国林科技：凯涟捷经营范围为顺丁烯二酸酐（顺酐）及液化气的生产和销售

Group 1 - The core inquiry from investors is whether Kailianjie has natural gas licenses or qualifications [2] - Guolin Technology (300786.SZ) responded on the investor interaction platform, stating that Xinjiang Kailianjie Petrochemical Co., Ltd. is engaged in the production and sales of maleic anhydride and liquefied gas [2]