The launching is regarded as a highlight for PNG as the country moves towards being validated as an EITI compliant member.
The reports were launched by Deputy Prime Minister, Charles Abel.
The 2015 and 2016 PNG EITI Reports are the third and fourth reports to be produced under the NG EITI Secretariat.
Secretariat Head, Lucas Alkan, said this was an achievement in itself and will be a factor in PNG being awarded compliant status or not.