Sumitomo Chemical Co., Ltd. is a Japanese chemical company which provides products and services to a wide range of industries including plastics, energy, health and crop sciences, pharmaceuticals, and the IT-related chemicals sector. The company was founded in 1913 as a fertilizer manufacturing plant for the Sumitomo Clan and now has over 100 subsidiaries and affiliate businesses. Sumitomo Chemical Co., Ltd. employs 31,094 workers and is headquartered in Tokyo, Japan.