Board of Directors

Justarina Naiborhu

Justarina Naiborhu

President Director

Ms. Naiborhu brings strong in-depth experiences in the Indonesian capital markets. She has served as President Director of PT Toba Bara Sejahtra Tbk since 2011. Prior to joining Toba Bara, she spent 8 years with CIMB group with the latest position as President Director of PT CIMB-Principal, an asset management business principally located in Indonesia including as a Director at PT GK-Goh Securities and PT CIMB Securities in Jakarta. She began her career with PT Bursa Efek Indonesia (Indonesia Stock Exchange) and continued at PT Danareksa (Persero). Ms. Naiborhu graduated from Institut Pertanian Bogor, received an MSc degree from Reading University, UK, and an MM degree from the University of Indonesia. ...

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Pandu Sjahrir

Pandu Sjahrir

Director

Mr. Sjahrir has significant experience in international capital markets in both buy-side and investment focused roles. He has served as Director of PT Toba Bara Sejahtra Tbk since 2011. Prior to joining Toba Bara, Mr. Sjahrir was an investment professional at Matlin Patterson, a global investment firm based in New York. He has also held positions at Byun & Co and Lehman Brothers. Mr. Sjahrir received his BA from the University of Chicago and his MBA from the Stanford Graduate School of Business. ...

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Arthur Simatupang

Arthur Simatupang

Director

Mr. Arthur Simatupang has served as Director of PT Toba Bara Sejahtra Tbk since 2011. Mr. Simatupang is also the President Director of PT Indomining and previously was one of the directors of our largest mine, PT Adimitra Baratama Nusantara from 2007 to 2012. He previously worked at PT Indofood Sukses Makmur Tbk, one of the premier manufacturing companies for consumer products in Indonesia for more than six years. Since 2006 he has been actively involved in the Toba Sejahtra group. Mr. Simatupang received his BBA in International Business from Seattle University and Master of Commerce in Finance & Accounting from the University of Sydney. ...

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Sudharmono Saragih

Sudharmono Saragih

Director

Mr. Sudharmono Saragih has been a Director of the Company since 2012. Prior to this, he was a General Manager Operational of the Company. Additionally, he previously served as Project Manager at PT Toba Sejahtra from 2011 until 2012. Prior to that, he was the Site Manager of PT Raja Kutai Baru Makmur, Ancora Group (2010-2011), Operation Manager of PT Karya Wijaya Aneka Mineral, Harita Group (2009-2010), Site General Manager of PT Agrabudi Jasa Bersama, Titan Mining Indonesia Group (2009), Operation General Manager of PT Riau Bara Harum, Andaru Resources Group (2008-2009); PT Kaltim Prima Coal (2004-2005) with the latest position as Production Superintendent. He graduated with a Bachelors Degree in Bandung Institute of Technology majoring in Mining Engineering – General Mining. ...

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