Daya Offshore Construction (DOC) a Wholly owned subsidiary of Daya Materials Berhad in Malaysia provides specialised subsea construction, installation, and inspection repair and maintenance services that involve complex engineering to the offshore energy industry worldwide aiming always to deliver projects safely, on schedule and within budget.

DOC operates a fleet of vessels in a safe, efficient and effective manner coupled with technically-advanced equipment, remotely operated vehicles (ROV) and modulated sat and air diving systems (MHS) complimented by a fully integrated in-house engineering and project management capability. We have the capability to respond quickly to our clients' needs by leveraging the full strength of our global network of service partners offering a wide spectrum of subsea services i.e.:

  • Installation Engineering, Project Management & Offshore Construction Management
  • FPSO tow and Hook Up services to include the Installation of FPSO moorings
  • SURF services to include engineering and installations for subsea field developments, flexible pipeline and riser systems
  • Fibre optic and cable installations
  • Offshore Transport & Installations
  • Construction, Installation services for subsea infrastructures;
  • Inspection, Repair & Maintenance (IRM)
  • Decommissioning

We deliver solutions to the offshore energy industry globally, both in-house, and through our network of service partners that support our efforts in a range of Subsea, Umbilical's, Risers and Flowlines 'SURF', Inspection Repair Maintenance and Construction projects. Such support is available across a wide-ranging geographical area, spanning from offshore locations in South East Asia, Australia, New Zealand, China, Middle East , North Sea and beyond.


Our vision is to execute safe and efficient projects worldwide for the benefit of all our stakeholders and to be a trusted solution driven partner to all our clients, recognised for our modern fleet and highly experienced personnel working with the highest degree of honesty and integrity.

Our business is driven by the dedication, knowledge and shear passion of all our people and we realise this through our company Motto:

'One Team One Goal - Bringing Excellence Subsea', We strive to be the acknowledged leader and preferred partner in supporting all our clients succeed in the world's rapidly evolving Oil and Gas Subsea industry. Since its inception, DOC is governed by its core values

  • Being Committed
  • Being Accountable
  • Being Resolute
  • Being Ethical

These shape the culture and define the character of our company. They guide how we behave and make decisions every day.


MG KOH has 30 years experience in the Oil & Gas industry - covering Corporate Management, Offshore Marine Transportation & Installation, Subsea Works, Design & Construction Engineering, Proposals/Estimating, Project Management & Offshore Construction (Project & Field). He worked for three (3) US majors in Offshore Construction - McDermott (1988-1989, 1995-1996), Offshore Pipelines Intl Ltd (1991-1995), Global Industries Ltd. (1998-2006), Area VP; and he also worked in Engineering Design & Construction companies: Worley (1986-1988), RJ Brown (1989- 1990). MG Koh managed own Project Management Company for six (6) years and his advisor Roles: Petronas Carigali (1995-1998), Dialog E&C (2013), Puncak GOM (2014) and Worldwide exposure: USA, West Africa (Nigeria, Zaire, Congo, Angola, Equatorail Guinea, Cabinda), Middle-East (Bahrain, Dubai, Saudi Arabia, Kuwait, Oman), India (Mumbai, N Delhi), Asia-Pacific (KL, Singapore ,Thailand, Indonesia, Vietnam, Myanmar), Australia (Sydney, Melbourne)


Mr Malling has 10 years of experience within the Subsea Construction, Decommissioning and Windmill industry. In AF Decom Offshore, where he worked for 7 years, he was responsible for the Marine Spreads (OSV's, Heavy Lift Vessels, Barges, etc) in connection with multi-million dollar offshore projects for Statoil, ConocoPhillips and Shell in all sectors of the North Sea. He commenced his career as a field engineers on the high-profile Ekofisk decommissioning project and worked his way up to the Onshore and Offshore Construction Manager for several similar projects, responsible for multi-discipline, multi-national crews of up to 200 men. Before joining Daya Offshore Construction as Vice President for Western Hemisphere in 2013, Mads Malling was partner and head of the subsea division for the brokering house, UNO Offshore for 3 years. Mads holds a BSc (Hons) in Technology and Business Management from University of Glasgow.


Rose Marie O'Donnell joined DOC as Global Contracts Adviser in January 2014. Rose Marie completed her law degree from Cambridge University, UK in 1996 and after completing her postgraduate Diploma at the College of Law, London, she trained and worked at niche Shipping and Maritime Solicitors, Holmes Hardingham in London. She returned home to Scotland in 2003 and worked in private practice in the shipping departments of Henderson Boyd Jackson and Brodies Solicitors. Rose Marie was seconded to Skuld P&I Club in Stockholm and Stolt Parcel Tankers Inc in Connecticut and Houston and has over 15 years of experience dealing with shipping contracts, charterparties and commercial contractual issues as well as having considerable litigation and dispute resolution experience.

Making Safety an absolute priority in all we do, as a company we are totally "Committed to Safety Excellence". Health and Safety is a fundamental priority for DOC, ensuring the highest level of health and safety performance is delivered in every project, every day, the world over.

DOC has developed a culture on safety and quality which is led from the very top, cascaded through every level of management, reinforced by all our employees and recognised and rewarded in the performance of individuals.

With Communication being a key part of our safety culture, it is the Policy of DOC to take a "proactive" approach to Health, Safety and Environmental issues. We aim to ensure that we protect all of our employees from injury and illness arising from our operational activities and fully comply with all relevant legislation, regulations, codes of practice and guidelines.

We are totally committed to conducting our business safely which is conducive to minimising the impact on the environment. We integrate environmental improvements into all our strategies which address the environmental concerns specific to the activities of each of our projects.

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Continual development of our buisness is considered of paramount importance to DOC. In order to help achive this we request that should you have any feeback for us that you please take the time to complete and submit our performance survey located here: Click to provide feedback