About Us
Formerly known as Kwan Sing Marine — a leading name in marine and civil infrastructure since 1981.
40+
Years of Excellence
Excellence in Marine Construction Since 1981
Established in 1981, Brownstone Dredging & Infrastructure — formerly known as Kwan Sing Marine — has grown to become a leading name in marine and civil infrastructure. The firm operates in coastal, offshore, and inland marine environments, serving both government and private-sector clients with recognized expertise in marine and civil infrastructure works.
Over four decades, we have delivered breakwaters, ports, wharves, dredging, reclamation, and coastal protection across Asia and Micronesia — always guided by quality, safety, and environmental responsibility.
“We always get the job done.”
Our Vision
To be the #1 Marine Construction company in Asia and surrounding areas of Micronesia.
Our Mission
To deliver excellence in marine construction, while prioritizing safety, environmental responsibility, and community development.
0+
Years of Experience
0+
Major Projects Delivered
0%
Commitment to Safety
0
Regions Served — Asia & Micronesia
What We Deliver
Six core service areas spanning marine construction, dredging, and engineering.
Breakwater Construction
Design and build durable breakwaters that shield coastal areas, ports, and harbors from wave action and erosion.
Port & Wharf Development
Full-scale port and wharf construction, including bulkheads, piers, jetties, and container terminals.
Dredging & Marine Mining
Hydrographic surveys, suction dredging, and sediment removal for navigational channels, plus sustainable marine resource extraction.
Ship Repair & Building
Custom shipbuilding and repair services for workboats, barges, and support vessels.
Marine Construction & Engineering
Coastal and structural engineering for marine and civil infrastructure works across offshore, coastal, and inland environments.
Marine Equipment Rentals
Marine equipment and a skilled workforce available for hire to support project execution of any scale.
The Team Behind Brownstone
Experienced leadership driving our marine and infrastructure operations.
Rommel Zapanta
President
Francis Fok
Marine Expert — Director
Jean W. Philippe
Business Development — Director
Core Competencies That Get the Job Done
With over 45 years of hands-on experience, our multidisciplinary team brings the expertise, equipment, and discipline required to deliver complex marine and civil works — safely and to specification.
“We always get the job done.”
Marine Surveying
Precise hydrographic and site surveys.
Coastal & Structural Engineering
Sound engineering for demanding environments.
Equipment Installation & Operation
Full marine plant and equipment capability.
Logistics Planning
Coordinated mobilization and supply.
SME Technicians
Skilled specialists on every project.
Environmental & Safety Compliance
Responsible, compliant marine practice.
Ready to Start Your Project?
Talk to our marine construction experts today — We always get the job done.