This is why it’s critical for the government to continue improving the economies of all regions across the country. There are plenty of untapped investment opportunities in regions such as Mwanza, Mtwara, Lindi and Rukwa. These are the areas that registered the highest growth rates last year as they moved to catch up with Dar es Salaam, whose contribution to the Gross Domestic Product (GDP), fell slightly from 17.2 per cent in 2015 to 17 per cent last year.