Who We Are

Over 22 years of experience in providing power solutions has given PT Sumberdaya Sewatama (“Sewatama”) the recognition it deserves as a leader in the industry. Since our humble beginning as a diesel generator rental, we have grown significantly through the rise of a diversified portfolio in IPP, Energy Efficiency Services, and Operation & Maintenance.

Sewatama is a subsidiary of PT ABM Investama Tbk., a holding company engaged in Mining and Energy-related business. Our parent company, in turn, is a member of the Tiara Marga Trakindo Group, a solid group of companies engaged in virtually the entire spectrum of commercial activities: from heavy equipment sales and services, investment company in diversified business, one-stop shop financing to integrated energy company. While our own subsidiaries have taken us to the forefront of developing long term power solutions.

The Synergies that exist among members of Group have provided us with the end-to-end capabilities to ensure effective scales of operation. These, coupled with our decades of experience have enabled us to provide customer satisfaction without fail.

Sewatama has enjoyed robust growth since 1992, and now boasts 7 representative offices, in addition to our headquarter in Jakarta, and 6 depot stations that are manned by over 1.800 skiled personnel, as well as a massive installed base of more than 1.142 Megawatts. Today, Sewatama provides total and integrated power sollutions through its 4 lines of business: Power Rental, Operation & Maintenance, Energy Efficiency Services (Pillar Business), and Independent Power Producer.

Our operation and activities cover the entire country of Indonesia, with projects stretching the entire span of the vast archipelago. This experience has encouraged Sewatama to venture beyond the country’s borders for more opportunities. We serve customers from the utility, mining, oil & gas, manufacturing, construction industries as wel as industrial estates. We have also successfully established a reputation for being a trusted partner to the government of Indonesia in its national electrification efforts – a testimony to our credibility and reliability in the industry.

Moving forward, we will continue to support the government’s effort to establish national eleftrification, as wel as meet the private sector’s growing demand for electrical power. We shall remain faithful to our vision to become the contry’s industry leader, providing total power solutions, firts to the nation, then the region and the world.


Our Group Mission

  1. To maintain profitable growth and maximize the shareholders' value
  2. To provide highest and relevant quality of power solutions and associated services to both Utility (PLN) and Non-Utility customers in Indonesia in short to medium term, beyond Indonesia in medium to long term.
  3. To continue creating worthwhile & challenging job opportunities to as many Indonesians as possible with continuous development and better quality of life for our employees
  4. To continue to applying safe and environment friendly technology to deliver added value to the community


Core Values


We enforce the highest ethical and moral standards, demonstrating honesty and fairness in all activities.

Continuous Development

We are committed to continuously developing both our companies and employees.


We continuously strive to achieve the highest standard of result.


We pursue and adopt new techniques and approaches to improve our business quality.


We assume responsibility to stakeholders for all the decisions and actions taken.


We promote and support a multicultural workforce based on trust and respect, achieving goals by communicating appropriately.

Leadership Traits


Display leadership competence in making correct decisions.


Set encompassing goals; have a well-communicated vision that all members of the organization would take into ownership; envision how to succeed and establish priorities based on the company’s core values.


Exhibit confidence in all interactions; take charge; demonstrate endurance; communicate, inspire, and empower others to achieve new heights.


Develop self-potential and seek new challenges.

Honest and Humble

Be sincere, modest, reliable, and straightforward in maintaining trustworthiness.


Group Structure



Structure Organization Chart




Ahmad Ananda Djajanegara

President Commisioner

Indonesian Citizen aged 51. He is appointed as President Commissioner of the Company pursuant Sewatama’s AGMS decision on 8 May 2017. He obtained his Bachelor degree in Administration from the Faculty of Social and Political Science at University of Indonesia. He then obtained his Master of Business Administration in 1992 from Rotterdam School of Management, Erasmus University, Rotterdam, the Netherland.

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Adrian Erlangga


Indonesian citizen, aged 53. He is appointed as the commissioner of the Company pursuant the AGMS decision on 8 May 2017. Earned his Master of Business Administration from the Golden Gate University, San Francisco, USA in 1993 and Bachelor of Law from Padjajaran University in 1989. Currently, he is also Finance Director of PT ABM InvestamaTbk since 2014 and reappointed on 31 May 2015.

Miranti Gani

Independent Commissioner

Indonesian citizen, age 55. Miranti Gani appointed as Independent Commissioner of PT Sumberdaya Sewatama through an Extraordinary General Meeting of Shareholders on September 13, 2018, after completing and proper selection held by parent company, PT. ABM Investama, Tbk.

