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Postmath provides mathematics teaching tools for high school and college educators.
Founded in 2021, Seoul-based Postmath develops Math Secretary, a platform for mathematics educators. Its tools include question databases, content creation, source analysis, video integration, mock test organization, and hit rate analysis. CEO Choi Jun-ho led the company as of April 2026. In April 2026, Postmath raised approximately KRW 1.8 billion in venture funding from East Gate Partners.
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