Carbon counting in Berau. (c) Bridget Besaw

Our Leadership Structure


Globally and locally, the staff of The Nature Conservancy is committed to respect, integrity, diversity and lasting results.
The Nature Conservancy is led by our CEO and President, Mark Tercek. A former managing director for Goldman Sachs, where he spent 25 years, Mark brings deep business experience to his role leading the Conservancy, which he joined in 2008. He is a champion of the idea of natural capital—valuing nature for its own sake as well as for the services it provides for people in Indonesia and elsewhere, such as clean air and fresh water, productive soils and a stable climate.


TNC Indonesia Program Leadership Structure

RIZAL ALGAMAR, Country Director

Algamar joined TNC on October 2012, with 14 years of experience in the private sector. Before joining TNC, he was a Senior Vice President – Head of Corporate Social Responsibility (Daya) at a commercial bank, National Pensionary Savings Bank (BTPN). He was responsible in engaging stakeholders into CSR programs, enhance bank-wide CSR blue print, enhance process, structure and system, as well as institutionalize social performance management system and build alignment with all business unit and human capital. Algamar obtained his Master of Business Administration from Indonesian Institute for Management Development (IPMI), Indonesia. Prior to that, Algamar attained Bachelor of Science in electronic Engineering Technology from DeVRY Institute of Technology, USA.

HERLINA HARTANTO, Terrestrial Program Director

Herlina started working with TNC Indonesia in February 2010 as the Terrestrial Program Learning and Application Senior Manager. Less than a year later, she led the Community Forest and Protected Area teams before officially became our Community and Protected Area Senior Manager in May 2012. Before joining TNC, Herlina was a scientist at the Center for International Forestry Research (CIFOR), 1997- 2005, undertaking research in several countries on water-related criteria and indicators for sustainable forest management, adaptive collaborative management of community forests and collaborative monitoring. Her wealth of experiences also includes designing, managing, and evaluating bilateral and multilateral funded projects. Herlina obtained a PhD from Monash University, Australia, on the political ecology of customary forest institutions in Central Sumatra, Indonesia. As Terrestrial Program Director, Herlina lead, manage and implement the terrestrial components of TNC’s program of work in Indonesia and will be accountable for terrestrial conservation outcomes in priority areas in Indonesia under the direction of the Country Director.

MUHAMMAD IMRAN AMIN, Coastal and Ocean Program Deputy Director

Imran joined TNC in June 2006 primarily to strengthen the Marine Program’s support to the Indonesian government in developing and strategizing marine policies. With close to 20 years’ experience in marine conservation, Imran has been a crucial member of Indonesian marine policy development teams, from presidential until ministerial laws and policies. Imran graduated from Marine Science of Bogor Agricultural University in 1996.

SAPTO HANDOYO SAKTI, External Affairs Director

Sapto joined TNC in April 2013. Sapto is responsible for the oversight, planning and implementation of a comprehensive development program that secures the significant financial resources from the private sector, foundations and the public sector within Indonesia to support our conservation goals in Indonesia.  He develops, implements and coordinates programs to affect government policy and finance across Indonesia.  Sapto comes to us from Sinar Mas Forestry (SMF) where he was Head of Corporate Communications and Public Relations.  Prior to that, Sapto was the General Manager (Head of Program Development) at Eka Tjipta Foundation, and Communications Director at Putera Sampoerna Foundation.  He has  also worked with WWF-Indonesia as Senior Manager for Communications and Outreach. Sapto has a post graduate Diploma in Business and Administration (PGDipBusAdmin) from the Massey University, Palmerston North, New Zealand and an MBA from Monash University Melbourne, Australia. He obtained his bachelor’s degree from IPB (Bogor Agricultural University) majoring in Climatology.

WAHJUDI WARDOJO, Senior Advisor for Terrestrial Policy

Mr. Wahjudi Wardojo was born in Tuban, Indonesia in 1950. He graduated in forestry from University of Gadjah Mada, Indonesia, and Michigan State University, East Lansing, USA, for his master degree. After his retirement from the Ministry of Forestry, he currently serves as a Senior Advisor for Terrestrial Policy for TNC Indonesia Program.  In this position he works closely with the TNC’s International Climate Policy Team at international, regional, and national levels and advices TNC in developing the Forest Carbon Program in Berau in particular and Indonesia Program in general. On behalf of TNC, he is also a member of Oversight Committee for Debt for Nature Swap Project under Tropical Forest Conservation Act 2 (TFCA 2), for Kalimantan. He is  also a member of United Nations on Sustainable Development Solutions Network (SDSN), Indonesia Chapter (2013), and a member of the Netherlands Academy on Land Governance (LANDac)’ Land Forum of Utrecht University, Netherlands (2013).

TRI SOEKIRMAN, Marketing and Communications Director.

Tri joined The Nature Conservancy in 2003 to lead the communications efforts for the Indonesia Marine Program, primarily providing strategy and direction to the program’s communications, outreach and conservation education programs. She also coordinated the country program’s partnership work and together with the Indonesia Partnership Team supports program managers on the selection, management and evaluation of partnerships. Tri brings with her more than 20 years of experience working in the communications and public relations field, having worked with global perception management firm Burson-Marsteller, SIMA PR and Marketing Services, and Monsanto Indonesia. Tri has an S1 degree in Sociology from the University of Indonesia.