PT Mahakam Sumber Jaya · Company · Eco Mining Data

Company · sources as of 23 Oct 2026

PT Mahakam Sumber Jaya

20,292 ha · Kalimantan Timur · You see this dossier without an account.

Includes news mentions and reported events (signals).

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Right of reply on findings

Built from public sources (ESDM, AHU, KLHK) and ESMI satellite analysis. Not written or endorsed by the company. Every change is logged.

In short

1 permit is registered for this company.^[1]

Protected area: Not inside a protected area
Mining footprint (satellite): 1,673.1 ha of the 20,292 ha (8.2%) shows mining disturbance on satellite images.^[3]

Permits1^[1]Kementerian ESDM geoportal (Minerba / Monaresia Wilayah Pertambangan), via legacy Eco Mining Data harvest · signal
Mining footprint (satellite)1,673 ha^[3]Eco Mining Data computation: mining footprint (Cheng et al. 2026 · Maus et al. 2022 · ESMI digitised) × subject; inside and outside current ESDM permit geometries · signal
Permits in protected areas0 ha^[2]Eco Mining Data computation: current permit geometries (ESDM) × area; overlap with WDPA protected areas · signal

What we don’t know yet (23)

NO₂ in the air above background (satellite)
Schools within 5 km of mining footprint
Health facilities within 5 km of mining footprint

See all gaps

Open on the map Recovery on the map Plan restoration for these sites

Own boundaries (ESDM permits, WDPA protected areas); no satellite imagery.

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Under permit

20,292ha^[2]

Ending within 12 months

0^[1]

SDG scorecard

Three axes, never merged into one number

38/100

75/100

43/100

7 more goals have no data yet (see “What we don’t know yet”).

Biggest gaps: SDG 6 (Significant challenges) · SDG 15 (Significant challenges)

A · Context status

How the area is doing on measured SDG indicators (SDSN normalisation, 0–100).

Reliability C4 of 14 indicators with data · oldest input 31 Dec 2025 · 1 out of date

River water quality (pollution index) · 6.3.2
2 inputs · 20 Oct 2026 · current^[7]
3.2 IPSignificant challenges · 76/100
Air quality (ISPU, proxy for PM2.5) · 11.6.2
3 inputs · 9 Aug 2026 · out of date^[8]
56 ISPUChallenges remain · 75/100
Population below the national poverty line · 1.2.1
Data gap · source not connected yet · Needs: BPS Susenas (regency) / SDGs Desa · planned in S2
—
Stunting in children under five · 2.2.1
Data gap · source not connected yet · Needs: SKI / Riskesdas (Kemenkes) · planned in S2
—
Mortality from air pollution · 3.9.1
Data gap · source not connected yet · Needs: CAMS / Sentinel-5P exposure + GBD · planned in S2
—
NO₂ in the air above background (satellite) · 11.6.2
Data gap · no data for this subject
—
Lower-secondary completion rate · 4.1.2
Data gap · source not connected yet · Needs: BPS Indikator TPB / PODES · planned in S2
—
River stations above the pollution limit · 6.3.2
2 inputs · 20 Oct 2026 · current^[7]
100 %Major challenges · 0/100
Households with safe drinking water · 6.1.1
Data gap · source not connected yet · Needs: PODES (BPS) / SDGs Desa · planned in S2
—
Access to electricity · 7.1.1
Data gap · source not connected yet · Needs: PODES (BPS) / VIIRS night lights · planned in S2
—
Unemployment rate · 8.5.2
Data gap · source not connected yet · Needs: BPS Sakernas (regency) · planned in S2
—
Coastal sediment and tailings plumes · 14.1.1
Data gap · source not connected yet · Needs: Sentinel-2/3 plume detection · planned in S2
—
Tree cover left (canopy in 2000 minus loss since) · 15.1.1
1 inputs · 31 Dec 2025 · current^[6]
42.7 %Significant challenges · 43/100
Degraded land (UNCCD method) · 15.3.1
Data gap · source not connected yet · Needs: Trends.Earth (land cover, productivity, soil carbon) · planned in S2
—

B · Target gap and trend

Distance to RPJMN 2025–2029 / RAD TPB targets and the trend per indicator.

