It will supply 250W solar panels for a plant the group will build, finance and own in the city of Hamada, Shimane prefecture.
The company will initially construct 11MW, followed by 20MW at a later date. It did not reveal when it expects to finish building the two-phase project.
The Znshine group — based in Changzhou, in eastern China’s Jiangsu province — will invest roughly ¥10bn ($91.6m)