Who gains from saving nature
Ledger 1 : 33 — For each dollar financing nature-based solutions in 2023, about $33 financed activities harmful to nature. (UNEP)
Cases / Mining · Venezuela · 2011–2026

Orinoco Mining Arc: decree, state gold business and measured harm

Nature's voice · report
Over 140,000 hectares of my Venezuelan Amazon primary forest were lost in the four years to 2020; most of the hotspots lie within the Orinoco Mining Arc, according to MAAP.
Did nature suffer? Yes. Harm is on record. Disputed
Recorded
  • River-based mining in the Arc took more than 1,800 hectares of my forest between 2017 and 2020, according to MAAP. MAAP / Amazon Conservation
  • In 2011 sampling on my Caura River, 92% of 152 hair samples from women in five communities exceeded the WHO reference of 2 mg/kg; piscivorous fish carried up to 1.80 mg/kg in a 2010 study. Fundación La Salle / WCS / Universidad de Oriente
  • OHCHR reported in 2020 that high levels of mercury had been detected in Indigenous communities living downstream of mines on my rivers. UN Human Rights Office (OHCHR)
  • Since April 2020 six of my rivers, five of them major Orinoco tributaries, have been open to dredge mining by ministerial resolution, according to the UN Fact-Finding Mission. UN Independent International Fact-Finding Mission on Venezuela
  • Over 140,000 hectares of my forest were lost.
    Primary forest loss in the Venezuelan Amazon in the four years to 2020 (University of Maryland data, MAAP #155).
  • Over 1,800 hectares of my forest were lost.
    River-based mining in the Arc, 2017–2020 (MAAP #155).
What the record lacks: 3 none on record · 5 not disclosed · 2 insufficient · 1 not measured · 7 disputed · 2 unclear See the gaps
Accounts of the harm differ
Effect of the Arc on mining outside authorisation and on the environment

A February 2016 presidential decree opened a 111,843.70 km² zone south of the Orinoco to state-led mining of gold, diamonds, coltan, iron and bauxite. UN bodies reported an expansion of mining outside authorisation, mercury exposure among downstream Indigenous communities and no published environmental budget.

111,843.70 km²Area opened to state-led mining by Decree 2.248 (February 2016)
Figure given by OHCHR; IPEN gives 111,846 km². The UN Fact-Finding Mission adds 1,754 km² for the Ikabarú area.

Status As of October 2026: a new Ley de Minas was approved in April 2026; the 2016 nullity petition at the Supreme Court had not been answered as of September 2022; no environmental budget on record.

What?
A February 2016 decree opened a 111,843.70 km² zone south of the Orinoco to state-led mining of gold, diamonds, coltan, iron and bauxite. UN bodies reported an expansion of mining outside authorisation, mercury exposure in downstream Indigenous communities and no published environmental budget. UN Human Rights Office (OHCHR)
Where?
Four areas along the south bank of the Orinoco in northern Bolívar state, with small parts in Amazonas and Delta Amacuro; an Ikabarú area near Brazil was announced but, per the UN Mission, never legally declared. UN Independent International Fact-Finding Mission on Venezuela
When?
Decree 2.248 of 24 February 2016; preceded by the 2011 nationalisation and followed by the April 2020 rivers resolution and the April 2026 mining law. UN Human Rights Office (OHCHR)
Who?
Gained
Lost
Harmed
Why?
The decree's stated aim was to generate state revenue and diversify resources after the collapse of oil revenue, organising mining under principles of sovereignty, respect for Indigenous peoples, transparency and sustainability (OHCHR summary). UN Human Rights Office (OHCHR)
How?
State joint ventures and strategic alliances, military-owned companies and the BCV as sole legal gold buyer, with the armed forces empowered to safeguard operations. UN Independent International Fact-Finding Mission on Venezuela
6 of 6 questions answered from the record

What happened

The record, in order.

On 24 February 2016 Decree No. 2.248 (Official Gazette 40.855) created the "Zona de Desarrollo Estratégico Nacional Arco Minero del Orinoco". OHCHR summarised its stated objectives as organising mining in Amazonas, Bolívar and Delta Amacuro, diversifying state resources and regulating the exploitation of gold, diamonds, coltan, iron and bauxite through miners, small mining companies and larger public, private and mixed companies, "under the principles of defence of national sovereignty, respect for indigenous peoples, transparency and sustainability". According to the UN Fact-Finding Mission, article 13 of the decree gave the armed forces (FANB) power to "safeguard, protect, and maintain the harmonious continuity of the operations and activities of the Strategic Industries".