Reliability D0 of 2 indicators with data

Distance to RPJMN 2025-2029 / RAD TPB targets
Data gap · source not connected yet · Needs: Indikator TPB metadata (Bappenas) + RAD TPB per province/regency · planned in S2
—
Trend per indicator (on track / moderate / stagnating / decreasing)
Data gap · source not connected yet · Needs: Yearly series of the axis A indicators · planned in S2
—

C · Mining

Exposure to mining, shown raw. Not attribution: the causal model (DiD, synthetic control) follows in S3.

Reliability C4 of 10 indicators with data · oldest input 31 Dec 2019

Permits overlapping protected areas · 15.5
18 Oct 2026 · current^[2]
0 ha
Mercury / ASGM sites (unconfirmed signals) · 12.4
Visible to trusted partners
Mining footprint (satellite) · 15.3
77 inputs · 31 Dec 2019^[3]
1,673.1 ha
Reclamation gap (disturbed minus reclaimed) · 15.3
Visible with a free account
Forest lost in the last 5 data years · 15.2
1 inputs · 31 Dec 2025 · current^[6]
1,471.5 ha
Permits within 5 km of mangrove · 14.2

No imputation: an indicator without data stays visibly empty. Goalposts and thresholds are in the indicator register.

Facts

Permits held: 1

Who owns this

From this company up to its group and down to its permits. Every link shows where it comes from and how sure we are.

Registered holder

PT Mahakam Sumber JayaConfidence C

PT
1 permit

The name in the official permit register. That is not always the company that owns the business.

Beneficial owner (the people behind it)

Not available

The beneficial owner register of the Indonesian company authority (AHU / OSS) is only open under a formal agreement. Until then we do not guess names.

AHU: how to apply for access

Karunia Bara PerkasaownsStake not stated · Confidence C

Harum Energyowns0% stake · Confidence C

PT Mahakam Sumber JayaPTConfidence C

1 permitHolder since 10 Sept 2004

Owners above
- Karunia Bara PerkasaownsStake not stated · Confidence C
Owners above
- Harum Energyowns0% stake · Confidence C
Registered holder
- PT Mahakam Sumber JayaPTConfidence C
Permits and subsidiaries
- 1 permitHolder since 10 Sept 2004

The group

6 companies in this group hold 4 permits over 41,336 ha. This company's row is highlighted.

Karunia Bara PerkasaTop owner
Holds no permits itself
Harum Energy
Stake not statedHolds no permits itselfConfidence C
PT Mahakam Sumber JayaThis company
0% stake1 permit · 20,292 haConfidence C
PT Santan Batubara
100% stake1 permit · 14,222 haConfidence C
PT Bumi Karunia Pertiwi
100% stake1 permit · 4,172 haConfidence C
PT Karya Usaha Pertiwi
50.5% stake

Links and where they come from

PT Mahakam Sumber Jaya is owned by Harum EnergyConfidence C0% stakeSource: Wikidata Q118763637 — Mahakam Sumber Jaya (CC0 1.0), as of 23 Oct 2026
PT Mahakam Sumber Jaya is a subsidiary of Karunia Bara PerkasaConfidence CSource: Wikidata Q96100301 — Harum Energy (CC0 1.0), as of 23 Oct 2026

Holder changes

The holder history is part of the detail level. Sign in and complete your profile to see it. Sign in

More owners need a key

These sources would add owners and the people behind them. They are switched off until a key or agreement is in place.

OpenCorporatesParent companies and shareholders from company registers around the world.Waiting for a key
Get a key · OpenCorporates
AHU / OSS beneficial ownershipThe people who ultimately own and control an Indonesian company.Waiting for a keyNeeds a formal agreement
Get a key · AHU / OSS beneficial ownership

Ribbon thickness shows the stake where we know it. Dashed means a weaker or unstated link. A name is shown only for companies: natural persons are never named here.

Where does the ore go

From the mines of this company to the industrial parks that most likely process their ore. What we know, what we infer and what we cannot see are kept apart.

No processing sites known for this metal yet

For batubara we do not yet know the processing sites, so no chain can be drawn. Nickel is covered first.

Export, buyers and ships need a key

These stages stay empty until a key is in place. We show the gap instead of guessing.

