Sumitomo (OTCMKTS:SSUMY) Chemical Co., Ltd. (OTCMKTS: SSUMY) is a diversified chemical manufacturer based in Tokyo, Japan. Established in 1913 as Japan Dyestuff Company, it became Sumitomo Chemical in 1925 and has since grown into one of the core companies within the Sumitomo Group. Over its more than a century-long history, the company has expanded beyond basic dyes into a broad portfolio of chemical products and technologies.
The company’s operations are organized into several business segments, including petrochemicals and plastics, energy and functional materials, IT-related chemicals, health and crop sciences, and pharmaceuticals. In petrochemicals, Sumitomo Chemical produces ethylene, propylene, and various polymers used in packaging, automotive parts, and construction materials. Its energy and functional materials division supplies lithium-ion battery components, high-performance ceramics, and specialty films. Through IT-related chemicals, the company serves display, electronics, and semiconductor markets with advanced materials for liquid crystal displays and circuit boards.
In recent decades, Sumitomo Chemical has bolstered its health and crop sciences portfolio by developing agrochemicals, fertilizers and environmental control solutions designed to support sustainable agriculture. Its pharmaceutical arm focuses on small-molecule drugs and investigational compounds targeting metabolic disorders, cancer, and infectious diseases. Research and development remain a core strength, with multiple R&D centers across Japan, Asia, Europe and North America working on next-generation materials and life-science innovations.
Sumitomo Chemical serves customers in more than 80 countries, maintaining manufacturing sites in Japan, China, the United States, Singapore and Europe. The company is governed by a board of directors headquartered in Tokyo and led by a president and CEO. It continues to pursue growth through technological advancement, strategic partnerships and a commitment to environmental stewardship and social responsibility.
