Langhuang Longhui Environmental Protection Technology Co., Ltd. was established on February 10, 2023, with its registered location in Xiaoguang'an Village, Guang'an Town, Dacheng County, Langfang City, Hebei Province. The legal representative is Zhang Yong'an. Business scope includes: general projects such as technical services, development, consultation, exchange, transfer, and promotion; fireproof sealing material production and sales; refractory material production and sales; paint manufacturing (excluding hazardous chemicals); paint sales (excluding hazardous chemicals); sealing material sales; sealing part sales; thermal insulation material sales. (Except for projects that require approval, the company operates independently based on its business license in accordance with the law.) Permitted projects: construction engineering.