Malaysian banks have been urged to apply more regulations on finance for forest clearance in Papua New Guinea.
Environmental justice NGO Global Witness has released a new report into international financing of deforestation.
It says six companies associated with destruction of the world's main forests received $US44 billion in finance over the past six years.
Malaysian financial institutions have been identified as major backers of logging and oil palm activities in PNG.
A policy advisor with Global Witness, Lela Stanley, told Johnny Blades why the NGO sees this as problematic.
Meanwhile, Rimbunan Hijau has denied that its operations in PNG have infringed landowner rights.