South Africa's National Treasury intends to stick to a balanced fiscal stance under a coalition government, its director-general said on Tuesday, after the African National Congress lost its majority in last week's election.

"I think that our fiscal strategy is achievable, even in a coalition environment ... because it's quite balanced," Duncan Pieterse told Reuters in an interview.

"A balanced macro-fiscal stance becomes more defensible in an uncertain political environment. And we intend to continue managing the fiscal stance along those lines," he added.

(Reporting by Kopano Gumbi Writing by Alexander Winning Editing by Joe Bavier)