Five non-governmental organisations for environmental and consumer affairs plan to issue comments on Friday, on a Environmental Impact Assessment (EIA) study of heli-harvesting of timber around the Muda, Pedu and Ahning dams in Kedah.

Sahabat Alam Malaysia (SAM), World Wide Fund for Nature, Wetlands International, Malaysian Nature Society and Consumers Association of Penang are conducting separate reviews of the EIA report, which was released on Dec 16.

Already, one group considers that the EIA report is "biased" in its approach to what is becoming a controversial project.

As a preliminary remark, SAM research co-ordinator Nizam Mahshar said the report has merely focused on mitigation problems.

"It does not address real issues such as the great impact of logging on the environment," Nizam told malaysiakini .