Afe 1962 mu no, Kofi Annan hyɛɛ edwumayɛ ase wɔ World Health Organisation sɛ Budget Officer. 1974 ne 1976 ntam no, na ɔhwɛ Ghana nsrahwɛ nsɛm so. Ɔsan kɔɔ United Nations (UN) na hɔ na ɔtenae kosi 2006 .