Yi Jinn Industrial Co., Ltd. engages in the research and development, production, and sale of polyester textured yarns worldwide. The company operates through three segments: Textile, Leasing, and General. It primarily offers polyester filament, polyester/nylon textured, spandex air covering, polyester textured color, and composite yarns, as well as man-made woven and knit fabrics. The company provides its products under the Seagull and GreenGuard brands for application in shirts, suits, sportswear, casual wear, women's suits, home textiles, leisure wear, bath towels, facecloths, stuffed toys, ladies garments'/spring and summer clothes, gentleman's clothes/pants, knitted and woven fabrics, socks, denim fabrics, yoga clothes, underwear's/lingerie's, jackets, and over coats, as well as for weaving, and warp or circular knitting. It is also engaged in real estate rental and trading, real estate development, and investing in various securities. The company was incorporated in 1981 and is headquartered in Taipei City, Taiwan.