Does "three supplies and one industry" mean contracting out the property of state-owned enterprises?

Water supply, power supply, heating (natural gas supply in non-heating areas) and property management (referred to as "three supplies and one industry"). The separation and transfer of "three supplies and one industry" refers to a management work in which state-owned enterprises (including enterprises and scientific research institutes) separate the property management functions such as water, electricity and heating in family areas from state-owned enterprises and hand them over to social professional units for management. It is policy-oriented and professional, involving a wide range and extremely complicated operation.