OAT Agrio Co., Ltd. researches, develops, manufactures, and sells agrochemicals and fertilizers in Japan. The company offers plant protection products and biostimulants. It is also involved in the drug discovery, biological evaluation, formulation development, and pesticide registration activities. The company was formerly known as Otsuka Chemical Co., Ltd. and changed its name to OAT Agrio Co., Ltd. in 2014. OAT Agrio Co., Ltd. was founded in 1950 and is headquartered in Tokyo, Japan.