| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1009.51 | USD | 20250818 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1093.63 | USD | 20250818 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1093.63 | USD | 20250818 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1093.63 | USD | 20250818 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 826.67 | USD | 20250817 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.69 | USD | 20250817 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 826.67 | USD | 20250816 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.69 | USD | 20250816 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.69 | USD | 20250815 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1085.88 | USD | 20250815 |