The plant, which has a registered capital of US$10 million, is able to produce 132 million electronic units per year.
It is expected to generate job for nearly 3,000 workers, and help increase the local export turnover.
Sumida Electronic Vietnam Ltd received an investment license to build the factory at Tinh Phong Industrial Park in Son Tinh district in April 2015.
This is the fourth foreign direct investment (FDI) project of Japanese investors in Quang Ngai and the sixth of its kind at the Tinh Phong Industrial Park.
Sumida Electronic Vietnam Ltd is a branch of the Japanese Sumida Company. It set up its first factory in the northern city of Haiphong in 2010.
It specialises in manufacturing signal products, power inductors and other related components used in household electronics, automated components and medical equipments.