Meetings held this week successfully discussed all benefits on the agenda except one, The National reported.
Parties involved have agreed to include three new benefits: resettlement and grant assistance; business development and grant assistance; and women in mining grant assistance.
However the issue regarding the inclusion of the developer of the project - Barrick PNG - in the MoA was not able to be settled upon.
The company had been an observer since the start of the MoA discussions two years ago.
Other parties involved have proposed Barrick join the MoA to formalise its participation in implementing MoA obligations.
However, Barrick has not agreed to be a party because a review of a MoA could not introduce any new parties, without affecting fundamental obligations under the MoA and any new agreements.
The review meeting could not come to a compromise regarding this issue, which forced the adjournment of the meeting.
The federal government, Barrick PNG and the Enga provincial government have agreed to initiate the process of resettling landowners who are living in the mine's special mining lease area.
Agreement terms state that landowners must be relocated to a new piece of land with housing and all basic infrastructural needs.