— 04 / Network

# From Hong Kong, to your port.

Hong Kong headquarters, Shanghai subsidiary, Zhoushan engine base and Qingdao workshops, with subsidiaries in Guangzhou and Dalian. Share your port, vessel schedule and repair needs so we can assess the team, equipment and attendance arrangements.

[Check service availability →](https://v0-preview-mu-seven.vercel.app/en/contact#inquiry)

[Prepare an enquiry](https://v0-preview-mu-seven.vercel.app/en/contact#inquiry) [Urgent support · +852 6393 0630](tel:+85263930630)

CN · ZS

![Grand Ocean Zhoushan facility entrance](https://v0-preview-mu-seven.vercel.app/assets/img/workshop-10-960.webp)

— 01 / Engine base

## Zhoushan

Zhoushan · Dinghai Industrial Zone

The main base of Grand Ocean Engine Service. New workshop commissioned in 2024, equipped with HPS, FIVA / ELFI / ELVA test benches, MPC board test bench, laser cladding equipment and a precision machining centre.

Address

Room 103, Building 3

Wanma (Zhoushan) Smart Industrial Park · 29 Binhe Rd · Dinghai · Zhejiang

Role

Main engine HQ

HPS / FIVA / ELFI / MPC test benches

Phone

[+852 6393 0630](tel:+85263930630)

[+86 18918227989](tel:+8618918227989)

Email

[tech@grand-ocean.hk](mailto:tech@grand-ocean.hk)

CN · ZS · workshop

![Zhoushan test bench](https://v0-preview-mu-seven.vercel.app/assets/img/workshop-2-960.webp)

— 02 / Test bench

## Test bench.

Zhoushan main workshop · on site

The Zhoushan HPS / FIVA / ELFI / ELVA test benches — full test & diagnosis for engine automation, pneumatic control, electronic boards and injectors; covering WinGD, MAN-ES and Wärtsilä main engines.

Bench type

HPS · FIVA · ELFI

+ ELVA + MPC board

OEM scope

WinGD · MAN-ES

· Wärtsilä

— 03 / Headquarters & regional subsidiaries

HK · HQ

### Hong Kong

Tsing Yi · Yiu Lian Dockyards

Headquarters — commercial enquiries and coordination for marine, cruise and offshore services.
Flat 102, 1/F, Office Building, Yiu Lian Dockyards, 1-7 Sai Tso Wan Road, Tsing Yi.

Phone [+852 6393 0630](tel:+85263930630)

CN · SH

### Shanghai

Lingang / Pudong Jinwen Road

Shanghai Oceanward Maritime Service Co., Ltd — wholly-owned subsidiary. The listed LRQA documents include this entity. Laser cladding workshop: 66 Jinwen Rd, Pudong; confirm project scope with our team.

Cert WPS GOMOLCR-1 · DNV

CN · QD

### Qingdao

Shandong peninsula

Regional subsidiary with laser cladding and plate heat-exchanger workshop capability. Share the equipment details and intended port so we can assess workshop and attendance options.

Since 2018

CN · GZ

### Guangzhou

Guangdong

Regional subsidiary in Guangzhou. Contact the Hong Kong team to assess service arrangements for your South China port and vessel schedule.

Role Regional subsidiary

CN · DL

### Dalian

Liaoning

Regional subsidiary in Dalian. Contact the Hong Kong team to assess port attendance and repair arrangements for your project.

Role Regional subsidiary

— 07 / Timeline

## Since 2017. Growing our network.

2017

Hong Kong HQ established

Grand Ocean Marine and Offshore Service Co., Ltd. incorporated in Hong Kong.

2018

Shanghai & Qingdao offices opened

Shanghai and Qingdao offices established.

2019

Shenzhen office opened

Shenzhen office established.

2020

Four warehouses online

Hong Kong, Qingdao, Shenzhen, Shanghai warehouses online.

2021

Laser cladding & heat-exchanger workshops launched

Laser cladding & plate heat exchanger workshops launched in Shanghai and Qingdao.

2023

LRQA triple ISO certification

Document dates: 2023-10-18 to 2026-10-17 · ID 10557352. Request the latest valid certificates for your project.

2024

DNV Frame Agreement + Type Approval + BV hatch-cover cert

Customer 10725871 · TAS00004HE · BV 24192CHN24 · Zhoushan workshop opened · Engine Service incorporated.

2025

Shanghai Metalock service authorisation + Wencon dealer certificate

Authorised by Shanghai Metalock Co., Ltd · document 20211025001 · 2025-10-25 to 2030-10-24. Wencon dealer certificate valid from March 2025.

2026

Sea Sourcing MSA + Brokerage

Master service and brokerage agreements signed with Sea Sourcing (HK) Limited on 1 January 2026.

— 08 / Trusted by

## Serving shipowners, managers, cruise and offshore operators.

SEASPAN

Container · CAN

FLEET

Ship-mgmt · HK

BSM

Bernhard Schulte · DE

AESM

Anglo-Eastern · HK

MSC

Container · CH

ONE

Ocean Network Express · JP

Carnival

Cruise · US

CNOOC

Offshore · CN

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