About Us


The first marine survey company in Australia to be accredited with the ISO 9001 Quality Management Certification.

The Management

Andrew Marsh

Managing Director
MIMarEST, I.Eng, M.A.I.M.S

Andrew Marsh has over 30 years' experience in the maritime industry beginning with a mechanical fitting trade and progressing to a sea-going career as a Class I marine engineer and finally coming ashore as a marine surveyor.

Mr Marsh's experience as a marine surveyor is extensive with expertise in the oil and gas industry, the tanker trade, commercial small craft, the fishing industry as well as Class and statutory surveys. He has carried out hull, machinery and cargo damage surveys on a wide range of vessels. Mr Marsh is an accredited OVID Inspector and has carried out inspections on offshore vessels utilizing the OVID, IMCA and IOVA and client specified systems.


Mr Marsh has been an examiner for Engineers Certificates of Competency, has carried out marine accident investigations, plan approvals and surveys during construction of for new builds.

Mr Marsh has been an integral part of Maritime Engineers' success and growth over the last 20 years and now holds the position of Managing Director.

Mui Heng Ng

General Manager

Mui Heng Ng has over 20 years' experience in the maritime industry having progressed to a First Class Marine Engineer Certificate of Competency during his sea-going career.

After coming ashore, Mr Ng joined the American Bureau of Shipping (ABS) as a Class surveyor and fully qualified ISM auditor. He has extensive experience in construction and repair of specialised oil and gas industry vessels and MODUs as well as commercial shipping.

Mr Ng later joined the prestigious Salvage Association as a senior surveyor and has conducted numerous hull and machinery surveys for marine claims and shipyard risk assessments (JH143) under the Joint Hull rules.


Mr Ng is a fully qualified OVID inspector and has also conducted CMID surveys under the International Marine Contractors Association format.

Mr Ng's senior management role as General Manager at Maritime Engineers encompasses a dual role as Operations Manager and also is responsible for the Quality and HSE system. In spite of his heavy responsibilities, Mr Ng manages to do a high proportion of complex ship surveys in the field.

Mr Ng is a highly valued member of the Maritime Engineers senior management.

Shaoheng Huang (Teresa)

Commercial Manager
Master of Business Administration

Teresa Huang is a valued senior member of Maritime Engineers management holding the position of Commercial Manager.

In this role Ms Huang is responsible for all the non-technical activities of the company and its branch offices in Darwin, Singapore and Japan.

From commercial finance, office administration, advertising, travel, IT support, staff reviews and employment of new personnel, Ms Huang's skill and professionalism carries a major responsibility for the success of Maritime Engineers.


Ms Huang joined Maritime Engineers over 10 years ago. She completed her Master of Business Administration degree whilst performing all her extensive management duties at Maritime Engineers. She excels in new challenges and conducts the office management smoothly to allow the technical staff to seamlessly conduct their contracts while contributing to the continual improvement of the company's business plan.

Tanya Valova

Engineering Design Office Manager
M.E.(Naval Architect)

Ms Valova joined Maritime Engineers at the start of 2016 taking up the responsibility of Design Office's operation and management.

Ms Valova has over ten years' working within her field. During this time, she has gained strong engineering experience as well as organisational and business skills. The activities she has undertaken include static and dynamic mooring design and verification, stability and motion analysis, structural design and analysis of steel vessel, Finite Element Analysis, structural design of lifting appliances and loadout engineering.


With a Master Degree in Naval Architecture, Ms Valova continues her personal improvement by undertaking various professional training such as project management, plan approval training and Computer Aided Approval (CAA).

Ms Valova has solid knowledge and experience in design software and her expertise in this area enhances Maritime Engineers' capability to deliver a wider range of engineering design services to our clients.

Mani Hackett

Principal Naval Architect
BE. Eng (Naval Architecture)

Mani Hackett joined Maritime Engineers in 2010 and began building our Design Office virtually from the ground up.

Mr Hackett is a graduate Naval Architect with a background in propeller design and ship stability. He has built up a strong team of engineering and naval architect graduates, draftsmen and associates to develop our design contracts.

Mr Hackett has been instrumental in the acquisition of specialised design software such as MaxSurf, Orcaflex and AQWA wave diffraction software as well as developing our finite element analysis and SolidWorks, AutoCAD drafting.


Mr Hackett has overseen some of our largest contracts and these have involved some worlds' firsts with dynamic analysis work. He has developed the Design Office quality and document control systems and continues to contribute to the company's ongoing improvement.