The decree followed Decree No. 8.413 of 23 August 2011, which nationalised gold mining, and Decree-Law No. 2.165 of 30 December 2015, which required all mined gold to be sold or delivered to the Central Bank of Venezuela (BCV). The military-owned company CAMIMPEG was created on 10 February 2016. Corporación Venezolana de Minería (CVM) became the parent of eight state companies and 23 mining areas; between 2016 and 2018 it took part in at least five mixed companies and close to 70 strategic alliances for processing plants, and by November 2018 more than 500 strategic alliances with small-scale miners existed. In October 2018 the state company Minerven formed a joint venture, MIBITURVEN, with a company that the UN Mission said was controlled by Alex Nain Saab Morán.

In 2016 President Maduro announced investment and operating agreements with foreign companies with an estimated value of US$5.5 billion; the UN Mission wrote that "only a limited number of contracts eventually materialised". The opposition-led National Assembly adopted a resolution annulling the decree in June 2016, which the executive disregarded. A constitutional nullity petition filed at the Supreme Court in 2016 remained unanswered as of September 2022. In April 2020 Resolution No. 0010 of the mining ministry authorised dredge mining for gold and diamonds in six rivers (Auro, Caura, Caroní, Cuchutero, Cuyuní and Yuruari).

OHCHR (A/HRC/44/54, July 2020) reported that chemical mercury was widely used despite a 2016 nationwide ban and that high levels of mercury had been detected in Indigenous communities living downstream. MAAP, using University of Maryland data, reported that the Venezuelan Amazon lost over 140,000 hectares of primary forest in the four years to 2020, with most hotspots inside the Arc. The UN Fact-Finding Mission wrote in 2022 that the Arc, officially intended to streamline extraction and control illegal mining, "actually resulted in an expansion of illegal mining both within and beyond the formal perimeters".

On the money side, OHCHR reported that miners paid about 10–20% of ore mined to criminal or armed groups and about 15–30% to mill owners, and that gold was bought at about 25% below international prices. Officials claimed rising output: in May 2026 Minister Héctor Silva was reported as giving 9.5 tonnes of gold for 2025 and a projection of about 12 tonnes for 2026. In 2026 a new Ley de Minas (131 articles) was approved by the National Assembly on 9 April, giving the BCV a preferential right to buy gold, and a decree of 4 February 2026 reorganised the mining ministry. No environmental budget, impact study or remediation fund for the Arc is on record.

  1. 2011Decree 8.413 nationalises gold mining (23 Aug); gold regions declared security zones
  2. 2015Decree-Law 2.165 requires all mined gold to be sold to the BCV (30 Dec)
  3. 2016CAMIMPEG created (10 Feb); Decree 2.248 creates the Arc (24 Feb); National Assembly resolution annulling it ignored (Jun); nationwide mercury ban (5 Aug)
  4. 2017Decree 3.188 identifies 23 mining zones, all in Bolívar (5 Dec); constitutional law gives the BCV an exclusive role in buying Arc gold (29 Dec)
  5. 2018MIBITURVEN joint venture formed (Oct); BCV reports buying 9.2 t of gold domestically
  6. 2020Resolution 0010 opens six rivers to dredge mining (7/8 Apr); OHCHR report A/HRC/44/54 presented (15 Jul)
  7. 2022MAAP #155 on forest loss (14 Jun); UN Fact-Finding Mission publishes A/HRC/51/CRP.2 (20 Sep)
  8. 2026Mining ministry reorganised by Decree 5.239 (4 Feb); new Ley de Minas approved (9 Apr); official production claim for 2025 and projection for 2026 (May)

What was said

Claims, in the words of those who made them.

“actually resulted in an expansion of illegal mining both within and beyond the formal perimeters”

“Authorities should take immediate steps to end labour and sexual exploitation, child labour and human trafficking”

Michelle Bachelet, UN High Commissioner for Human Rights · 2020-07-15 · UN News

“everyone in Guayana knows that a miner will be a miner all his life. Before, we tried to pull them out of mining areas to engage them in other activities, but it didn't work.”

“have benefited and continue to benefit financially from gold mining-related activities in the Arco Minero”

“destroying mother earth without any mercy”

“degrade Venezuela's infrastructure and natural environment through economic mismanagement and confiscatory mining and industrial practices”

Where accounts differ

Each party's account, side by side, with its source. The record does not settle these points; it shows them.

