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PT Kaldera Energi Nusantara is a leading coal sourcing and distribution company, delivering premium services and solutions for the needs of coal for industrial and power plants in Indonesia.

About Us


We started off in 2010 as a small-scale coal supplier company, handling the coal retail market from stockpile in Jakarta, Marunda, delivering and supplying coal to small factories by trucks. After gaining more and more networks and years of experience, the company expanded to make strategic partnerships with coal miners from the Sumatera and Kalimantan area, and secured working capital from institutional and banking sectors to support our operations.

Now, PT Kaldera Energi Nusantara has dedicated its operation to supplying the needs of domestic coal demand and distributing coal all over Indonesia. “Our goal is to give the best services and deliver the coal on time, maintaining a high standard of coal quality until delivered to our customers’ factories.”.

Our source of coal are from large to medium reputable mines, in South Kalimantan, East Kalimantan, South Sumatera and Bengkulu, with various calorific value to meet the specification of various segment industry and factories all across Indonesia.

We believe that our primary responsibility is to give our customers peace of mind – they don’t have to worry about running out of coal in their factory as a primary energy source to support their production needs. We strive to be the best, we always listen to each of our customer’s feedback and evaluation as our part of continuous improvement. Trust is the key, and that is what we build and maintain as our primary strength in relationships with our customers.

PT Kaldera Energi Nusantara

Vision & Mission

Our Vision

Kaldera aims to become the leading and trusted coal supplier in Indonesia. Supplying wide range of coal types focusing for domestic market demand. Kaldera strives continuously to improve product quality, services and performance in order to achieve a long term partnership with customers.

Our Mission

  • To maximize customer satisfaction by providing good quality coal with competitive price.
  • To support the needs of energy in Indonesia industrial sector, and provide a long term and sustainable coal supplies.
  • To generate employment and income for local communities that depends on coal mining field of work.
PT Kaldera Energi Nusantara

Corporate Values

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We are coal supplier company focusing for domestic market.

Focusing on certain target market is the key success for every company. We will not leave our local market customers even when the price or the export market demand is high. We are committed to serve the local market specifically.


We have strategic alliance with the coal miners, from Sumatera to Kalimantan.

We acquire and have close relationship with the coal miners ranging from the low calorific value to the high calorific value coal. The miners are working together with us based on exclusive agreement to ensure our product quality is stable and consistent.


We are serving you 24 hours.

We understand your concern on running out of coal in your factory. From the time you make the purchase order to us, we have the responsibility to ensure that your factory will not run out of coal and disrupt your production line and timing, and to deliver the coal on time as scheduled.

Our company culture is based on “KALDERA” values. By practicing these values on our business foundation, we are ready to strive and achieve continuous accomplishment.















PT Kaldera Energi Nusantara

Accreditation & Certification

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ISO (International Organization for Standardization) is an international standard-setting body consisting of representatives from the national standardization bodies of each country. In Greek, isos means equal. Application of ISO in a company is useful for:
1. Improving the company’s image
2. Improving the company’s environmental performance
3. Increasing the efficiency of operational activities
4. Improving organizational management by implementing planning, measuring and corrective actions (plan, do, check, act)
5. Improving the arrangement of the provisions of laws and regulations in terms of environmental management
6. Reducing business risk
7. Increasing competitiveness
8. Improving internal communication and good relations with various interested parties (stakeholders, shareholders, etc.)
9. Gaining the trust of consumers/work partners/financiers

PT Kaldera Energi Nusantara, is a company engaged in coal trading and has implemented ISO as an international standard in the field of corporate quality management systems, quality control and coal delivery. Currently, PT Kaldera Energi Nusantara has been tested and certified as a company that meets the requirements of ISO 9001:2015, ISO 14001: 2015, and 45001: 2018.

ISO 9001 : 2015 is an international standard in the field of quality management systems. An institution or organization that has received accreditation (recognition from another independent party) can be said to have met international requirements in terms of quality assurance management of the products or services it produces.

ISO 14001 : 2015 specifies requirements for an environmental management system that organizations can use to improve their environmental performance. ISO 14001:2015 is intended for use by organizations wishing to manage their environmental responsibilities in a systematic way that contributes to the pillars of environmental sustainability.

ISO 45001 : 2018 is an international standard that stipulates various requirements for an occupational health and safety management system or known as SMK3. These standards enable organizations to actively improve SMK3 performance to prevent work accidents.