| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1057.29 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 966.26 | USD | 20250806 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.23 | USD | 20250806 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 840.23 | USD | 20250806 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1092.3 | USD | 20250806 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1008.28 | USD | 20250806 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1092.3 | USD | 20250806 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1092.3 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1057.93 | USD | 20250805 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1085.95 | USD | 20250805 |