The Amir His Highness Sheikh Tamim bin Hamad Al Thani received the credentials of four new ambassadors to Qatar at his Amiri Diwan office on Tuesday.HH the Amir received the credentials of Ambassador of the European Union HE Cristian Tudor, Ambassador of the Czech Republic HE Peter Chalupsky, Ambassador of Mali HE Amadou Diem and Ambassador of the United States of America HE Timmy Davis.HH the Amir welcomed the new ambassadors, wishing them success in their duties and further development and growth in the ties between Qatar and their countries.For their part, the ambassadors conveyed the greetings of the leaders of their countries to HH the Amir and their wishes of further development and progress for the Qatari people.