| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1209.09 | USD | 20250919 |
| Dongying Huatai Chemical Group Co., Ltd. | China national standards | MT | 1209.09 | USD | 20250919 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1012.26 | USD | 20250919 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1012.26 | USD | 20250919 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1012.26 | USD | 20250919 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1012.26 | USD | 20250919 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1265.32 | USD | 20250919 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1138.79 | USD | 20250919 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1138.79 | USD | 20250919 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1138.79 | USD | 20250919 |