 Their first son, Oleksiy, was born in 1985 (his three other children were born in 2000 and 2001).From 1989 to 1992 Poroshenko was an assistant at the university's international economic relations department.While still a student, he founded a legal advisory firm mediating the negotiation of contracts in foreign trade, and then he undertook the negotiations himself, starting to supply cocoa beans to the Soviet chocolate industry in 1991.