Nakajima revealed the figure at his recent working session with Vietnamese Minister of Planning and Investment Nguyen Chi Dung.
The rate is the highest in the ASEAN region and third in Asia-Pacific only after India and Bangladesh, said Nakajima.
The percentage of Japanese businesses shrinking or moving to other nations or territories is only 1.1 percent.
Another survey of JETRO also showed Viet Nam ranks only after the U.S. as a favorite destination for investment from Japanese companies.
Over 59.5 percent of Japanese enterprises in Viet Nam reported profits in 2022, up 5.2 points compared to the previous year.
Regarding prospects in 2023, 53.6 percent of surveyed Japanese businesses answered "improved", the highest in Asia and Oceania.
At the meeting, Minister Nguyen spoke highly of the role played by JETRO in making contributions to policy making in Viet Nam and encouraging more Japanese enterprises to seek for further investment in the country.
Japan was the third biggest foreign direct investor in Viet Nam last year after Singapore and the Republic of Korea, with total registered capital of nearly US$3.9 billion, accounting for 12.5 percent of the total foreign investment inflows to the Southeast Asian nation./.