Shanghai Huolin environmental protection engineering equipment Co., Ltd. (hereinafter referred to as Shanghai Huolin) is established on the basis of Shanghai Huolin Chemical Equipment Engineering Co., Ltd.

Shanghai Huolin's main business: research and development of low nitrogen combustion technology, technical consultation on boiler optimization, fine commissioning of operation performance; and the "Four Wastes" treatments. "Four Wastes" means the research and development of NOx, SO2, dust and mercury capture technology and engineering technical consultation. In combination with Harbin No.3 Power Plant of Huadian energy, the project of "Ultra-low emission technology of wet flue gas dust removal and demisting of 600MW unit" was jointly developed. The technology transformation equipment, “Flue gas flow rate adjustable, wet dust removal and mist removal integrated device”. The device was successfully applied in desulfurization absorption tower of No.3 unit of Harbin 3rd power plant in July 2016.

上海霍林环保工程设备有限公司（以下简称上海霍林）是在上海霍林化工设备工程有限公司基础上设立的企业。

上海霍林主要业务：低氮燃烧技术研发与锅炉优化技术咨询、运行性能精细调试；“四废”即NOX、SO2、粉尘、汞的捕集技术的研发与工程技术咨询。高效除尘除雾器的设计制造，与华电能源哈尔滨第三发电厂联合研发了“600MW机组湿烟气除尘除雾超低排放技术研究”项目，其技术转化的设备“旋流型烟气流速可调节湿式除尘除雾一体化集成装置”于2016年7月份成功应用在哈三电厂#3机组脱硫吸收塔内, 并于2017年12月份被中国华电集团评定为科技进步奖一等奖。