UN ComtradeYearly exports by product and destination country.Waiting for a key
Get a key · UN Comtrade
aisstream.ioShips calling at the jetties, from live ship positions.Waiting for a key
Get a key · aisstream.io

Mining footprint

Physical land disturbance mapped from imagery (2018–2019). Pollution is measured separately and is not included.

Mining footprint (satellite, 2018–2019): 1,673.1 ha^[3]
Inside this permit area: 1,673.1 ha
Share of the area: 8.2 %
Footprint polygons: 77

Per source (own polygons)

Cheng et al. 2026 (2017–2022, land-use classes): 1,669 ha · 62^[4]
Maus et al. 2022 (2019 imagery): 2,552.2 ha · 15^[5]

The total counts land once where sources overlap (Cheng et al. 2026, then Maus et al. 2022, then ESMI digitised).

Forest loss

Tree-cover loss 2001–2025, where tree cover in 2000 was at least 30 %. Annual satellite data (Hansen / University of Maryland).

Tree-cover loss 2001–2025: 9,760.3 ha^[6]
Of which 2021–2025: 1,471.5 ha^[6]
Tree cover in 2000: 18,468 ha
Share of the 2000 tree cover: 52.8 %

Per year (last ten)

2016: 1,255.7 ha
2017: 404.7 ha
2018: 583.7 ha
2019: 276.1 ha
2020: 417.7 ha
2021: 353.1 ha
2022: 262.5 ha
2023: 461.1 ha
2024: 219.9 ha
2025: 174.9 ha

Adds up the 1 permits of this company; where permits overlap, the loss counts twice.

Loss means tree cover was removed: clearing, but also plantation harvest or fire. It is not a finding of illegal deforestation, and the data is yearly, not monthly.

Recovery after mining

What the land inside the mining footprint looks like from space, year by year (1990–2025)

Actively mined

Mining ground was still seen in the last few years.

Footprint polygons: 62
Ever disturbed: 1,484 ha
Vegetation back: 731 ha
Abandoned ≥ 5 years, still bare or water: 20 ha

Figures are sums over all polygons; the status of a group is the status with the largest area.

Area by status

Actively mined663 ha 40 %
Abandoned, bare ground1.5 ha 0 %
Abandoned, water-filled pit29 ha 2 %
Natural regrowth357 ha 21 %
Managed restoration374 ha 22 %
Converted to other use60 ha 4 %
Not visible at 30 m192 ha 11 %

Key years

First mining: 2000
Peak mining: 2016
Last mining: 2025
Mining stopped: 2023 · 3 years ago

Status per polygon

Free account · Status per polygon, with confidence, the rule that decided it and its life history, needs a free account.

Show on the map National overview

Satellite land cover, not reported reclamation: ESDM reclamation reports are not used. Sources: MapBiomas Indonesia Collection 5 (30 m, CC BY-SA 4.0), JRC Tropical Moist Forest; footprint Maus et al. 2022 and Cheng et al. 2026 (CC BY-SA 4.0); ESDM MODI permit layer. Method rec-1.0 · computed Oct 19, 2026

Promise versus reality

What was promised in public documents, next to what the satellite measures on the same land.

No sourced promises are registered for this company yet. Nothing is assumed: a promise appears here only after it was quoted from a public document and checked by a second reviewer.

Reclamation plans, PPKH obligations, reforestation commitments, sustainability-report targets and zero-deforestation pledges are measured against the recovery status and the forest-loss record of the same land.

How this is measured

A promise is a quote of a public document: the source link and its SHA-256 are shown, and it appears here only after review by a second person.
Delivered is the gain in revegetated land since the year of the promise, from the yearly land-cover maps (MapBiomas, to –) on the footprint polygons of the permit or company. Land that is mined again counts against it.
A per-year plan is multiplied by the years in its period. If the deadline lies beyond the data, the amount due is the linear share up to the last data year, and the state is on pace or behind, never missed.
The grade compares delivered with due: A from 90%, B from 70%, C from 40%, D below. The range follows the promise year plus or minus one year, because the maps are yearly.
A zero-deforestation pledge looks at tree-cover loss (Hansen, to –) in the years after the pledge year: A none, B within the noise (1 ha or 0.1% of the tree cover), C up to 1%, D more.
Next to the grade you see the mined land today, new tree-cover loss and how much land was opened versus reclaimed. Before and after frames come from the time machine.

