June 22nd. According to official website of Kunshan Xiufeng Middle School, Kunshan Xiufeng Middle School holds an open day for parents on June 22nd every year. Parents are welcome to visit. Xiufeng Middle School in Kunshan City is the first batch of demonstration junior middle schools of educational modernization in Jiangsu Province, and it is a full-time boarding private joint-stock junior middle school that came into being in the tide of reform.