Jslink

JS Link (제이에스링크), formerly DNA Link, is a South Korean company founded on March 15, 2000 that operates two divisions: a genome-based biotechnology business and a rare earth permanent magnet manufacturing business. Its bio division is based in Gangseo-gu, Seoul, the magnet division in Jung-gu, Seoul, and its magnet plant in Yesan-gun, Chungcheongnam-do.

The biotechnology division provides high-throughput genomic analysis services, including next-generation sequencing (whole genome, de novo, whole exome/targeted, transcriptome, epigenome and single-cell sequencing), microarray-based analysis (GWAS, RNA, aCGH, CNV), genotyping platforms (Fluidigm BioMark, TaqMan and SNaPshot assays), digital ELISA (SIMOA), proteomics (Olink, SomaLogic), spatial analysis (GeoMx), identification services (AccuID) and personal genomics (DNAGPS). The company states it has analyzed human, plant and animal samples, developed bioinformatics workflows, built genetic information databases for population characterization, and worked with research institutes in Korea and abroad on personalized medicine projects.

The magnet division manufactures high-performance sintered neodymium-iron-boron (NdFeB) and samarium-cobalt (SmCo) permanent magnets for automotive, aerospace, power generation, transmission and distribution, and industrial equipment markets. JS Link describes a fully integrated process spanning rare earth oxide refining, alloy production, milling, magnetic alignment, pressing, sintering, machining, grain boundary diffusion of dysprosium and terbium for high-coercivity grades such as 45UH and above, coating and magnetization, with in-house testing of strength, durability and heat resistance.

Founding story

JS Link was founded on March 15, 2000 as a genome-based biotechnology research and development company, formerly named DNA Link.

Business model

JS Link sells genomic analysis and sequencing services to research and clinical customers through its biotechnology division, and manufactures and sells sintered rare earth permanent magnets through its magnet division, sourcing rare earth materials from partners internationally.

Traction

The Yesan permanent magnet plant has an annual capacity of 1,000 tons. In 2025 the company announced a planned $223 million rare earth magnet facility in Columbus, Georgia expected to create more than 500 jobs, and in 2026 announced a partnership with Lynas and a non-binding strategic letter of intent with REalloys for a North American rare earth magnet platform.

Latest developments

Announcements posted by the company include a $223 million JS Link America investment in a Georgia rare earth magnet plant and related Georgia state and Columbus city announcements (September 2025), a visit by Columbus Mayor Skip Henderson and the Choose Columbus team to the Yesan plant on October 29, 2025, a partnership signed with Lynas (July 2026), and a non-binding strategic letter of intent with REalloys to develop a fully integrated North American rare earth magnet platform (July 2026).