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Touyun Biotech Group Ltd. is an investment holding company, which engages in the design, development, production, and sales of packaging products. It operates through the following segments: Packaging Products Business, Treasury Investment Business, and Chlamydomonas Reinhardtii Products Business. The Packaging Products Business segment focuses on the manufacture and sale of watch boxes, jewellery boxes, eyewear cases, bags and pouches, and display units. The Treasury Investment Business segment is involved in investments and trading in securities, and money lending. The Chlamydomonas Reinhardtii Products Business refers to the production and sale of Chlamydomonas reinhardtii, micro-algae, and related products. The company was founded by How Mun Lam in 1989 and is headquartered in Hong Kong.