The company has reduced its share count over this period, returning value to shareholders through buybacks.
Diluted shares outstanding: 1.10B (2022) → 290.6M (2026)
Sumitomo Metal Mining Co., Ltd. (SMM), established in Tokyo, Japan, in 1590, stands as a global leader in the mining, smelting, and refining of non-ferrous metals. Operating internationally and domestically within Japan, the company—which adopted its current name in June 1952, having previously been known as Seika Kogyo (Mining) Co., Ltd.—structures its extensive operations across three principal divisions: Mineral Resources, Smelting & Refining, and Materials. SMM's core business involves producing a variety of metallic products, including copper, nickel/cobalt, gold/precious metals, and other mineral deposits. The company is also an innovator in advanced materials, offering battery components such as nickel hydroxides and lithium nickel-cobalt-aluminum oxides. Its crystal materials segment is responsible for products like lithium tantalates/niobates, optical isolators, and faraday rotators. The Materials division further develops a wide array of powder products, encompassing thick film pastes, nickel and fine copper powders, nickel oxides, near-infrared shielding and deep-tinting compounds, sputtering targets/tablets, electromagnetic sheets and coils, rare earth magnetic materials, and lubricants. Additionally, SMM manufactures package materials, including copper-clad polyimide films and printed wiring boards, alongside diverse catalysts for automotive, chemical, hydro processing (including rejuvenation and regeneration services), and petrochemical applications. Its product portfolio is rounded out by construction materials, terminals, connectors, and lens barrels. Beyond its robust manufacturing base, SMM provides a range of specialized services. These include water and precious metal recycling, environmental engineering and water treatment solutions, sterilization and material property modification through irradiation, and domestic marine transportation. The company also holds interests in real estate and offers expert technical engineering capabilities.
When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.
+42.3% YoY
YoY Growth Rate
Revenue accelerating
+225.7% YoY
YoY Growth Rate
EPS growth accelerating
¥9.1B/ year
↓ Declining (-13% vs prior year)
0.5% of revenue
R&D spend declining — could signal cost-cutting or efficiency
Cash flow positive
¥1.6T cash & investments
Quarterly Free Cash Flow
↓ Burn rate worsening
Company generates more cash than it spends — no dilution risk from fundraising
Sumitomo Metal Mining Co. grew revenue 42% year-over-year and the growth rate is speeding up. That's the kind of momentum growth investors look for — the question is whether margins can follow.
The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.
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ROIC between 5% and 15%. They earn 5 to 15 cents back per year on every dollar invested.
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Earnings growing 25%+ a year. The compounder zone.
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FCF margin between 0% and 10%. Some cash from sales, but not a lot.
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Interest coverage above 8. Profits cover interest many times over.
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P/E in the normal range. Price is roughly $15 for every $1 of yearly profit.
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Standard yield zone for stable dividend payers. A meaningful piece of total return.
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