Raphael Perpetuo Mercado Lotilla, also known as Popo, is a Filipino lawyer, businessman and government official. He is the Secretary of Energy under the administrations of Presidents Gloria Macapagal Arroyo and Bongbong Marcos, respectively.

Alfonso "Al" Gaba Cusi is a Filipino businessman from Naujan, Oriental Mindoro who served as the 14th Secretary of Energy under the Duterte administration from 2016 to 2022. He also served in the Arroyo Administration as head of government air and sea transportation agencies from 2001 to 2010. He is the Vice Chairman of Partido Demokratiko Pilipino, after becoming president of the party then known as PDP–Laban in 2021.