Updated: Apr 7, 2019
Sure. According to the EDB website FAQ on universal basic education: The Government of the Hong Kong Special Administrative Region is committed to provide nine-year free universal basic education to all eligible local children, including non-Chinese speaking ethnic minority children. Under the existing policy, all parents must send their children (aged 6 – 15) who have the right of abode in Hong Kong to attend schools.* If you choose schooling after homeschooling, just simply send applications to the schools. Your child(ren) can attend schools after interview and placement tests.
*Education Bureau http://www.edb.gov.hk/en/student-parents/placement-assistance/about-placement-assistance/index.html (dated 25 Aug, 2015)