Founded in 2005, Tsunko initially specialized in plastic mold design and development. After eight years of experience in mold development and design, the company further expanded its expertise, integrating product design, mold development, and plastic injection molding. Subsequently, in response to customer needs, the company established plastics, printing, and quality control departments, along with five technical assembly and packaging production lines. These departments provide customers with a comprehensive, integrated service from product design → mold development → plastic injection → printing → assembly → packaging → loading and shipping. This not only reduces customer costs but also significantly improves product yield, creating a higher value for Taiwanese premium products.

In 2022, the company acquired a baby product manufacturer and launched a comprehensive line of "zero-plastic" containers made of eco-friendly materials that can be decomposed naturally and recycled into non-food items.