A grade compares a number in a document with a number from space. It does not judge intent or legality.

Company profile and coverage

What is realistically knowable for this kind of company, what we have, and what is still missing

Coverage has not been computed for this company yet.

Visible with a free account · company profile (identifiers, PROPER, EITI)Sign in

Permits

Visible with a free account · Permit list and numbersSign in

Timeline

Visible with a free account · Timeline: permit changes, confirmed alerts, newsSign in

Own statements vs independent coverage

Own statements are published by the organisation itself (press releases, IDX disclosures, its own website). Independent coverage comes from media, NGOs, courts, government and aggregators.

Own statement 0 own statements

No own statements found.

Independent 0 independent articles

No independent coverage found.

Mention volume

Articles per month that mention the organisation (last 36 months).

Tone over time

Average tone of the articles per month, from −1 (negative) to +1 (positive).

Right of reply

Incidents linked to this organisation after review, with its reply.

No reviewed incidents are linked to this organisation.

Observations

Latest reading per station in the region

Visible with a free account · Measurements per stationSign in

Financial and production figures

Company-published figures, not ESMI measurements.

History of this profile

Same log for everyone · nothing is deleted

No changes by the company yet.

What we don't know yet

23 gaps

Population below the national poverty line
Needs: BPS Susenas (regency) / SDGs Desa
Not connected yet
Stunting in children under five
Needs: SKI / Riskesdas (Kemenkes)
Not connected yet
Mortality from air pollution
Needs: CAMS / Sentinel-5P exposure + GBD
Not connected yet
NO₂ in the air above background (satellite)
No data for this subject
Lower-secondary completion rate
Needs: BPS Indikator TPB / PODES
Not connected yet
Households with safe drinking water
Needs: PODES (BPS) / SDGs Desa
Not connected yet
Access to electricity
Needs: PODES (BPS) / VIIRS night lights
Not connected yet
Unemployment rate
Needs: BPS Sakernas (regency)
Not connected yet
Coastal sediment and tailings plumes
Needs: Sentinel-2/3 plume detection
Not connected yet
Degraded land (UNCCD method)
Needs: Trends.Earth (land cover, productivity, soil carbon)
Not connected yet
Distance to RPJMN 2025-2029 / RAD TPB targets
Needs: Metadata Indikator TPB (Bappenas) + RAD TPB per province/regency
Not connected yet
Trend per indicator (on track / moderate / stagnating / decreasing)
Needs: Yearly series of the axis A indicators

Sources

Kementerian ESDM geoportal (Minerba / Monaresia Wilayah Pertambangan), via legacy Eco Mining Data harvest · geoportal.esdm.go.id · retrieved 18 Oct 2026 · signal · unknown
Eco Mining Data computation: current permit geometries (ESDM) × area; overlap with WDPA protected areas · computed by Eco Mining Data · as of 18 Oct 2026 · signal · derived from the ESDM permit layer and WDPA (WDPA terms apply)Union of current permit geometries clipped to the subject; intersection with protected-area polygons; geodesic area
Eco Mining Data computation: mining footprint (Cheng et al. 2026 · Maus et al. 2022 · ESMI digitised) × subject; inside and outside current ESDM permit geometries · doi.org · computed by Eco Mining Data · as of 31 Dec 2019 · signal · derived from Cheng et al. 2026 and Maus et al. 2022 (CC BY-SA 4.0), ESMI digitised land and the ESDM permit layerFootprint polygons clipped to the subject (geodesic area), counted once where sources overlap (Cheng > Maus > ESMI); the part inside the union of current permit geometries vs outside known permit boundaries (ESDM). Outside is not a finding of illegality: it can be a data gap or an older permit.
Cheng et al. 2026 · Mining land-use classes inside global mining polygons (South-Eastern Asia) · doi.org · as of 31 Dec 2022 · signal · CC BY-SA 4.0
Maus et al. 2022 · Global-scale mining polygons (Version 2) · doi.org · as of 31 Dec 2019 · signal · CC BY-SA 4.0
Hansen Global Forest Change GFC-2025-v1.13 · glad.earthengine.app · as of 31 Dec 2025 · confirmed · CC BY 4.0Hansen, M. C. et al. 2013. High-Resolution Global Maps of 21st-Century Forest Cover Change. Science 342: 850-53. Data: Global Forest Change 2000-2025 (v1.13), University of Maryland.
KLHK Onlimo water-quality monitoring, via legacy MI · retrieved 18 Oct 2026 · signal · unknown

