Lightweight Charly Suarez is still on after a victory over Abdalai Anarbai Uulu of Kyrgyzstan, 14-5, and pushing for the Philippines to have another boxing delegation at the London Olympics.
Fighters from China and Iraq will also face in the semis.
The Davao-based fighter started boxing when he was only 15 years old, and took the gold medal from the 2010 Southeast Asian Games. He also attempted to earn a slot in the 2008 Beijing Olympics but had failed to qualify.
So far, only light-flyweight Mark Anthony Barriga has earned a trip to the global sport competition in July. The Philippines will also send in London another athlete, one from athletics (long jump), and one from judo, after qualifying from their respective preliminaries.