← Peru mining record · All Peru sanctions
SIERRA POLI S.A.C.
Peru mining record: safety sanctions, environmental fines and fatal accidents
On record from Nov 29, 2021 to Jun 9, 2025
6
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.311,187
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
0
OEFA environmental cases
0.00
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 Nov 29, 2021 to Jun 9, 2025 · S/ 311,187 ≈$93K
Resolution 2304-2025
S/ 46,750 ≈$14K
Jun 9, 2025 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA
Case file: 202400260267
Sanctioned party as written: SIERRA POLI 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. |
|---|---|---|---|---|
| 9.3 Disposición y estabilidad física. | INFUNDADA | 8.5 | 46,750 | 0% |
Resolution 4239-2024
S/ 5,992 ≈$1,789
Dec 13, 2024 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA
Case file: 202400126078
Sanctioned party as written: SIERRA POLI 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. | INFUNDADA | 1.12 | 5,992 | 100% |
Resolution 1591-2024
S/ 34,375 ≈$10K
May 15, 2024 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA
Case file: 202300273751
Sanctioned party as written: SIERRA POLI 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. |
|---|---|---|---|---|
| 9.3 Disposicion y manejo de residuos mineros | INFUNDADA | 6.25 | 34,375 | 0% |
Resolution 1047-2023
S/ 86,570 ≈$26K
May 5, 2023 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA
Case file: 202100165595
Sanctioned party as written: SIERRA POLI 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 | EMITIDA | 15.74 | 86,570 | 0% |
Resolution 1143-2022
S/ 116,930 ≈$35K
May 6, 2022 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA
Case file: 202000059286
Sanctioned party as written: SIERRA POLI 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. |
|---|---|---|---|---|
| 6.1.2 Obligaciones del supervisor | FUNDADA EN PARTE | 8.86 | 48,730 | 0% |
| 6.1.2 Obligaciones del supervisor | FUNDADA EN PARTE | 12.4 | 68,200 | 0% |
Resolution 3742-2021
S/ 20,570 ≈$6,140
Nov 29, 2021 · DIVISIÓN DE SUPERVISIÓN DE MEDIANA MINERÍA
Case file: 202100041524
Sanctioned party as written: SIERRA POLI 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. |
|---|---|---|---|---|
| 2.1.1 Estudios y planos | INFUNDADA | 3.74 | 20,570 | 0% |
OSINERGMIN published sanctions, 2001-2019
Not on OSINERGMIN's published 2001-2019 sanctions list.
OEFA environmental sanctions, 2017-2023
No OEFA environmental sanction against this company in the 2017-2023 register.
Fatal accidents, 2002-2021 (MINEM)
No death attributed to this company in MINEM's 2002-2021 list.