Speaking at the inauguration ceremony, the company's general director Yuzuru Tsuchiya said they are aiming to provide high quality products to the Asian market at competitive prices.
The $14 million project will process 300 to 480 billion tonnes of products annually to serve the petrochemical and food industries.
Most of their finished products will be exported to Japan and other Asian countries.
Construction of the plant started last July, and it should be ready to go into operation next month as scheduled.
It will create jobs for 40 people initially, and 100 employees when it is fully operational.
Nippon Kyohan is the company's main investor.
Nippon Kyohan selected the Dinh Vu IZ because of its strategic location, access to the port, reliable utilities and tax incentives.
Nippon Kyohan is one of six Japanese tenants at the IZ, which has attracted more than 43 projects with total investment of $41.54 billion , of which Japanese investment represents approximately 45 per cent.