The Australian newspaper reported New Zealand the US, Japan and South Korea are supporting the project, which will be PNG's largest ever development investment.
The project will deliver internet to 70 percent of PNG and improve access to power.
Both China and the US are also expected to announce new investments in the region at the APEC summit this week.
Beijing will announce new mining and energy investments in PNG, and two Confucius Insitutes to be housed at PNG universities.