Phoenix Asia Holdings Ltd. is a Hong Kong-based holding company that provides substructure construction services through its operating subsidiary, Winfield Engineering. The company specializes in site formation, ground investigation, and foundation works for public and private sector projects. Its specific services include excavation and lateral support works, pile cap construction, earthworks, and structural steelworks. Additionally, the firm handles underground drainage, demolition, and provides advisory and supervision services for substructure projects. Operating primarily in Hong Kong, the company leverages over three decades of industry experience to serve a diverse client base as a Registered Specialist Contractor.