← Peru mining record · All Peru sanctions

MINERA COLQUISIRI S.A.

Peru mining record: safety sanctions, environmental fines and fatal accidents

RUC (tax ID) 20107290177· On record from Jun 4, 2010 to Jul 18, 2026

Appears in the source as: MINERA COLQUISIRI S.A

sanction resolutions

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A resolution (resolución) is OSINERGMIN's formal written decision closing one sanction case: an order from the regulator, not a court judgment. A single resolution can fine several infractions at once, and it can be appealed to TASTEM, the agency's own appeals tribunal.

32,263

in fines (S/)

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S/ is the Peruvian sol, Peru's currency. The gray dollar figures are approximate conversions at S/ 3.35 per US$1 (August 2026).

published resolutions 2001-2019

OEFA environmental cases

98.03

in OEFA fines (UIT)

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The UIT (Unidad Impositiva Tributaria) is Peru's tax reference unit, revalued each year. OSINERGMIN states every fine in UIT as well as in soles.

deaths 2002-2021 (MINEM)

OSINERGMIN safety fines, 2020-2026, obtained by public-records request

From Jan 13, 2021 to Jul 18, 2026 · S/ 32,263 ≈$9,631

Resolution 2366-2026 S/ 23,540 ≈$7,027

Jul 18, 2026 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA

Case file: 202600084047

Sanctioned party as written: MINERA COLQUISIRI S.A.

Obligation (OSINERGMIN's label) ⓘ The legal obligation OSINERGMIN found breached, in the agency's own Spanish wording.	State (OSINERGMIN) ⓘ OSINERGMIN's own per-infraction state, kept verbatim in Spanish: FUNDADA (upheld), FUNDADA EN PARTE (upheld in part), INFUNDADA (dismissed), ARCHIVADA (closed), NULIDAD (annulled), EMITIDA (issued).	UIT ⓘ The UIT (Unidad Impositiva Tributaria) is Peru's tax reference unit, revalued each year. OSINERGMIN states every fine in UIT as well as in soles.	Fines (S/) ⓘ S/ is the Peruvian sol, Peru's currency. The gray dollar figures are approximate conversions at S/ 3.35 per US$1 (August 2026).	% paid ⓘ The share of the fine OSINERGMIN reports as paid for this infraction. Whether it reflects collection to date has not been confirmed with the agency.
2.5 Reportes sobre monitoreo geotécnico.	EMITIDA	4.28	23,540	100%

Resolution 2707-2023 S/ 6,435 ≈$1,921

Dec 6, 2023 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA

Case file: 202300147610

Sanctioned party as written: MINERA COLQUISIRI S.A.

Obligation (OSINERGMIN's label) ⓘ The legal obligation OSINERGMIN found breached, in the agency's own Spanish wording.	State (OSINERGMIN) ⓘ OSINERGMIN's own per-infraction state, kept verbatim in Spanish: FUNDADA (upheld), FUNDADA EN PARTE (upheld in part), INFUNDADA (dismissed), ARCHIVADA (closed), NULIDAD (annulled), EMITIDA (issued).	UIT ⓘ The UIT (Unidad Impositiva Tributaria) is Peru's tax reference unit, revalued each year. OSINERGMIN states every fine in UIT as well as in soles.	Fines (S/) ⓘ S/ is the Peruvian sol, Peru's currency. The gray dollar figures are approximate conversions at S/ 3.35 per US$1 (August 2026).	% paid ⓘ The share of the fine OSINERGMIN reports as paid for this infraction. Whether it reflects collection to date has not been confirmed with the agency.
2.1.11 Ventilacion	EMITIDA	1.3	6,435	100%

Resolution 78-2021 S/ 2,288 ≈$683

Jan 13, 2021 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA

Case file: 202000010641

Sanctioned party as written: MINERA COLQUISIRI S.A.

