| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1124.35 | USD | 20250928 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1183.38 | USD | 20250928 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1089.22 | USD | 20250928 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1176.35 | USD | 20250927 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 983.81 | USD | 20250927 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1011.92 | USD | 20250927 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1011.92 | USD | 20250927 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 1011.92 | USD | 20250927 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1011.92 | USD | 20250927 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1011.92 | USD | 20250927 |