Hochschild Mining sustainability score: 25/100
Below expectations starts at 31. The highest score on SINK is 71.
Hochschild Mining is a London-listed precious metals miner with silver and gold mines in Peru, Argentina and Brazil, including Inmaculada in Peru and Mara Rosa in Brazil. It reported US$1,182.1 million of revenue for 2025, with about 3,240 employees.
Founded 2006Head office London, United KingdomStaff ~3,242 (2025)Revenue US$1,182.1M revenue (FY2025; US$1,182,148 thousand total after a US$26,427 thousand exceptional hedge item; US$1,208,575 thousand before exceptional items)Website ↗
Hochschild's emissions are rising: Scope 1 and 2 rose 15.7% in 2025, which it attributes mainly to its new Mara Rosa mine, and its Scope 3 reporting is partial by its own account. Peru's environmental regulator found its Inmaculada operator had discharged untreated water to soil and dumped waste rock into ravines, and fined it. Its water and biodiversity work is at an early stage, with a TNFD assessment due to start in 2026.
Hochschild Mining scores 25/100 (Significant gaps) on SINK's independent climate assessment, scored from public data only. Scores are free. Nobody can pay to change a score, speed it up or hide it. Last verified November 2026.
That places Hochschild Mining joint 901st of 1,055 companies scored, and 7th of 14 in Mining & Extraction.
What is Hochschild Mining doing well, and where does it fall short?
Strongest on Carbon Footprint: Operations and Transparency & Accountability (7/10, 7/10). Weakest on Emissions Trajectory and Carbon Footprint: Supply Chain (0/10, 3/10).
Where Hochschild Mining lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
What would raise this score
- Whether its emissions are fallingShow its emissions are falling.
- Emissions from its supply chainAssess where its supply-chain emissions come from.
- Its effect on natureMeasure its effect on nature and have it independently verified.
Every question that lost points
- Emissions from its own operations7/10Its own emissions aren't independently verified or tracked over several years.
- Emissions from its supply chain3/10No assessment of where its supply-chain emissions come from.
- Whether its emissions are falling0/10No evidence its emissions are falling.
- How clean its energy is5/10Less than half its energy shown to be renewable, or no transition plan.
- Its effect on nature4/10Its effect on nature isn't measured or independently verified.
- How it uses materials and handles waste4/10No measurable waste or recycling targets reported publicly.
- Its effect on water4/10No measured water footprint with reduction targets.
- Its climate targets4/10Its targets aren't science-based or committed to the Science Based Targets initiative.
- How openly it reports7/10No annual impact report, or no pay linked to climate targets.
- Its record on controversies6/10Points deducted for controversies or its business model. The finding is under question 10.
A score changes when the evidence does. We use new published evidence at the next rescore. Anyone can send us new evidence, free. How to send it.
How is Hochschild Mining's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Hochschild Mining's score based on?
9 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
33% of them were published by Hochschild Mining itself; the rest come from independent sources.
“Scope 1 & 2 emissions 101,683 87,910”
“Alcance 1: Emisiones y remociones directas de GEI 29,145.81”
“However, we recognise that we have further work to be done to provide a complete set of Scope 3”
“dispuso del material de desmonte proveniente de la bocamina Nv-3 y bocamina del”
“Aligned with ISO 14001:2015 and verified by DNV, the system is tailored to Hochschild's operations”
“repeating accusations that the mines polluted local water sources.”
“Inmaculada’s MEIA approved for an additional 20 years.”
“has been granted a key permit that allows it to build a processing plan and kick off mine pre-stripping at the Mara Rosa gold project”
“suspendió por seis semanas las operaciones de procesamiento en su mina de oro Mara Rosa en Brasil debido a las fuertes lluvias estacionales”
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How does Hochschild Mining compare with other mining & extraction companies?
Where Hochschild Mining sits among mining & extraction peers.
Among the 14 major mining & extraction brands we've scored, Hochschild Mining sits 7th of 14.
Who scores higher in Mining & Extraction?
The 3 companies in the sector scoring nearest above Hochschild Mining.
Teck operates major mining assets with detailed emissions reporting but intensity-based targets that mask rising absolute emissions.
See the breakdown →Endeavour Mining reports operational emissions reductions but has not achieved absolute group-wide declines.
See the breakdown →Newmont has comprehensive emissions reporting and SBTi-validated 2030 targets, but absolute emissions rose 17% post-acquisition and remain on an upward trajectory.
See the breakdown →Which companies moved this week, and why.
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