Obligation (OSINERGMIN's label) ⓘ The legal obligation OSINERGMIN found breached, in the agency's own Spanish wording.	State (OSINERGMIN) ⓘ OSINERGMIN's own per-infraction state, kept verbatim in Spanish: FUNDADA (upheld), FUNDADA EN PARTE (upheld in part), INFUNDADA (dismissed), ARCHIVADA (closed), NULIDAD (annulled), EMITIDA (issued).	UIT ⓘ The UIT (Unidad Impositiva Tributaria) is Peru's tax reference unit, revalued each year. OSINERGMIN states every fine in UIT as well as in soles.	Fines (S/) ⓘ S/ is the Peruvian sol, Peru's currency. The gray dollar figures are approximate conversions at S/ 3.35 per US$1 (August 2026).	% paid ⓘ The share of the fine OSINERGMIN reports as paid for this infraction. Whether it reflects collection to date has not been confirmed with the agency.
2.1.11 Ventilacion	EMITIDA	0.52	2,288	100%

OSINERGMIN published sanctions, 2001-2019

Year	Resolution ⓘ A resolution (resolución) is OSINERGMIN's formal written decision closing one sanction case: an order from the regulator, not a court judgment. A single resolution can fine several infractions at once, and it can be appealed to TASTEM, the agency's own appeals tribunal.	Sanctioned party as written	Type	TASTEM ruling
Mar 20, 2019	716-2019-OS-GSM	MINERA COLQUISIRI S.A.
Jul 12, 2018	1720 -2018-OS-GSM hidden on the agency's page	MINERA COLQUISIRI S.A.
Nov 14, 2017	1990-2017-OS-GSM	MINERA COLQUISIRI S.A.
Oct 19, 2017	1763-2017-OS-GSM	MINERA COLQUISIRI S.A.
Oct 17, 2016	2920-2016-OS-GSM	MINERA COLQUISIRI S.A.		014-2018-OS-TASTEM-S2
Sep 26, 2016	2733-2016-OS-GSM	MINERA COLQUISIRI S.A.
Jun 22, 2016	1891-2016-OS-GSM	MINERA COLQUISIRI S.A.
May 3, 2016	1304-2016-OS-GSM	MINERA COLQUISIRI S.A.		225-2016-OS-TASTEM-S2
Apr 12, 2016	1050-2016-OS-GSM	MINERA COLQUISIRI S.A.
Dec 3, 2015	Resolution (PDF) hidden on the agency's page	MINERA COLQUISIRI S.A.
Jun 4, 2010	Resolution (PDF)	MINERA COLQUISIRI S.A	MEDIO AMBIENTE

The regulator's own list, frozen in December 2019. It publishes no fine amount: the resolution PDF is the record. A row naming a titleholder and a contractor together is shown as written.

OEFA environmental sanctions, 2017-2023

2479-2021-OEFA/DFAI 64.99 UIT

Oct 27, 2021 · Unit: María Teresa · Lima

Case: 0209-2020-OEFA/DFAI/PAS

Appeal: APELACIÓN, resolved by 0283-2022-OEFA/TFA-SE on Jul 5, 2022

Infraction (OEFA's classification)	Fine (UIT) ⓘ The UIT (Unidad Impositiva Tributaria) is Peru's tax reference unit, revalued each year. OSINERGMIN states every fine in UIT as well as in soles.
Compromisos y/o normas ambientales simples El administrado incumplió lo establecido en el MEIAD María Teresa 2018, toda vez que no colocó una malla raschel en la superficie del muro de contención del depósito de relaves Nº 3	63.28
Compromisos y/o normas ambientales simples El administrado incumplió lo establecido en el Primer ITS María Teresa, toda vez que almacenó el concentrado de plomo fuera de la losa de secado de plomo techada	1.71
Compromisos y/o normas ambientales simples El administrado no realizó el almacenamiento de concentrado de cobre, plomo y zinc, proveniente de la planta concentradora, en instalaciones apropiadas con confinamiento y/o con cubierta permanente en la unidad fiscalizable María Teresa.

0125-2020-OEFA/DFAI 27.95 UIT

Jan 31, 2020 · Unit: María Teresa · Lima

Case: 2706-2018-OEFA/DFAI/PAS

Appeal: APELACIÓN, resolved by 0337-2020-OEFA/TFA-SE on Dec 30, 2020

Infraction (OEFA's classification)

Fine (UIT)

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The UIT (Unidad Impositiva Tributaria) is Peru's tax reference unit, revalued each year. OSINERGMIN states every fine in UIT as well as in soles.

