SHIP REPAIR & RETROFIT · MARINE ENGINEERING · GREEN TECH

Your Trusted Turnkey Partner for
Ship Repair & Green Retrofit

BWTS / EGCS / clean-energy retrofit design & construction, 3D laser scanning, onboard installation, commissioning & after-sales — turnkey delivery from drawings to sea trial.

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0Years of Experience

0+Professional Staff

0+BWTS Retrofit Designs

0+Commissioning & Service Vessels

National High-Tech Enterprise ISO 9001 / 14001 / 45001 Certified

ABOUT US

A Decade in Marine Engineering —
Design & Construction Integrated

Founded in 2012, Nantong Huayang Ship Technology Co., Ltd. is a high-tech enterprise specializing in ship & offshore engineering design, technical consulting, supervision and construction, as well as piping fabrication & installation, marine equipment commissioning, sales and after-sales service.

With 50+ employees, our technical and management teams bring rich marine engineering experience across hull, outfitting, machinery and electrical disciplines. We maintain long-term partnerships with leading makers including JRCS and TERASAKI (Japan), Siemens (Germany), ABB, Sailnico, Qingdao Sunrui, GT WINGS (UK wind-assist sails), Shanghai Rongde, 711 Institute, Samsung and Hyundai (Korea), serving shipowners worldwide.

One-stop turnkey capability: design + construction + commissioning + after-sales
In-house piping & cable-tray fabrication factory for piping and outfitting
First Chinese service partner of UK GT WINGS pneumatic sail projects
Service network covering all major Chinese shipyards & repair bases

OUR SERVICES

Six Core Businesses Across the Vessel Lifecycle

Approval Design

Concept & approval design of green and intelligent vessels: wind-power installation vessels, LNG bunkering ships, ammonia-fuel bulk carriers, all-electric vessels.

Production Design

3D production design across hull, outfitting, machinery & electrical disciplines with precise material ordering (90%+ utilization) for bulkers, tankers, chemical tankers, container ships and dredgers.

Retrofit Design

Approval & production design for BWTS, EGCS, FGSS/LFSS and clean-energy retrofits — 500+ BWTS and 50+ EGCS retrofit designs delivered.

Onboard Survey & 3D Scanning

Engineers board vessels to survey installation & operation data, laser-scan compartments in 3D, and deliver feasibility study reports for accurate retrofit solutions.

Engineering & Prefabrication

Our own factory prefabricates piping and outfitting with material supply, and experienced crews perform onboard installation — quality and schedule assured.

Field Service & Commissioning

Professional mechanical, electrical & automation engineers — 200+ BWTS and 50+ EGCS commissioning and after-sales projects completed efficiently and reliably.

TURNKEY SOLUTION

From 3D Scanning to Sea Trial — Worry-Free Throughout

1Onboard Survey3D laser scanning
2Type SelectionFeasibility report
3Retrofit DesignApproval + production
4PrefabricationIn-house factory
5InstallationExperienced crew
6CommissioningSea trial & after-sales

CORE STRENGTH

Proven by Numbers

0+BWTS retrofit designs

0+EGCS retrofit designs

0+BWTS retrofit constructions

0+EGCS retrofit constructions

0+BWTS commissioning

0+EGCS commissioning

0Rotor sail commissioning

0Methanol / FGSS retrofits

LONG-TERM PARTNERS · EQUIPMENT MAKERS

JRCS（日本）TERASAKI（日本）西门子 SiemensABB赛尔尼柯青岛双瑞 SunruiGT WINGS（英国）上海融德中国船舶 711 所三星重工 Samsung HI现代重工 Hyundai HI

SHIPOWNERS WE SERVE · WORLDWIDE

山东海运福建国航远洋河北远洋长航集团上海中化PILEPSSwire 太古Bocimar慧洋海运德祥海运正荣汽船（日本）NSC（德国）ENSIGN（希腊）

FEATURED PROJECTS

Every Project Is a Testimony of Trust

WIND SAIL

UK GT WINGS Wind-Assist Sail Project

First Chinese service partner of UK GT WINGS wind-assist sails; also completed 2 Norsepower rotor sail installations (46K product tanker & 350K VLOC) and 4 sail commissioning projects.

EGCS

EGCS Fleet Retrofit

24 scrubber retrofit constructions completed at COSCO Nantong, Zhoushan, Dalian & Shanghai yards, with 40+ commissioning services.

CLEAN ENERGY

China's First River LNG-Power Conversion

Approval design of China's first inland river LNG-power converted vessel, pioneering clean energy transition for river fleets.

DUAL FUEL

16500TEU Methanol Dual-Fuel & FGSS

Methanol dual-fuel retrofit of a 16500TEU container ship and FGSS tank replacement on COSCO's vessel — at the forefront of green fuel conversion.

NEW DESIGN

74000DWT Ammonia-Fuel Bulker

Approval design of the 74000DWT ammonia-fuel domestic bulk carrier — a pioneer of zero-carbon vessel development.

ELECTRIC

45m Shaftless Electric Patrol Vessel

Approval design of the 45m shaftless all-electric law-enforcement patrol vessel — a model of green and intelligent official ships.

Construction & Commissioning Track Record (Jul 2023 – Jul 2025)

Category	Scope	Qty	Typical Clients / Yards
Retrofit	BWTS retrofit	≈90 vessels	Sunrui / COSCO Shield / Blue Soul
Retrofit	EGCS retrofit	≈24 vessels	COSCO Nantong / Zhoushan / Dalian / Shanghai
Retrofit	Norsepower rotor sails	2 vessels	46K product tanker / 350K VLOC
Retrofit	FGSS / LFSS (methanol dual fuel)	2 vessels	COSCO vessel / 16500TEU container ship
Commissioning	BWTS commissioning	200+ vessels	Sunrui / Shield / Blue Soul / Headway / Techcross / Panasia / Samsung / Alfa Laval
Commissioning	EGCS / rotor sail / shaft generator / N₂ generator	40+ / 4 / 1 / 2 vessels	Major repair yards across China
Field Service	Bulker / container / tanker technical service	50+ vessels	Qingdao / Shanghai / Zhoushan / Guangzhou / Dalian...

CERTIFICATES

Accreditations & Client Performance Certificates

High-tech enterprise certificate — National High-Tech Enterprise Certificate

Performance Certificates Issued by Clients (Selection)

Ready to Support Your Next Project

Whether it's BWTS, EGCS, clean-energy retrofit, new-building design or on-site technical service, call us or leave a message — we respond within 24 hours.

Hotline (WeChat available)177 0627 0588

TEL +86-513-81026327
Room 402-403 & 421-424, Building 2, No.58 Chongchuan Road, Chongchuan District, Nantong, Jiangsu, China
www.huayang-ship-tech.com

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Your Trusted Turnkey Partner forShip Repair & Green Retrofit

A Decade in Marine Engineering —Design & Construction Integrated