It will permit the Philippines to move beyond its productions possibilities curve (PPC)
No nation is the most efficient at producing everything for it, so when nation's trade, they are able to use their resources more efficiently.
So the Philippines can concentrate on a wide variety of productions, (not just one or two! that's asking for disaster!) and it can trade those products with other nations that are specializing in things that the philippines lacks.
This system of trade is called comparative advantage.