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Ferry Arief Sunandar

President Director (Starting 1 July 2018 )
Chief Executive Officer (Starting 1 January 2018)

Ferry A. Sunandar, Indonesian Nationality (54 years old) appointed as the President Director of PT Sumberdaya Sewatama through a decree issued via Company’s Extraordinary Shareholders meeting No. 38 dated July, 11th 2018, His career at ABM Group established when he was named as Finance Director at PT Cipta Krida Bahari (CKB) in 2014. He successfully improved business performance of CKB logistic in just two years. Another appointment came in 2017 where the Group, through its extraordinary shareholders meeting May 8, 2017 trust him to direct power and electricity business of PT Sumberdaya Sewatama, a national power solution provider, another subsidiary of PT ABM Investama Tbk.

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Hendrik Zulkarnaen

Director (Starting July 1st, 2018)
Chief of Sales & Operation Officer Power Solutions (Starting January 1st, 2018)

Indonesian citizen, aged 50. He was appointed as a Chief since January 1, 2018. As of July 1, 2018, he was also appointed as Director of PT Sumberdaya Sewatama. He obtained an engineering degree from ITI (Indonesian Institute of Technology) in 1992. He participated in various trainings and courses in management, marketing, sales, communications, finance and operations. Previously, he served as COO PT Pradipa Aryasatya in 2013.

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Our Management Team

Mustofa Kamal Zulkarnain

Chief Operation Officer & Chief Adminstration Officer

Indonesian citizen, aged 49. He was appointed as a Chief since January 1, 2018.He earned a degree in Mechanical Engineering Department of University of Gadjah Mada, his skills are improved through several trainings including Strategic Marketing, Team Building and Safety. Previously, he held a number of important positions in PT Slumberger Wireline Service, PT Garuda Indonesia, PT United Tractors, PT Mahatrako Jaya Utama and PT Eka Dharma Jaya Sakti. He is an engineer with longstanding experience in heavy equipment management. He has strong knowledge of spare parts inventory and logistics management, including its marketing, sales, operations and customer relations.

Nadia Diposanjoyo

Corporate Secretary

Indonesia citizen, She was appointed as Corporate Secretary of Sewatama on May 1, 2012 based on the Decree of the Board of Directors No.SSBOD/05/ KEPBOD/01/2012.

Graduated from the Royal Melbourne of Technology (RMIT), she began her career in the field of Public Relations and is experienced in dealing with marketing, corporate, Initial Public Offering (IPO), below the line, and public affair campaign, in a number of multinational companies to one of the largest conglomerate company in the country.

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Miranti Gani

Head Of Audit Committee

Indonesian citizen, age 55. Miranti Gani appointed as Head Of Audit Committee of PT Sumberdaya Sewatama through an Extraordinary General Meeting of Shareholders on September 13, 2018, after completing and proper selection held by parent company, PT. ABM Investama, Tbk.

Holding Bachelor of Economics majoring in financial business from the University of Indonesia in 1988, Miranti has 29 years of working experience, both in the consulting and a professional career in financial and banking industry.

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Andradiet I. J. Alis

Member of Audit Committee

Indonesian Citizen, aged 54. He graduated with a Bachelor Degree in Mining Engineering, Institute Technology of Bandung (ITB) in 1988. He served as member of the Audit Committee since 31 May 2013. Currently, he is also Audit Committee member PT ABM Investama Tbk and was a member of Audit Committee and GCG at PT Timah Tbk. He started his career in PT Kaltim Prima Coal (KPC) as a Trainee Engineer in 1988, and Andre has developed his professional career for 29 years in mining industries, within mine planning and production areas, as well as marketing and project management. Since 1995 his activities has been focused in mining consulting and business advisory for national and multinational companies.

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Setiawan Kriswanto

Member of Audit Committee

Indonesian citizen, aged 56. He earned a Diploma III in Indonesian State College of Accountancy (STAN) Jakarta, in 1982, a Bachelor of Indonesia School of Economics in 1986 and earned a Master of Management from the University of Krisna Dwipayana in 2002. He served as Audit Committee since 17 December 2015. Previously, he served as Audit Committee of PT Timah Tbk (2010-2014), Audit Committee of PT Humpuss Intermoda transportation (2008-2013), Audit Committee of PT Bank Internasional Indonesia Tbk (2008-2012), Audit Committee of PT Bank Danamon Indonesia Tbk (2002 -2008).