The move comes after Japanese businesspeople advised the Board of Investment that they want to enter Thailand to run their existing businesses here.
They are currently prevented from doing so because Thailand requires them to first undergo a Covid-19 test in their own country. However, Japan is only testing suspected patients.
Saksayam said that he still wants any future foreign arrivals to strictly follow Thai public health rules.
If the measures planned for Japanese businesspeople are successful, they will become standard protocol for others entering Thailand, he added.
Chula Sukmanop, director-general of the Civil Aviation Authority of Thailand (CAAT), said the restrictions on inbound and outbound flights remain in place.