Founded in 1992, Litree Enterprises (Litree) has been recognized as a leading designer and manufacturer of the finest hollow fiber Ultrafiltration (UF) membranes and membrane modules in Asia. In business for over 30 years, Litree has earned an industry-wide reputation as a supplier of quality and high performance UF membranes.

Wuhan Hengtongyuan Environmental Protection Engineering Technology Co., Ltd. is a high-tech enterprise specializing in the research and development, , installation, commissioning and operation of water treatment and environmental protection equipment. The main products include pure water equipment, ultra-pure water equipment, EDI ultra-pure water equipment EDI modules, reclaimed water, wastewater MRV three-effect evaporation, and waste gas treatment equipment.

About Tianjin MR

FROTEC is a professional manufacturer of filtration products, focusing on environmental protection. With advanced production equipment, quality control instruments and technology, FROTEC designs and manufactures filtration products in liquid and gas & air, such as membrane pressure vessel, FRP tank, UF membrane, filter cartridge, filter housing and etc. Our products are applied to bio-pharmaceutical, medical, food & beverage, microelectronic, chemistry, electronics, water treatment and laboratory application. With many years' experience in filtration, our products are best introduced by our partners in many countries and areas, like the USA, Africa, Europe, Southeast Asia, South America etc. We aim at working together with our partners to protect our environment. We will continue to carry forward the quality-first, pioneering and innovative spirit to manufacture and supply products with superior quality.