EAHC Permanent Secretariat

What's New

Report of EAHC 1st SC, 2nd CHC and 2nd TRDC-BOD meetings (26 March 2014)
   Information about cartographic boundary (15 August 2013)


The East Asia Hydrographic Commission (EAHC) is a regional hydrographic commission within the framework of the International Hydrographic Organization (IHO). It was established in 1971, on the occasion of the inaugural meeting of the EAHC under the initiative of China, Indonesia, Japan, Republic of Korea, Philippines and Thailand. Later, DPR of Korea, Malaysia and Singapore joined the commission.

The EAHC composed of the Hydrographers of the countries bordering the Northwest Pacific Ocean, Japan Sea, Yellow Sea, Eastern China Sea, South China Sea, Philippine Sea, Malacca Strait, Northeastern Indian Ocean and adjacent waters in conformity with the Resolution S9 of the Ninth International Hydrographic Conference. The Permanent Secretariat of the EAHC is the Hydrographic and Oceanographic Department of Japan.

The main achievements have been producing of the South China Sea ENC in 2005 and establishing the ENC Task Group in 2006 to improve ENC consistency and coverage of the region.



The purpose of the EAHC are:
To coordinate the activities of national hydrographic offices in the region without influencing the internal affairs of the respective hydrographic offices or diminishing their national responsibilities.
To facilitate the mutual exchange of information regarding surveys, research, new developments and technical details related to hydrography.
To encourage mutual assistance for the development of techniques in hydrographic work.
To work out regional cooperative programmes in hydrographic work. Such regional cooperative programmes shall be subject to approval of the Government of the member concerned.

Organizational Structure

The EAHC includes a couple of Working Committees such as Capacity Building Committee and ENC Task Group.

All EAHC Member States meet together to hold the Conference/Meeting on a regular basis.

Click here for details


<15 August 2013>
Information about cartographic boundary (Concept paper / presentation file )

South China Sea ENC
ENC Catalogue
Commodore Romeo I. HO (Philippines)
First Admiral Zaaim Hasan (Malaysia)
China ---> details
DPR of Korea ---> details
Indonesia ---> details
Japan ---> details
Malaysia ---> details
Philippines ---> details
Rep. of Korea ---> details
Singapore ---> details
Thailand ---> details


Hydrographic and

2-5-18, Aomi, Koto-ku,
Tokyo 135-0064,
Tel: +81-3-5500-7124
Fax: +81-3-5500-7142
email: ico@jodc.go.jp