Sino-Ocean Service Holding Limited, a subsidiary of Shine Wind Development Limited, provides comprehensive property management and value-added services primarily in China; its core offerings encompass property management services including security, cleaning, greening, gardening, repair and maintenance for residential communities, commercial properties such as shopping malls and office buildings, and non-commercial properties like hospitals, schools, government buildings and public facilities; commercial operational services featuring pre-opening management, tenancy sourcing, tenant coaching, consumer and marketing management; community value-added services such as community asset enhancement, living services including home appliance repairs, retail commodities, home decoration, housekeeping, property brokerage and carpark management; as well as services to non-property owners like pre-delivery and consultancy for developers, property engineering, energy management and community space operations; the company also engages in information technology, leasing and commercial activities. Founded in 1997 and headquartered in Tower A, Ocean International Center, Chaoyang District, Beijing, it operates across 54 cities in 24 provinces, municipalities and autonomous regions, managing over 300 properties with significant contracted gross floor area exceeding 70 million square meters, focusing on first- and second-tier cities including strong presence in Beijing-Tianjin-Hebei and Bohai Rim regions, serving residential owners, residents, developers and other property managers. In July 2025, it announced a major connected transaction via framework agreement with controlling shareholder Sino-Ocean Group Company Limited for asset-light agent construction investments, alongside ongoing integration amid parent company's March 2025 completion of USD6.3 billion offshore debt restructuring via UK plan and Hong Kong scheme.