• Hong Kong 1980 to Hong Kong Geodetic CS (1)

  EPSG:8437
  Area of use: China - Hong Kong - onshore and offshore.
  

• Hong Kong Principal height to Hong Kong Chart depth (1)

  EPSG:5405
  Area of use: China - Hong Kong - onshore and offshore.
  

• HKPD height to HKCD depth (1)

  EPSG:5454
  Area of use: China - Hong Kong - onshore and offshore.
  

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