The South African Government has conceded that while its political relationship with Cuba is stronger that ever, much work remains on strengthening business ties. Deputy International Relations Minister Luwellyn Landers was speaking in Havana as Deputy President Cyril Ramaphosa arrived in Cuba to lead the second government and business delegation to the country in five years. Cuba's economic re-emergence is being buttressed by the updating of its socialist model and the easing of relations with the United States, despite the continued existence of the decades long economic embargo. Sherwin Bryce-Pease reports from Havana.