About Quality Control Battles - 5300: Based in City of Puerto Princesa, Quality Control Battles - 5300 is a self-produced event , an amateur battle rap league and the 1st well-organized battle rap scene in Mainland Palawan. House of different grassroots Palaweño Hip-hop talents Former league names: BKBKN rapbattle - From 2014 to 2015 Palawakan Rapbattle From 2015 to 2019 Quality Control battles From 2019 onwards. fb official page : https://www.facebook.com/qualitycontrolbattlerap