Surface area of the Orinoco Mining Arc
International bodies
OHCHR

111,843.70 km².

UN Human Rights Office (OHCHR)
Communities and civil society
IPEN

111,846 km².

IPEN / Biodiversity Research Institute
International bodies
UN Fact-Finding Mission

Adds 1,754 km² for the Ikabarú area (a total of 12.4% of the national territory); a Spanish NGO dossier gives 11.843,70 km², which the Mission treats as a likely typing error.

UN Independent International Fact-Finding Mission on Venezuela
Decree number of the 5 August 2016 mercury ban
International bodies
OHCHR

Cites Decree No. 2,412 of 5 August 2016.

UN Human Rights Office (OHCHR)
International bodies
UN Fact-Finding Mission

Cites Presidential Decree No. 1412, Official Gazette No. 40,960, of 5 August 2016.

UN Independent International Fact-Finding Mission on Venezuela
Homicide rate in Bolívar, 2019
Government and regulators
Government of Venezuela

36 per 100,000 in Bolívar; 94 in El Callao.

UN Human Rights Office (OHCHR)
Communities and civil society
Observatorio Venezolano de Violencia

84 per 100,000 in Bolívar; 368 in El Callao.

UN Human Rights Office (OHCHR)
Consultation of Indigenous peoples
Government and regulators
Government of Venezuela

About 90 consultation meetings reported.

UN Human Rights Office (OHCHR)
Communities and civil society
Most Indigenous peoples and experts

Reported no consultation meeting national or international standards, and none before the April 2020 rivers resolution; Mapoyo representatives were satisfied.

UN Human Rights Office (OHCHR)
Effect of the Arc on mining outside authorisation and on the environment
Government and regulators
Decree 2.248 (as summarised by OHCHR)

Stated objectives include mining regulated under principles of sustainability and respect for Indigenous peoples.

UN Human Rights Office (OHCHR)
Government and regulators
Government of Venezuela (via Prensa Minera, 27 November 2018)

Cyanidation plants described as a more efficient and less polluting alternative to mercury.

UN Independent International Fact-Finding Mission on Venezuela
International bodies
UN Fact-Finding Mission

The Arc resulted in "an expansion of illegal mining" within and beyond the formal perimeters; chemical mercury was widely used despite the ban.

UN Independent International Fact-Finding Mission on Venezuela
Foreign investment in the Arc
Government and regulators
President Nicolás Maduro

Announced agreements with foreign companies estimated at US$5.5 billion (August 2016).

UN Independent International Fact-Finding Mission on Venezuela
International bodies
UN Fact-Finding Mission

Only a limited number of contracts eventually materialised.

UN Independent International Fact-Finding Mission on Venezuela

How it looked

What was shown, beside what was recorded.

Shown

Recorded

  • Primary forest loss in the Venezuelan Amazon was over 140,000 hectares in the four years to 2020; protected areas (43% of the region) accounted for about 30% of it, and most hotspots lay within the Arc.
  • In 2017–2020 river-based mining in the Arc caused a loss of more than 1,800 hectares; Caura, Canaima and Yapacana national parks lost more than 22,000 hectares combined from all causes.
  • In the Caura River baseline study (sampling in 2011), 92% of 152 hair samples from women in five Ye'kwana and Sanema communities exceeded the WHO (1990) reference of 2 mg/kg; the maximum was 45.41 mg/kg, and contamination was found more than 200 km from mine discharge points.
  • In El Callao (IPEN, June 2021), 13 of 35 women sampled (37.1%) had hair mercury above 1 ppm; the highest was 5.5 ppm.
  • Seven cyanidation plants were operative, 13% of the 54 originally planned.
  • The BCV reported acquiring 9.2 tons of gold in 2018 in the domestic market without specifying the origin of the gold.
  • CAMIMPEG, 100% owned by the Ministry of Defence, recorded a net profit of 175,979,443.69 bolívares at the end of 2020; the UN Mission gave an approximate conversion of US$30.9 million.
  • Five budget-credit transfers for the Ecological Mining Development ministry, from current to capital spending, were published in Gazette 43.214 on 16 September 2025: Bs. 319.940,00; 1.152.169,00; 4.815.947,00; 11.138.101,92 and 3.882.512,08. No purpose was stated.
  • The 2026 mining law provides royalties of up to 13% on gross production, a mining tax of up to 6%, 30-year concessions extendable twice by up to 10 years, and 10 to 15 years' prison for mining in environmentally protected zones.
  • Operation "Manos de Metal" (June 2018) against gold trafficking: 426 bank accounts blocked, 29 properties seized, 22 individuals accused and 11 charged, two detained (Attorney General's Office, as reported to OHCHR).
  • RAISG concluded in 2018 that 82% of the "illegal mining" sites mapped in the Amazon were in Venezuela (as cited by the UN Fact-Finding Mission).
  • Mining Minister Víctor Cano said in July 2018 that the central bank had bought 17.6 tons of gold from small miners and that BCV reserves stood at 150 tons per BCV data (Reuters report republished by Hürriyet Daily News).
  • Decree 5.239 (Gazette 43.310) of 4 February 2026 reorganised the mining ministry as the "Ministerio del Poder Popular de Desarrollo Minero Ecológico e Industrias Básicas".
  • Transparencia Venezuela said in May 2026 that even deputies did not have the text of the national budget law.
  • The BCV page on domestic gold purchases displayed only average gold prices for 2017–2026 on 19 October 2026.

