Bukit Asam

What Bukit Asam does

PT Bukit Asam (Persero) Tbk (IDX: PTBA) is an Indonesian state-owned thermal coal mining company headquartered in Tanjung Enim, South Sumatra, founded in 1919 and operated as a member of the MIND ID state mining holding company. The company's core business is coal extraction and distribution, anchored by long-term, government-mediated supply contracts with state utility PLN for baseload power plants on the Java grid, supplemented by direct sales to industrial smelters and manufacturers, and exports to international thermal coal markets. PTBA operates integrated rail and port logistics infrastructure, has reported 9% year-on-year growth in coal output for January-September 2025, and is diversifying into value-added downstreaming (Coal to DME, SNG, and Kalium Humat) under its 'Sustainability Through Technology' strategy.

Beyond its coal foundation, PTBA is executing an energy transition through a renewable energy portfolio that currently totals approximately 1.2 MWp of installed solar capacity across three operational sites: the 241 kWp PLTS at Soekarno-Hatta Airport (since October 2020), the 400 kWp PLTS along the Bali-Mandara Toll Road (since September 2022), and the 303.1 kWp PLTS Timah Industri in Cilegon Industrial Estate (since June 2025), operated by wholly-owned subsidiary PT Bukit Energi Investama under a 25-year Power Rental and BOOT scheme. PTBA holds more than 250 hectares of reclaimed post-mining land ready for solar development and in July 2026 signed an MoU with Pertamina New & Renewable Energy (PNRE) to scale additional PLTS capacity aligned with RUPTL 2025-2034. The company also participates in MIND ID's US$3 billion integrated bauxite-alumina-aluminum downstream complex in West Kalimantan.

Commercially, PTBA sells coal through direct and government-coordinated sales channels to enterprise and utility customers domestically and abroad, with pricing negotiated rather than publicly disclosed. Its green business unit generates additional revenue via solar power purchase and BOOT arrangements with state enterprises and industrial counterparties (Angkasa Pura II, Jasa Marga, Timah Industri). The company runs community-facing sustainability programs including the BA-MAXI mangrove rehabilitation initiative (anchored by the NUSA seedling center producing 500,000-650,000 mangrove seedlings annually), the EcoGrow Mom women farmer empowerment program, and scholarship programs for children in 3T (remote) regions, positioning its ESG profile alongside MIND ID's 15.5% GHG reduction target for 2030.

Name

Bukit Asam

Legal name

PT Bukit Asam (Persero) Tbk

Website

https://ptba.co.id

Company type

Public

Founded year

1919

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

PT Bukit Asam (PTBA) is an Indonesian state-owned coal miner under MIND ID, producing thermal coal for state utility PLN and industrial buyers while expanding into solar power, coal downstreaming (DME, SNG, Kalium Humat), and mangrove rehabilitation.

Ownership category

akta.pro rank

Headquarters

HQ city

Palembang

HQ country

Indonesia

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Supply Chain, Infrastructure, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Coal Mining and Sales: Bukit Asam extracts and sells thermal coal primarily to state-owned utility PLN and industrial customers domestically and internationally. Output grew 9% year-on-year for January-September 2025.
2. Government Contracted Coal Supply: Supply contracts signed with Indonesia's energy ministry ESDM for medium-rank coal to state-owned power plants on the Java grid to address power deficits.
3. Renewable Energy Generation (PLTS): Revenue from solar power generation assets including PLTS at Soekarno-Hatta Airport, Bali Mandara Toll Road, and Cilegon Industrial Estate. Total PLTS portfolio reaching 1.2 MWp.
4. Downstream Processing (via MIND ID): Participation in MIND ID's US$3 billion integrated bauxite-alumina-aluminum downstream project in West Kalimantan, handling 6 million tons of bauxite ore annually to produce 2 million tons of alumina per year.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

PT Bukit Asam (PTBA) is an Indonesian state-owned coal mining company that extracts and sells thermal coal (medium-rank, GAR 5,200 kcal/kg) to state-owned utility PLN and industrial customers, supported by integrated rail and port logistics infrastructure. The company has diversified into coal downstreaming (Coal to DME, Synthetic Natural Gas, Kalium Humat), solar power generation (PLTS) assets across airports, toll roads and industrial estates, and environmental rehabilitation programs.

