 In 2018 and 2019 Kim took part in a diplomatic process, meeting with South Korean President Moon Jae-in and US President Donald Trump.North Korean authorities and state-run media have stated that Kim's birthdate was 8 January 1982, but South Korean intelligence officials believe the actual date is a year later.It is thought that Kim's official birth year was changed for symbolic reasons; 1982 marks 70 years after the birth of his grandfather, Kim Il-sung, and 40 years after the official birth of his father Kim Jong-il.