Evaluating the school to earn the Royal Award School in mid-size Secondary level for 2020 academic year.

The school executives, teachers, students, committees of Parent-Teacher Association, Wanglang Wattana Alumni Assosiation and honorable guests joined force in welcoming the Committee on Standards and Quality Assessment for the Royal Award in mid-size secondary school category, 2020 academic year. The event took place on Wednesday 10 March 2021. In case the school passes the assessment this time, the certificate and gold plague will be awarded to affirm its excellence.