Chinney Kin Wing Holdings Limited, an investment holding company, engages in foundation construction, and drilling and site investigation works for public and private sectors in Hong Kong. It operates in two segments, Foundation Construction and Ancillary Services; and Drilling and Site Investigation. The company provides piling construction services, such as bored piling, percussive and socketed H-pileing, mini-piling, and sheet piling; other ancillary services, including ELS works, site formation, and pile cap construction; drilling and site investigation, and related ground engineering construction services; and equipment and machinery leasing, foundation piling, and construction material testing services. It also engages in grout curtain, excavation, horizontal directional coring, pre and proof drilling, rock and soil sampling, and field testing activities; and lateral support, basement and substructure works, road and drainage, slope and retaining features construction and maintenance works, and building works.