Who gained

Money that reached nature, beside money that stayed elsewhere.

Reached nature or the ground

Not published
Environmental budget or remediation fund for the Arc—
None on record.

Gained elsewhere

Not totalled
Foreign investment and operating agreements announced by President Maduro$5.5bn
Window: 2016
Only a limited number of contracts materialised, according to the UN Fact-Finding Mission.
Estimate of the country's gold reserves, Minister del Pino estimate$280bn
Window: 2016
Estimated value of the reserves in the area, President Chávez—
Window: 2011
US$12–13 billion.
Currency: USD · Window: Mixed — see each line. Figures cover different periods and are not compared as a ratio. * Estimate built from cited figures.

Responses on record

  • venezuela-gov (2020-06-02): Told OHCHR on 2 June 2020 that the homicide rate in Bolívar fell from 76 per 100,000 (2016) to 36 (2019), that a special Arc security brigade and a 2020 special security plan had been created, and that the Ministry for Indigenous Peoples held about 90 consultation meetings. · UN Human Rights Office (OHCHR)
  • venezuela-gov (2026-05): Minister Héctor Silva attributed the rise in gold production to operational efficiency and environmental sustainability. · Finanzas Digital (citing Últimas Noticias)
  • fanb (2023-02): Launched a reforestation campaign in Canaima and Yapacana with the Ecosocialism and Water ministries; no budget stated. · Swissinfo (EFE)

In court and with insurers

Every proceeding and every insurer decision on record.

Lawsuits and rulings

  1. 2016–Ongoing
    Nullity petition against Decree 2.248
    Supreme Court of Venezuela (TSJ) · Administrative · A citizens' platform → Decree 2.248 (Executive of Venezuela)

    The constitutional nullity petition was filed in 2016 and admitted; the UN Fact-Finding Mission wrote that it remained unanswered as of September 2022. The National Assembly's resolutions annulling the decree (June 2016) and Resolution 0010 on rivers (Gazette 6.526, 8 April 2020) were disregarded by the executive. UN Independent International Fact-Finding Mission on Venezuela

  2. 2016Outcome not on record
    Rusoro Mining Ltd. v. Venezuela (award linked to the earlier gold nationalisation)
    ICSID (Additional Facility) · Arbitration · Rusoro Mining Ltd. → Venezuela

    ICSID Case No. ARB(AF)/12/5, award of 22 August 2016, cited by the UN Fact-Finding Mission as an example of compensation payments after the nationalisation; the amount is not stated there. UN Independent International Fact-Finding Mission on Venezuela

  3. 2018–Ongoing
    Operation "Manos de Metal" against gold trafficking
    Attorney General's Office of Venezuela · Criminal · Attorney General's Office → 22 individuals accused, 11 of them charged (names not given)

    In June 2018: 426 bank accounts blocked, 29 properties seized, 22 individuals accused and 11 charged, two detained, as reported to OHCHR. No outcome is given. UN Human Rights Office (OHCHR)

Insurers

No insurer decision on record.

What nature saw

Outcomes measured on the ground, and nature's note.

Nature's report opens this page. Below: further outcomes measured on the ground.

