Nanjing Ruihan Aviation Parts Co., Ltd. was established on September 20, 2011, as a wholly foreign-owned enterprise in Hong Kong, Macau, and Taiwan. The total investment for Phase I was 30 million US dollars, fully introducing Arrowhead Products' advanced manufacturing processes, technology, quality management system, and industry management experience from the United States. The company is mainly engaged in the design, manufacturing, sales, and service of aerospace environmental control system pipelines. Currently, it has been maturely applied to products of many famous aircraft manufacturers around the world, and has successfully assisted in the manufacturing of domestic C919 large aircraft projects and other tasks.