Dr Mathuki made the call when he met with US Ambassador to Tanzania and the EAC Amb Donald Wright in Dar es Salaam on Wednesday.
The two officials discussed potential areas of collaboration between the EAC and USA, namely trade and investment, and democracy and good governance.
Dr Mathuki thanked the United States for her continued support to the Community in the implementation of its various integration projects and programmes.
“At the EAC, we have enormous unexploited investment opportunities, specifically in the tourism industry and the energy sector,” said Dr Mathuki.
“I urge the American private sector through you your Excellency to take advantage of these opportunities,’’ said Dr Mathuki.
Dr Mathuki briefed the US envoy on the current EAC state of play on various integration matters including progress on consolidation of the Customs Union, implementation of the Common Market and Monetary Union Protocols, as well as progress towards attainment of the EAC Political Confederation.
Amb Wright told the Secretary General that the US was committed to supporting the integration process in East Africa, adding that integration was key to promoting economic growth and political stability in the region.
Also present at the occasion was the EAC Deputy Secretary General in charge of Planning and Infrastructure, Eng Steven Mlote.