| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1062.87 | USD | 20250911 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1098.07 | USD | 20250911 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 802.43 | USD | 20250911 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.59 | USD | 20250911 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.59 | USD | 20250911 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1098.07 | USD | 20250911 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1013.6 | USD | 20250911 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.59 | USD | 20250911 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.59 | USD | 20250911 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.59 | USD | 20250911 |