Should all property projects in Shenzhen join the club?

All real estate projects in Shenzhen must join this club. Relevant public information shows that the property service enterprises registered in Shenzhen and qualified for property management have not yet joined the association for membership procedures. Foreign property service enterprises and related units have undertaken property management projects in Shenzhen, but they have not yet gone through the membership procedures of the association. According to the articles of association of Shenzhen Property Management Industry Association, members should go through the membership procedures.