This is an annual enrolment fee that helps pay facilities hire, purchase school materials and resources, support teachers for their inconvenience and volunteering efforts, run events and initiatives for students, skill enhancement for teachers, curriculum development etc.
There is a nominal annual fee of $100 per child with a maximum of $200 per family. i.e. 1 child= $100 annually, 2+ childs=$200 annually.
This is purely voluntary contribution so far.