Product overview

PT Bukit Asam (PTBA) is an Indonesian state-owned coal mining company operating under MIND ID that has diversified into a multi-segment energy portfolio. Its core business is coal mining and distribution, supported by integrated infrastructure and logistics services. Beyond its coal foundation, the company is executing an energy transition strategy organized around four pillars: (1) Coal Mining — production and distribution of coal for domestic and export markets; (2) Infrastructure & Logistics — dedicated rail and transport networks for coal distribution; (3) Energy & Downstreaming — coal conversion into higher-value products including Coal to DME, SNG (Synthetic Natural Gas), and Kalium Humat, alongside renewable energy development; and (4) Green Business — a portfolio of solar power plants (PLTS Soekarno-Hatta at 241 kWp, PLTS Bali Mandara at 400 kWp, and PLTS Timah Industri in Cilegon at 303.1 kWp), biomass co-firing, and the BA-MAXI mangrove rehabilitation initiative anchored by the NUSA seedling center. The company also operates community-facing programs including the EcoGrow Mom women farmer empowerment initiative and scholarship programs for remote-area students. PTBA's solar portfolio totals approximately 1.2 MWp, with a MoU signed with Pertamina NRE in July 2026 to develop additional PLTS on post-mining land.

Differentiator

Problem solved

Functional benefit

Products and services

• Coal Mining Core coal production and distribution business: extraction of thermal coal (medium-rank, GAR 5,200 kcal/kg) through mine potential mapping, optimized reserve management, and sale to state-owned utility PLN and industrial customers for power generation and industrial processes, serving both domestic and export markets.
• Infrastructure & Logistics Integrated logistics and infrastructure services strengthening the energy supply chain through dedicated transportation routes and high-capacity rail systems for efficient coal distribution from mine to port and customer.
• Coal to DME (Dimethyl Ether) Downstream coal product: Dimethyl Ether (DME), a cleaner-burning fuel alternative produced from coal through downstream processing, adding value to coal feedstock while reducing emission intensity.
• SNG (Synthetic Natural Gas) Downstream coal product: Synthetic Natural Gas (SNG) produced from coal feedstock, contributing to value-added product diversification and emission reduction versus direct coal combustion.
• Kalium Humat (Potassium Humate) Downstream coal derivative: Potassium Humate (Kalium Humat), a value-added product with applications in agriculture and industry, produced via coal processing.
• PLTS Soekarno-Hatta (Airport Solar Power Plant) A 241 kWp grid-connected solar photovoltaic installation at Soekarno-Hatta International Airport's AOCC building (720 solar panels), supplying clean electricity to support airport operations under cooperation with PT Angkasa Pura II. Operational since October 1, 2020.
• PLTS Tol Bali Mandara (Toll Road Solar Power Plant) A 400 kWp solar photovoltaic installation along the Bali-Mandara Toll Road supplying electricity for street lighting, operational offices, and toll gates, built in cooperation with PT Jasa Marga (Persero) Tbk. Operational since September 2022.
• PLTS Timah Industri (Cilegon Industrial Solar Power Plant) A 303.1 kWp off-grid solar power plant operated by PTBA subsidiary PT Bukit Energi Investama (PT BEI) in the Cilegon Industrial Estate, integrated with the estate's PLTGU network and supplying electricity to PT Timah Industri under a 25-year Power Rental and BOOT scheme. Operational since June 2025.

