Prime Minister Srettha Thavisin gives a press interview in Tokyo on Thursday after meeting with executives of five leading Japanese companies during his visit to Japan. (Photo: Royal Thai Government)Several Japanese companies are interested in investing more and expanding their production bases in Thailand, in areas including biofuel production, green packaging, artificial intelligence (AI) and electric vehicles, Prime Minister Srettha Thavisin said on Thursday. Mitsui & Co expressed its intention to invest more in Thailand in the field of clean energy production in particular, said Mr Srettha. Mitsui reportedly said its interest in biofuel and clean energy in Thailand was inspired by a Thai government investment roadshow in Japan last December. The prime minister also discussed energy exploration, healthcare and green packaging with Mitsui executives, government officials said.