Show the numbers

Year	Mining ground	Bare ground	Water	Built-up	Oil palm	Farmland	Tree crops	Shrubs	Forest
1990	0	5	0	0	1	8	0	646	1,347
1991	0	4	0	0	1	14	0	644	1,343
1992	0	3	0	0	1	17	1	1,120	865
1993	0	2	0	0	1	22	1	1,261	720
1994	0	0	0	0	1	24	1	1,361	620
1995	0	0	0	0	1	22	29	1,379	576
1996	0	4	0	0	1	20	29	1,576	377
1997	0	18	0	0	1	16	29	1,911	31
1998	0	34	0	0	1	16	29	1,911	16
1999	0	34	0	0	1	15	29	1,912	16
2000	11	22	0	0	1	13	73	1,871	16
2001	12	16	0	0	1	16	87	1,859	16
2002	17	18	0	0	1	17	102	1,836	16
2003	17	17	2	0	1	19	99	1,837	16
2004	6	29	3	0	1	25	94	1,833	16
2005	5	28	3	0	1	25	86	1,842	16
2006	4	26	3	0	1	30	75	1,852	16
2007	5	56	3	0	2	31	52	1,843	16
2008	6	83	3	0	2	30	21	1,847	16
2009	9	137	3	0	2	32	5	1,804	16
2010	25	141	3	0	2	32	5	1,784	15
2011	26	313	20	0	2	33	3	1,598	12
2012	643	273	30	0	2	45	3	1,002	9
2013	810	279	34	0	2	45	3	827	8
2014	893	266	31	0	2	56	3	748	8
2015	936	268	51	2	2	69	4	672	4
2016	963	229	52	4	1	76	11	667	4
2017	839	322	61	18	1	139	10	613	4
2018	905	300	65	18	2	168	14	531	4
2019	951	258	76	21	2	195	18	483	4
2020	900	224	83	21	8	252	27	489	3
2021	823	171	99	29	13	331	29	512	1
2022	760	107	97	33	15	276	121	599	1
2023	658	68	103	33	15	277	167	684	1
2024	553	49	96	33	21	259	212	784	1
2025	328	26	58	36	39	257	436	823	4

Mining ground
Bare ground
Water
Built-up
Oil palm
Farmland
Tree crops
Shrubs
Forest

Peak mining 963 ha in 2016. In 2025: shrubs 823 ha, tree crops 436 ha, mining ground 328 ha.

Show the numbers

Year	Mining ground	Bare ground	Built-up	Oil palm	Farmland	Tree crops	Shrubs	Forest
1990	0	5	0	1	8	0	646	1,347
1991	0	4	0	1	14	0	644	1,343
1992	0	3	0	1	17	1	1,120	865
1993	0	2	0	1	22	1	1,261	720
1994	0	0	0	1	24	1	1,361	620
1995	0	0	0	1	22	29	1,379	576
1996	0	4	0	1	20	29	1,576	377
1997	0	18	0	1	16	29	1,911	31
1998	0	34	0	1	16	29	1,911	16
1999	0	34	0	1	15	29	1,912	16
2000	11	22

PT Mahakam Sumber Jaya

Is this your company? Claim the profile for free with your registration number or work e-mail.

SDG scorecard

A · Context status

B · Target gap and trend

C · Mining

Facts

Who owns this

The group

Holder changes

Where does the ore go

Mining footprint

Per source (own polygons)

Forest loss

Per year (last ten)

Recovery after mining

Area by status

Key years

Status per polygon

Promise versus reality

Company profile and coverage

Permits

Timeline

Own statements vs independent coverage

Own statement 0 own statements

Independent 0 independent articles

Mention volume

Tone over time

Right of reply

Observations

Financial and production figures

History of this profile

What we don't know yet

Sources

Promise versus reality

Where does the ore go

Own statements vs independent coverage

Own statement 0 own statements

Independent 0 independent articles

Mention volume

Tone over time

Right of reply

Media timeline

Recovery after mining

Area by status

Key years

Status per polygon

Who owns this

The group

Holder changes