Quantifiable outcome

• 9% year-on-year increase in coal output (January-September 2025)
• +3 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Pertamina New & Renewable Energy (PNRE)coreStrategic or Co-development Partner · 2 July 2026PTBA and Pertamina New & Renewable Energy (PNRE) signed a Memorandum of Understanding (MoU) for the joint development of Solar Power Plant (PLTS) projects on PTBA's post-mining land. The partnership aims to accelerate national energy transition and create sustainable value, with PTBA contributing land assets (over 250 hectares of reclaimed post-mining areas) and PNRE contributing renewable energy expertise. This synergy is aligned with RUPTL 2025–2034 and positions PTBA's green business portfolio for green funding opportunities.
• PT Angkasa Pura IIcoreStrategic or Co-development PartnerStrategic cooperation for the construction of a 241 kWp Solar Power Plant (PLTS) at the Airport Operation Control Center (AOCC) building of Soekarno-Hatta International Airport. The PLTS consists of 720 solar panel units using photovoltaics technology and has been operational since October 1, 2020, providing clean energy for airport operations.
• PT Jasa Marga (Persero) TbkcoreStrategic or Co-development PartnerStrategic cooperation for the construction of a 400 kWp Solar Power Plant (PLTS) along the Bali-Mandara Toll Road. The installation powers street lighting, operational offices, and toll gates, and has been operational since September 2022. The project supported the G20 Summit in Bali.
• PT Timah IndustricoreStrategic or Co-development PartnerPLTS Timah Industri with 303.1 kWp capacity operated by PTBA's subsidiary PT Bukit Energi Investama (PT BEI) in the Cilegon Industrial Estate. Operates off-grid but integrated with the PLTGU industrial zone network under a 25-year Power Rental and BOOT scheme, providing sustainable electricity to PT Timah Industri.
• PKBM PesonaminorStrategic or Co-development PartnerPartnership with Pusat Kegiatan Belajar Masyarakat (PKBM) Pesona to provide education access to children on Pulau Tegal, a 3T (outermost, furthest, most isolated) region. Since 2017, PTBA has supported the school with transportation (boat), solar power (PLTS), and scholarships for children to continue education at boarding schools in Tanjung Enim.
• KTH Mutiara Hijau IcoreStrategic or Co-development PartnerCollaboration with Kelompok Tani Hutan (KTH) Mutiara Hijau I in mangrove rehabilitation under the BA-MAXI (Bukit Asam Mangrove Nexus Initiative) program in Pasir Sakti, Lampung Timur. KTH produces ~500,000 mangrove seedlings annually using the SAM-SAKTI tidal-based method. PTBA supports with funding and partnership coordination; KTH has 69 members including 29 women.
• MIND ID (Mining Industries Indonesia)coreOthersMIND ID is the state mining holding company that manages Bukit Asam (PTBA) along with other member companies including Inalum, Indonesia Chemical Alumina, and PT Timah. MIND ID targets a 15.5% GHG emissions reduction by 2030 and is coordinating a US$3 billion integrated bauxite-alumina-aluminum downstream project involving Bukit Asam, Inalum, and Antam in West Kalimantan.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• PT Aneka Tambang (Antam): MIND ID sister state-owned miner focused on nickel, bauxite, and gold. Sister under the same holding, providing cross-comparison on Indonesian state-mining strategy and MIND ID coordination.
• PT Timah (Persero) Tbk: MIND ID sister state-owned tin miner and a counterparty for PTBA's PLTS Timah Industri solar project. Comparable Indonesian state-owned miner with parallel transition initiatives.
• PT Indonesia Asahan Aluminium (INALUM): MIND ID sister company leading the US$3B integrated bauxite-alumina-aluminum project in which PTBA participates. Directly comparable as a MIND ID state-owned entity executing mineral downstreaming.

Direct peers

• PT Berau Coal Energy: Indonesian thermal coal producer based in East Kalimantan. Direct peer in Indonesian thermal coal extraction, logistics, and Asian export markets.
• Whitehaven Coal: Australia-listed pure-play thermal and metallurgical coal miner exporting to Asia. Comparable to PTBA in serving the same Asian thermal coal demand pool exposed to China/India.
• Adaro Energy Indonesia: Indonesia's largest private thermal coal producer, listed on IDX (ADRO). Directly comparable to PTBA in product (thermal coal), customer base (PLN, Asia exports), and Indonesian regulatory environment.
• Banpu Public Company: Thailand-listed integrated energy company with thermal coal mining and renewables. Comparable regional Asian coal operator executing parallel diversification into solar and gas.

Regional players

• PT Vale Indonesia: IDX-listed nickel miner (INCO) operating in Indonesia. Comparable as a large Indonesian-listed mining operator with government-linked shareholder structure and integrated mineral processing.

Broad incumbents

• Peabody Energy: US-listed global thermal coal producer. Broad incumbent with overlapping thermal coal franchise and parallel transition/diversification strategy.
• Glencore: Global diversified mining and commodities trader with major thermal coal exposure. Comparable as a broad incumbent in coal trading, mining, and energy commodity sales worldwide.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/BukitAsamPTBA
• YouTubeyoutube.com/channel/UC0dK2FdtrEeenwBlrATkBlQ/videos
• Facebookfacebook.com/BukitAsamOfficial
• LinkedInlinkedin.com/company/pt-bukit-asam-persero-tbk
• Instagraminstagram.com/bukitasamptba
• TikToktiktok.com/@bukitasam_official

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Bukit Asam