Actividades, componentes y/o equipos no declarados

El titular minero habría implementado doce (12) bocaminas, siete (07) chimeneas, un (01) botadero provisional de desmonte, una (01) planta chancadora, un (01) comedor y un (01) biodigestor, que no se encontraban contemplados en sus instrumentos de gestión ambiental * Se archiva en el extremo i) Bocamina Rampa Sofia A; ii) Bocamina Rampa 400; iii) Bocamina Chavín de Huántar; iv) Bocamina Nivel 175; v) Bocamina Bubulina; vi) Bocamina Rampa 170 W; vii) Bocamina Nivel 185W; viii) Chimenea Nivel 175; ix) Chimenea de ventilación RB-01; x) Chimenea de ventilación 185; xi) Botadero Provisional Cerro La Mina 2; xii) Chimenea de ventilación RB-02; xiii) Comedor zona La Mina 2; xiv) Chimenea de ventilación RB-03; y, xv) Chimenea de ventilación RB-04 RD de reconsideración archiva en el extremo referido a i) Bocamina Rampa 170-83W; ii) Bocamina S/N 2; iii) Bocamina S/N 3 (bocamina rampa inferior); iv) Bocamina S/N 4 (bocamina rampa superior); v) Chimenea Rampa 400; y, vi) Biodigestor zona La Mina 2

corrective measure ordered

27.95

2262-2019-OEFA/DFAI 5.09 UIT

Dec 31, 2019 · Unit: María Teresa · Lima

Case: 2943-2018-OEFA/DFAI/PAS

Infraction (OEFA's classification)	Fine (UIT) ⓘ The UIT (Unidad Impositiva Tributaria) is Peru's tax reference unit, revalued each year. OSINERGMIN states every fine in UIT as well as in soles.
Compromisos y/o normas ambientales simples El titular minero no colocó la manta impermeable en la superficie del muro de contención (aguas abajo) del depósito de relave N° 3, incumpliendo su instrumento de gestión ambiental	5.09

3117-2018-OEFA/DFAI

Dec 11, 2018 · Unit: María Teresa · Lima

Case: 1336-2018-OEFA/DFAI/PAS

Appeal: APELACIÓN, resolved by 0221-2019-OEFA/TFA-SMEPIM on Apr 30, 2019

Infraction (OEFA's classification)	Fine (UIT) ⓘ The UIT (Unidad Impositiva Tributaria) is Peru's tax reference unit, revalued each year. OSINERGMIN states every fine in UIT as well as in soles.
Actividades, componentes y/o equipos no declarados El titular minero implementó una planta de tratamiento de agua residual doméstica no contemplada en su instrumento de gestión ambiental. corrective measure ordered

1333-2017-OEFA/DFSAI

Nov 14, 2017 · Unit: María Teresa · Lima

Case: 1796-2016-OEFA/DFSAI/PAS

Infraction (OEFA's classification)	Fine (UIT) ⓘ The UIT (Unidad Impositiva Tributaria) is Peru's tax reference unit, revalued each year. OSINERGMIN states every fine in UIT as well as in soles.
Compromisos y/o normas ambientales simples El titular minero no habría colocado la tubería de conducción de relave sobre caballetes de madera, según lo establecido en su instrumento de gestión ambiental corrective measure ordered

From OEFA's environmental infractions register (RUIAS), mining subsector, snapshot cut April 30, 2024. Fines are in UIT, Peru's yearly-revalued tax unit, as OEFA states them; a case can carry several infraction lines and a corrective measure instead of a fine.

Fatal accidents, 2002-2021 (MINEM)

Date of death	Mining unit	Accident type (as classified)	Place	Category
Mar 22, 2012	MARIA TERESA	DESPRENDIMIENTO DE ROCAS	HUARAL, HUARAL, LIMA	Gran y Mediana Minería

One row per death from the Ministry of Energy and Mines' open-data list, naming the titleholder and mining unit. The file has no 2019 rows and only 10 for 2017-2018, an upstream gap; deaths after June 2021 are not in it.