Mark Sambrailo

Marine Claims Manager
Certificate in Vessel Valuation

Mark Sambrailo has 25 years' experience as a Shipwright in the repair, construction, fitout, commissioning and sales of a variety of commercial vessels. 

Mr Sambrailo has been actively involved in marine claims assessments, condition surveys and valuations for financial institutions and Underwriters and many other survey activities since joining Maritime Engineers in 2013. He completed his Certificate of Vessel Valuation in 2014 and is now our senior valuer.

Mr Sambrailo brings to Maritime Engineers a vast range of ship building and local knowledge which has been invaluable within the company.

Andrew Borrill

Manager - Naval Hull Surveys
Associated Dip. Marine Science, Certified Naval Hull Surveyor, NACE Coating Inspector

Andrew Borrill is an accredited Naval Hull Surveyor and marine coatings specialist who heads our Naval Hull Survey division.

Mr Borrill has over 30 years experience in marine and general engineering workshop and ship repair work. He has considerable expertise in welding methods and weld procedures as well as machine tool operations.

Combined with his specialised training in marine coatings, Mr Borrill's experience to lead our team of Naval Hull Surveyors is invaluable.

Sandra Smith

Accounts Manager

Sandra Smith carries the responsibility of all Maritime Engineers accounts, payroll, reporting and personnel/HR activities for our offices in Fremantle, Darwin and Singapore.

Mrs Smith holds formal qualification in Business Accounting and conducts training seminars for Maritime Engineers administration staff in our regional offices.

Mrs Smith holds one of the most important and valued positions at Maritime Engineers Pty Ltd.

Juan Pazo

Regional Manager/Principal Surveyor (Darwin)
B.Eng. Naval Architect, CEng, MRINA

Prior to joining Maritime Engineers in 2017 and taking the leading role in Darwin office operation, Juan Pazo has been a vessel superintendent for an European shipyard in charge of project management and ship repairs and conversion.

Mr Pazo also has international marine warranty surveying experience in the Oil & Gas and offshore renewables industries including North Sea, Qatar, UK, Denmark and Angola.

Mr Pazo later became an AMSA accredited Marine Surveyor and Marine Safety Inspector with a role that covered the certification of commercial vessels in the Northern Territory, Stability Booklet approval, structural design and compliance.

As a Chartered Naval Architect, Mr Pazo has conducted detailed hydrostatic and hydrodynamic analysis of marine operations using various software and has been consulting on mooring, stability, transportation, installation and structural integrity of hull and cargo.

Jong Kwang Han

General Manager/Principal Surveyor (Singapore)

Han JK joined Maritime Engineers with the opening of our Singapore office in 2011 as General Manager/Principal Surveyor.

Mr Han has an impressive career in the maritime industry having been a principal surveyor with the Salvage Association and prior to that, a Classification Society Surveyor with American Bureau of Shipping and an Engineer Manager for a diesel powered power generation plant in Vietnam. Mr Han holds a Class I Certificate of Competency in Marine Engineering.

Mr Han has broad experience in marine hull and machinery claims as well as marine warranty surveys, casualty investigations and risk assessment for shipyards, vessels and ship management systems. He also has shipbuilding experience and has conducted FPSO conversion work.

With an experienced background such as this, Mr Han is a valued asset to run our Singapore office. The recent opening of our regional office in Kobe, Japan falls under Mr Han's responsibility and his local knowledge in the Far East as well as his language skills in Mandarin provides Maritime Engineers with an excellent opportunity to service the region.

KS Guorui Wang

Regional Manager/Principal Surveyor (Japan)

KS Wang joined Maritime Engineers with the opening of our regional office in Kobe Japan. Mr Wang brings to Maritime Engineers a wealth of experience in marine surveys having formerly been a principal surveyor with the Salvage Association.

In addition to this experience Mr Wang has over 30 years experience in LNG shipping both in ship construction and ship management. He is a world authority on LNG shipping and is the consultant of choice in most major LNG ship casualties.

Mr Wang is a Life Member of the Institution of Engineers, Singapore and a respected member of the maritime industry throughout the Far East.


His fluency in Mandarin, Japanese and English allows him to effortlessly operate throughout Japan, China, Korea, Taiwan and Hong Kong.

Mr Wang has been established in Japan for over 25 years and his local knowledge and reputation in the region makes him a most valuable asset to Maritime Engineers' expansion northwards into China. He will be able to train and pass on his intimate knowledge of the maritime industry to new surveyors as they join Maritime Engineers in the northern region of the Far East.