Indonesian citizen, born in Pati on July 22, 1969. Adi Lumakso was appointed as Director of Regional Business for Sumatra and Kalimantan based on Decree No. SK-392.MBU.12.2021 dated December 7, 2021. Subsequently, based on Decree No. SK-213/MBU/09/2022 regarding Dismissal, Change of Position Nomenclature, Transfer of Duties, and Appointment of Members of the Board of Directors of the State-Owned Company (Persero) PT Perusahaan Listrik Negara dated September 21, 2022, he was appointed as Director of Generation Management. His latest position, based on Decree No. SK-159/MBU/6/2025, is Director of Risk Management.

Educational Background

• Bachelor of Civil Engineering – Diponegoro University, 1989
• Master of Business Management – Universitas Tenaga Nasional Malaysia, 2005

Professional Background & Expertise
Adi Lumakso is an Engineer who has spent more than 27 years of his career at PT PLN (Persero). Pioneering his early career in the Project field in Sumatra and Kalimantan, until finally he was given the mandate as General Manager of Main Development Unit (UIP) X in 2013, then became General Manager of Main Development Unit (UIP) V in 2015. Subsequently appointed as Head Construction Administration Division at the Procurement Directorate of PT PLN (Persero) Head Office in 2015, and most recently served as Head of the Sumatra Regional Construction Division at the Sumatra Regional Business Directorate of PT PLN (Persero) Head Office in 2017.