Mining Incidents

← Peru mining record · All Peru sanctions

SIERRA ANTAPITE S.A.C.

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

RUC (tax ID) 20601434335· On record from Aug 15, 2018 to Dec 5, 2025

4
sanction resolutions
ⓘ 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.
1,157,701
in 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).
0
published resolutions 2001-2019
2
OEFA environmental cases
40.54
in OEFA fines (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.
0
deaths 2002-2021 (MINEM)
OSINERGMIN safety fines, 2020-2026, obtained by public-records request

From Aug 12, 2021 to Dec 5, 2025 · S/ 1,157,701 ≈$346K

Resolution 4581-2025 S/ 4,290 ≈$1,281
Dec 5, 2025 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA
Case file: 202500139140
Sanctioned party as written: SIERRA ANTAPITE S.A.C.
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 Ventilación. EMITIDA 0.78 4,290 100%
Resolution 2791-2024 S/ 17,215 ≈$5,139
Aug 18, 2024 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA
Case file: 202400000993
Sanctioned party as written: SIERRA ANTAPITE S.A.C.
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.
2.2.3 Ventilación. EMITIDA 1.07 5,885 0%
2.2.3 Ventilación. EMITIDA 2.06 11,330 0%
Resolution 643-2024 S/ 1,104,180 ≈$330K
Feb 26, 2024 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA
Case file: 202300252261
Sanctioned party as written: SIERRA ANTAPITE S.A.C.
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.
1.2 Autorizacion de funcionamiento FUNDADA 200.76 1,104,180 0%
Resolution 2582-2021 S/ 32,016 ≈$9,557
Aug 12, 2021 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA
Case file: 202000060639
Sanctioned party as written: SIERRA ANTAPITE S.A.C.
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 3.48 16,008 100%
2.1.11 Ventilacion EMITIDA 2.03 9,338 100%
2.1.11 Ventilacion EMITIDA 1.45 6,670 100%
OSINERGMIN published sanctions, 2001-2019

Not on OSINERGMIN's published 2001-2019 sanctions list.

OEFA environmental sanctions, 2017-2023
1969-2021-OEFA/DFAI 40.54 UIT
Aug 9, 2021 · Unit: Antapite · Huancavelica
Case: 0075-2020-OEFA/DFAI/PAS
Appeal: APELACIÓN, resolved by 0026-2022-OEFA/TFA-SE on Jan 20, 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.
Actividades, componentes y/o equipos no declarados
El administrado incumplió lo establecido en su instrumento de gestión ambiental, debido a que realizó la reapertura de las bocaminas nivel 3360, 3347 y 34705
corrective measure ordered
40.54
1855-2018-OEFA/DFAI
Aug 15, 2018 · Unit: Antapite · Huancavelica
Case: 0794-2018-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.
Adopción de medidas de previsión y control ambiental
El titular minero no ejecutó las medidas de mantenimiento del depósito de desmonte del nivel 3525, conforme a los instrumentos de gestión ambiental.
corrective measure ordered
Compromisos y/o normas ambientales simples
El titular minero no implementó los canales de derivación de agua de drenaje y subdrenaje en los depósitos de desmonte de los niveles 3240 y 3285, así como tampoco el canal de coronación en el depósito de desmonte nivel 3285, conforme se establece en los instrumentos 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)

No death attributed to this company in MINEM's 2002-2021 list.