After the opening of the korean port, the influx of koreans to Shanghai was expanded and lead to form their society. Among these koreans many dealt in Ginseng peddling, which proportion was big enough to influence Shanghai ginseng market. There were also koreans dealing in pharmaceutics. Korea Red Cross contributed greatly in the propagation of medical knowledge and health care in Shanghai korean society. Korean doctors opened their own clinics in the area of korean habitants. But overall size of clinics and the medical apparatus were minimal. By this reasons many koreans utilized general hospitals founded by foreigners and chinese.