Compare the plug shapes, voltage and frequency in Hong Kong and Papua New Guinea, and find out which adapter you need before you travel.
Adapter required
Yes — coming from Hong Kong, you will need a travel adapter for Papua New Guinea. Hong Kong uses Type G plugs, and Papua New Guinea uses Type I, so the pin shapes will not fit any wall socket.
Hong Kong (home)
Papua New Guinea (destination)
Electrical specifications in Papua New Guinea
Voltage
Frequency
More about plugs in Papua New Guinea
In Papua New Guinea, the standard power plug is Type I. The country runs on 240 volts at 50 Hz. That means every wall socket in Papua New Guinea is the same shape — Type I, and your plug needs to physically match the socket to fit.
Full Papua New Guinea plug guide