SKK Holdings Limited, through its subsidiaries, is a civil engineering service provider that specializes in subsurface utility works in Singapore. It provides civil engineering services to its customers in Singapore in public utility projects, electrical and telecommunication cable laying works, water pipeline works, and sewer rehabilitation works. The Company, through its subsidiary, SKK Works Pte. Ltd., is engaged in construction installation, with business in communications and power line construction, and engaged in subsurface utility works, including underground piping works, underground utility infrastructure construction, and maintenance and Horizontal Directional Drilling (HDD) works in Singapore. The Company, through its subsidiary, SKK Works M & E Pte. Ltd, is engaged in construction installation, with business in water and gas pipeline and sewer construction, and engaged in subsurface utility works, including underground piping works, among others.