45 1 199。 According to the information of China Post Network, Yangtze University is located atNo. 1, South Ring Road, Xinzheng, Zhengzhou City, Henan Province. The postal code of this address is 45 1 199, with the first two digits 45 representing Henan province, the third digit 1 representing Zhengzhou postal area, the fourth digit 1 representing counties and cities, and the last two digits 99 representing specific delivery offices.