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Korea signals,
read at source.

Selected market briefs from Nathan Research Group's Seoul desk, built from local filings, primary-source interviews, and operator context.

Medical Aesthetics
Medical Aesthetics
Seoul Desk Brief

The blade, not the razor.

CLASSYS sells skin-tightening devices to clinics at razor-thin economics, then earns for years on the single-use cartridges every treatment burns. Revenue tripled in five years while operating margin never left 50% — the exact trick the Western rivals who sold 'just the machine' couldn't manage. Two of them went bankrupt proving it.

Jun 8, 2026 / 8 min read

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Agribusiness
Agribusiness

Everything but the price.

Harim owns every link — the feed mills, four hatcheries, six hundred farms, the most automated slaughterhouse in Asia. Across fifty-four quarters its average operating margin is 0.6%, the lowest of Korea's top-500 food companies. A story about why owning the whole chain is not the same as owning the part that sets the price — and the ₩412 billion the wider group is spending to escape it.

Jun 8, 2026 / 9 min read

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Semiconductors
Semiconductors

The Rubin reset.

SK Hynix booked ₩52.6T in Q1 2026 at a 72% operating margin. Samsung's first HBM4 shipments to NVIDIA's Vera Rubin landed in February. TrendForce now models Rubin at 22% of NVIDIA's 2026 mix, down from 29%. The Korean duopoly is intact — but the swing variable for the rest of 2026 is no longer share, it is qualified yield into a delayed flagship.

May 8, 2026 / 9 min read

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Bio & Pharma
Bio & Pharma

Korea's GLP-1 lane opens.

Celltrion booked ₩1.15 trillion in Q1 2026 at a 28% operating margin — its best quarter on record. Samsung Biologics ran its first commercial-scale ADC engineering batch at Songdo. A new three-party joint venture put long-acting GLP-1 obesity drugs squarely on the Korean roadmap. The catch-up framing is officially obsolete.

May 7, 2026 / 8 min read

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