
Leading and Trusted Coal Supplier in Indonesia
company information
From deep underground to your factory
PT Kaldera is dedicated to providing the demand of coal supply to industrial factories for domestic market, Indonesia. Our ambition is to provide a long term and sustainable coal supplies to our customers.
- Good quality coal with competitive price
- Focusing to supply for domestic market
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.

Kindness

Attentive

Leading

Decency

Excellence

Resilience

Accomplish

Our Services
Sustainable Supply
Being in the industry for years, we have secured a long-term constant supply from several mining companies in Kalimantan and Sumatera. Creating a sustainable supplies.

Quality Control
Our Quality Control team at the mine site is dedicated to secure only the best quality coal available and implement a high standard of quality control, before the coal loaded to the barge and delivered to our customers.

On-Time Delivery
Having a strong partnership with several tugboat and barge companies all around Indonesia, and by preparing the delivery time earlier from delivery schedule, we can provide ontime deliveries for our customers.

Payment Term
Adding value to our services, we can provide a payment term for our coal dedicated only for our loyal customers.
About Us
Latest News
Indonesian coal miners pump up manufacturing, eye European wintertime
I ndonesian coal miners are racing to boost manufacturing amid document rates as well as rising need from Europe ahead of winter months following a ban on the gas from…
Indonesia’s coal cost rises to 321.59 USD per heap in August
O ne more variable that likewise affected the rise in benchmark coal cost was the rise in coal needs from China, India and South Korea.
Indonesia's benchmark coal rate in…
Energy transition or energy confusion?
T he Japanese decision announced a month ago to cancel the construction of a coal-fired power plant in West Java seems to have originated on the Indonesian side. While global…