Compania Minera Santa Luisa S.A.

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What it is

Compañía Minera Santa Luisa mines, processes, and sells metal concentrates — specifically zinc, lead, and copper — from two underground operations in Peru. It owns mining rights in the Huanzalá and Pallca mines, both in the Ancash region of the central Andes.

The company started production in June 1968, processing roughly 500 tonnes of ore per day; its concentrator plant now handles up to 1,600 tonnes per day. By the scale of global mining it is mid-sized, but within Peru’s mid-tier it is a steady, low-debt operator.

Concentrates are sold to buyers including MS Zinc Co. Ltd., Votorantim Metais-Cajamarquilla, and Consorcio Minero S.A. (Cormin).

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Who owns it

Compañía Minera Santa Luisa operates as a subsidiary of Mitsui Mining & Smelting Co., Ltd., the Tokyo-listed nonferrous metals group known in Japan as Mitsui Kinzoku. Mitsui owns a 70% stake in Compañía Minera Santa Luisa, making it the controlling shareholder and operator of the two mines.

In Peru, Mitsui Kinzoku currently has the Huanzalá Mine and the Pallca Mine in operation, run by Compañía Minera Santa Luisa as a Mitsui Kinzoku Group company. The remaining roughly 30% of shares trade publicly on the Lima bourse; no secondary institutional bloc is disclosed in available sources.

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Who runs it

The board is composed of six non-independent directors, all affiliated with the Japanese parent. Director Shuji Kimura was the most recent addition to the board, joining in 2025.

In a shareholders’ meeting held on 28 March 2025, the board clarified the term dates of director Osamu Saito, who also serves as a non-independent director.

The names of the chief executive (Gerente General) and chief financial officer are not disclosed in available sources; the company’s governance filings seen via the SMV regulator identify board members but not named management by title in publicly accessible summaries.

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The money, in plain words

In the full year 2025, the company brought in PEN 504m (USD 147.5m) in sales — up 7.8% on 2024 — and kept PEN 93m (USD 27.2m) as profit after all costs. That means it held about 18.5 cents of profit from every sol of sales — a net profit margin of 18.5% (our calculation), solid for a metals concentrate producer.

The margin fell from 22% in 2024 to 18% in 2025, driven by higher operating expenses rather than a drop in sales. On equity of PEN 388m (US$114 mn) (latest reported), a PEN 93m (US$27 mn) profit implies a return on equity of roughly 24% (our calculation) — meaning owners earned about 24 cents on every sol they have invested in the business.

The most recent quarterly filing showed PEN 295m (US$86 mn) in cash and equivalents against total liabilities of PEN 132m (US$39 mn), leaving net cash of PEN 163m (USD 47.6m, our calculation) — this business carries more cash than debt. At a price-to-earnings ratio of roughly 4.7× (our calculation), the shares trade at a steep discount to most global peers; the dividend yield stands at around 12.2%.

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What it is doing now

The company is focused on optimising production efficiency and environmental footprint in the mine area, following approval of an Environmental Impact Assessment (EIA) modification in February 2024 that extended the operational life of the mines. That permit was the most significant regulatory event in recent years, giving the Huanzalá-Pallca complex a longer horizon.

In the third quarter of 2025, revenue fell to PEN 95.8m (US$28 mn) — down 39% from the same quarter of 2024 — reflecting lower metal sales volumes. The company held a regular Annual General Meeting in March 2026 as part of its standard governance calendar.

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What to watch

• Zinc and lead prices. Santa Luisa’s revenue moves almost in lockstep with global base-metal prices; a sustained zinc rally would lift margins sharply, while a down-cycle punishes fast.
• Governance concentration. Following a recent director departure, there are no independent directors on the board — a structural risk that limits minority-shareholder oversight.
• Mine life and capital reinvestment. The 2024 EIA extension is a positive signal, but the Huanzalá mine has operated since 1968; investors should track any further capital commitments or exploration news from the Japanese parent.
• Dividend sustainability. The company has an unstable dividend history, with payouts falling more than 20% in some years — the high current yield may not persist.

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This is news, not investment advice.