Who We Are

PT Ceria Nugraha Indotama (Ceria) is a mining company established on March 18, 1991 based on Notarial Deed number 29 issued by Mestariany Habie, Bachelor of Law, in Ujung Pandang or Makassar, Indonesia. At present, Ceria is fully owned by Indonesian share holder.

In 2011, Ceria obtained a mining area with the size of 6785 hectares at Lapaopao Block through winning the auction as organized by the Indonesian Government. The affirmation of the winner of this auction was set forth in the Kolaka Regent’s Decree number 327 after which Ceria defeated 71 nationals and international companies participated in the auction.


Ceria acquired Mining License (Mining License / IUP for Exploration) in accordance with letter number 348 from Kolaka Regent in 2011. Then in 2012, as per letter number 177 from Kolaka Regent, this Mining License was upgraded from Mining License for Exploration to Mining License for Operation & Production.

Clear and Clean Certificate was received on November 8, 2013 with certificate number 817/Min/12/2013. License of Registered Exporter for Mining Products number 175/DAGLU/ET-TAMBANG/11/2012 was obtained on November 29, 2013; the first Export Permit Letter (SPE) number 1378/30/DJB/2017 was received on July 4, 2017, and the second Export Permit Letter with the number 1775/30.01/DJB/2018 was received on October 26, 2018.

The mining activities of Ceria is complemented by the Environmental License (AMDAL: ANDAL, RKL-RPL) which approved in 2013 by the Government through the Kolaka Regent’s Decree number 113.

Ceria is finishing the construction of nickel ore smelting and processing plant with Rectangular Rotary-kiln Electric Furnace (RKEF) to produce ferronickel (FeNi) and is developing processing plant for nickel and cobalt with High-Pressure Acid Leaching (HPAL) technology to produce the raw material for batteries.

The location of the project is in the Sub-District of Wolo, Kolaka Regency, South East Sulawesi Province, Indonesia. Kolaka can be reached through air transportation from Makassar and Kendari. The flight from Makassar to Pomalaa is within 50 minutes. The land transportation from Pomalaa to the mine site is within 2 hours.

Our Purpose

Our purpose is to create value-added nickel products and improve lives through sustainable and responsible mining.


To produce quality nickel and cobalt products by maximizing value through efficient industry best practices.


To become a world class nickel and cobalt company through efficient and sustainable business practices.


  • Safety – We emphasise safety as our top priority in our daily operational activities. We aim for a zero harm working environment.
  • Environment – We aim to protect the environment by complying to applicable standards and requirements.
  • Sustainability – We aim to contribute to the development of local communities and participate in local development.

Leadership Team

Ceria’s Board of Directors is responsible for the effective, efficient and prudent management of the Company. With a keen focus on sustainable growth, our Board of Directors and management teams are working diligently to execute the Company’s strategic plans and ensure the company fulfills its commitment to excellence in environmental and social responsibility.
Derian Sakmiwata

Derian Sakmiwata becomes the leader of this family business and was appointed President Director of PT Ceria Nugraha Indotama in 2014. The company is also owned together by Derian and Cherisha Sakmiwata Sampetoding.

A graduate of International Business Science from Griffith Australia University in 2013, he is now in charge of more than 1000 employee and manages a mining area with the size of 6785 hectares located in Wolo, Kolaka, South East Sulawesi. The mine has nickel ore reserves as much as 295 million metric tons.

Through Mining License is for the period of 20 years and with two times renewal options, 10 years respectively, Derian leads Ceria to construct a nickel ore smelting and processing plant.

Derian Sakmiwata
President Director
Cherisha Sakmiwata

Cherisha Sakmiwata was appointed as Finance Director at PT Ceria Nugraha Indotama since 2014. She is also running the company alongside with Derian Sakmiwata from Makasar office.

Cherisha Sakmiwata Sampetoding graduated from Griffith University of Australian in Business Major in Marketing and received her Bachelor Degree in 2013. She believe in having a great team work among employees and management as an essential factor of accomplishing and achieving the company’s goals.

Cherisha Sakmiwata
Director of Finance & Support

Djen Rizal was appointed as Deputy Director for Business & Government Relations of PT Ceria Nugraha Indotama in 2019. He is responsible for establishing and maintaining good communication and relationship with Government Officials, State Owned Entreprise (SOE), and Financial Institution officers, so that the company’s vision and mission can be achieved satisfactorily. Djen also involves with Business Development and Finance team for development and to ensure the Projects  (Smelter RKEF 4x72MVA and HPAL Nickel-Cobalt) will be delivered on schedule.

Djen Rizal graduated from the Engineering Faculty of University of Indonesia, majoring in Industrial Engineering, and has more than 28 years of experience in Business & Government Relations for Energy, Mineral Resources and Property Development Industries.

As a Deputy Director, Djen is committed to the Company’s goals by carrying out good mining practices concept and sustainable development.

Djen Rizal

Deputy Director for Business & Government Relations

Roimon Barus

Roimon Barus became a member of the Board of Directors at PT Ceria Nugraha Indotama starting in 2017 as the Smelter Project Director. A 1987 graduate of Metallurgical Engineering from the University of Indonesia has mature experience in Smelter, Engineering and EHS operations at PT Vale, Tbk.

He is currently overseeing the smelter project located in the district Wolo, Kab. Kolaka, Prov. Southeast Sulawesi. Roimon Barus leads the smelter project at PT Ceria Nugraha Indotama from 2017 – present.

Roimon Barus
Smelter Project Director

Aldo Namora joined PT Ceria Nugraha Indotama in 2017 as Head of Business Development. He has a Master’s Degree in Engineering background and a Bachelor’s Degree in Civil Engineering from the Bandung Institute of Technology and has 18 years of experience in business and project development since 2002.

Aldo carries out the main function of the company’s strategic business development which includes optimization of sustainable mining operations and investment in processing and refining facilities that the company is currently completing, namely the Rotary Kiln Electric Furnace (RKEF) facility to produce Ferronickel with a total capacity of 4x72MVA and a High-Pressure Acid Leaching facility (HPAL) to produce Mixed Hydro Precipitation with competitive Nickel and Cobalt content.

Aldo strives to develop the company’s business through identifying business opportunities and developing partnerships with potential business partners, such as contractors and suppliers, technology providers, and potential strategic spells, within the company’s main business fields as well as businesses and services that support the company’s business. Aldo is also actively involved in developing marketing strategies, identifying markets, and customers.

As Head of Business Development, Aldo is committed to achieving the company’s goals by encouraging business development through work plans, optimization of business activities, and efficient investment.

Aldo Namora

Head of Business Development


Ceria’s strategic plans in the future to produce quality nickel and cobalt products and becoming world class nickel and cobalt company.