Angola’s central bank will release the first of its new polymer banknotes this month, but will hold off releasing the highest denomination unless “absolutely necessary”.

A new 200 kwanza ($0.35) banknote will enter circulation on July 30, governor José de Lima Massano said in a speech on July 8.This will be followed by the 500, 1,000, and 2,000 banknote, all of which will be printed on a new polymer substrate.

Massano said the new substrate will allow it to incorporate tougher security