Primary forest lost
over 140,000 ha
Venezuelan Amazon, four years to 2020; most hotspots in the Arc (MAAP)
Hair mercury, Caura River
92% above 2 mg/kg
152 women, five Ye'kwana and Sanema communities, 2011 sampling
Rivers opened to dredging
6
Resolution 0010, April 2020
Environmental budget
None on record
National budget law not published since 2017, per Transparencia Venezuela and Acceso a la Justicia

What we don't know

Undisclosed, unproven, untried: recorded as data.

Nature

  • Disputed Effect of the Arc on mining outside authorisation and on the environment

Money

  • None on record Environmental budget or remediation fund for the Arc — None on record.
  • None on record Estimated value of the reserves in the area, President Chávez — US$12–13 billion.

Court

  • Unclear Rusoro Mining Ltd. v. Venezuela (award linked to the earlier gold nationalisation): outcome not on record.

Accounts

  • Disputed Surface area of the Orinoco Mining Arc
  • Disputed Decree number of the 5 August 2016 mercury ban
  • Disputed Homicide rate in Bolívar, 2019
  • Disputed Consultation of Indigenous peoples
  • Disputed Foreign investment in the Arc

Record

  • None on record None on record: a budget allocation, environmental impact study or remediation fund for environmental harm in the Arc. Transparencia Venezuela and Acceso a la Justicia state that the national budget law has not been published since 2017; in May 2026 Transparencia Venezuela said even deputies did not have its text.
  • Not disclosed Not disclosed: environmental and sociocultural impact studies, the number and names of partner companies, and the number of registered miners (OHCHR, 2020).
  • Not disclosed Not disclosed: BCV data on gold received from Minerven, exports, destinations and foreign currency received (OHCHR, 2020). The BCV page on domestic gold purchases displayed only average gold prices for 2017–2026 on 19 October 2026.
  • Not disclosed Not disclosed: BCV gold reserve data after 2019 (UN Fact-Finding Mission, 2022).
  • Not measured Not measured: the number of people mining in the Arc (OHCHR: no official information). Without official monitoring, the scope of unauthorised mining is impossible to ascertain (UN Fact-Finding Mission).
  • Insufficient Insufficient: the share of Arc gold from unregulated mines. GIATOC and Transparencia Internacional put it at a minimum of 70% in a conservative estimate; the UN Mission said it had no means to determine the accuracy.
  • Not disclosed Not disclosed: the budget of the February 2023 FANB reforestation campaign in Canaima and Yapacana, where 400 rubber and cashew plants and 1,000 seeds were reported for Yapacana (EFE).
  • Not disclosed Not disclosed: area, target or budget of the reforestation plans that sector representatives ratified in May 2026.
  • Unclear Unclear: Venezuela had signed but not ratified the Minamata Convention on Mercury as of the UN Mission's 2022 findings.
  • Insufficient Insufficient: Acceso a la Justicia's summary of Decree 5.239 (4 February 2026) lists no environmental protection or monitoring duties for the reorganised ministry; "Ecológico" appears only in its name.
  • Disputed Disputed: the government's homicide, consultation and revenue accounts differ from those of independent observers (see disputes).

Did the harm stop?

No end of harm is recorded. The UN Fact-Finding Mission reported in 2022 an expansion of "illegal mining" within and beyond the formal perimeters; Resolution 0010 of April 2020 opened six rivers to dredge mining.

Who paid?

None on record: no budget or fund for environmental remediation. Downstream Indigenous communities carry the mercury exposure documented by OHCHR and the 2012 Caura study.

Sources

Voices on record: — Company or project✓ Government and regulators— Courts✓ Press and investigations✓ Communities and civil society✓ Researchers✓ International bodies

Government and regulators

  1. Executive Order 13850
    Federal Register (GovInfo) · 2018-11-01

Connected cases

Related matters, and cases linked to this one through the same organisations, with the role each played in both.

Science and environment

Hectare (ha)
A unit of area equal to 10,000 square metres, about 2.5 acres. 100 hectares make one square kilometre.

Carbon and conservation finance

Baseline
The projected scenario of what would have happened without a project, such as an expected rate of deforestation. Credits are issued for the difference between the baseline and what actually happened, so an inflated baseline produces more credits.

Law and courts

Arbitration
A private dispute process in which an appointed arbitrator, instead of a court, decides the case.
Homicide charge
A criminal charge of unlawfully causing death. In Brazil, prosecutors may charge it where they argue a defendant accepted the risk of deaths.
Trustees (natural resource)
Government agencies that act on behalf of the public to recover and spend damages for harm to natural resources.