This was recently highlighted when Rural Airstrip Agency CEO, John Bromley, was invited to the Republic of the Union of Myanmar to provide advice on the development of rural airstrips in the country of 54 million people.
Two state of Myanmar officials had initially visited PNG and were impressed by the RAA rural airstrip program, hence the invite.
Myanmar has 69 airports listed, many of them paved but most of them closed.
They suffer from the same problems that airstrips in PNG once suffered from.