Beijing Tongyizhong New Material Technology (BJTYZ, 北京同益中新材料科技股份有限公司) is a company specializing in the research and development, production, and sales of ultra-high molecular weight polyethylene fibers and their composite materials. It offers high-modulus polyethylene fiber (HMPE) ropes, nets, gloves, and ballistic products; soft and hard ballistic, cut-resistant, and stab-resistant fabrics; and helmets, plates, armors, shields, blankets, and other protective clothing.