Following graduation, Nana signed with
Polpak Świecie of the
Polish League. He had a solid first season with the team, averaging 14.3 PPG and 7.6 RPG. Following this season he moved to fellow Polish League side
Turów Zgorzelec, which had qualified for the
ULEB Eurocup for the 2007-08 season. Despite his successful first season, he rarely cracked the rotation for his new squad, averaging less than four points and three rebounds per game in 27 league games and nine ULEB Eurocup games. Following this disappointing campaign, Nana moved to
Beirasar Rosalía of the
Spanish Basketball League for the 2008-09 season, averaging 10.0 PPG and 6.8 RPG in a successful first season with the new team. He later returned to
Poland to join
Polonia Warszawa for the 2009-10 season and since then he remained with the club. On 16 January 2011 at the
PLK All Star Match held in
Kalisz,
Poland, Harding led the South team to a great victory against the North 119-117 scoring 26 with 5 offensive rebounds and 2 defensive rebounds. He was the MVP of the 2011 Polish League All Star Game. ==National team career==