International CSRC Investment Holdings Co., Ltd. engages primarily in the production and sale of carbon black and related products; it operates in the specialty chemicals sector with segments including carbon black, battery materials, and biotechnology research and development. The company manufactures carbon black used in tires, rubber products, plastics, printing inks, coatings, and conductive applications; it also produces and sells carbon masterbatch, steam, and battery-related products while providing investment consultation services. Founded in 1973 and headquartered in Taipei, Taiwan, International CSRC Investment Holdings serves markets in Asia, the United States, and other international regions; it was formerly known as China Synthetic Rubber Corporation until renaming in October 2018 following a spin-off of its biotechnology business into a wholly-owned subsidiary. Recent developments include a NT$35 million funding commitment to CSRC Ltd. announced in November 2025 and ongoing expansion in high-performance battery production and sustainable carbon black innovations, such as low-rolling-resistance grades and non-toxic variants introduced since 2020.