Legal analysis: The enterprises or self-employed individuals that meet the requirements of unification are: industrial enterprises with an annual business income of more than 21 million yuan, wholesale enterprises and self-employed households, retail enterprises and self-employed households with an annual business income of more than 5 million yuan, and enterprises with an annual business income of more than 5 million yuan engaged in residential services, repairs and other services, culture, sports and entertainment. Accommodation and catering enterprises and self-employed households with an annual income of more than 2 million yuan, enterprise legal entities engaged in other service industries with an annual income of more than 11 million yuan, enterprise legal entities with qualification certificates for construction enterprises and enterprise legal entities with qualification certificates for real estate development and operation enterprises.

Legal basis: The Statistics Law of the People's Republic of China. All enterprises or self-employed households that meet the requirements for unification should truthfully provide application materials and incorporate them into the national statistical system according to law. The implementation of the system according to law will be one of the necessary conditions for enterprises or self-employed households to apply for district government incentives and support.