Malaysia already identified all Environmental Sensitive Area that are sensitive to wildlife and water resources. They are important in tourism industries beside protecting and conserving biodiversity. Belum-Temenggor Forest Complex is among them. We need to organise regular scientific expeditions to update their biodiversity status. As top megabiodiversity country in the world, Malaysia must do something to support the sustainability of its biodiversity. Corporate and private sectors should support the expeditions, NGOs related and experts in biodiversity.