Consumer goods producers globally have lifted prices to cope with surging costs for almost all raw materials, energy and packaging after Russia's invasion of Ukraine compounded pandemic-related supply chain logjams.

But they face a challenge in how much they can raise prices without sacrificing sales as increasingly cost-conscious consumers trade down.

In addition, crippling rolling power cuts added direct costs of 22 million rand ($1.21 million) in the reporting period, the maker of Five Roses tea and Bakers biscuits said.

Headline earnings per share for the six-months ended Dec. 31 inched up to 318.9 cents, while operating profit rose by 1.7%.

Group revenue increased by 7.2%, driven by price increases in its tea and coffee, snacks and fashion businesses.

AVI said quickening inflation, higher interest rates and unemployment continued to constrain consumer spending, with sales lower in some categories and exacerbated by intense competition from rivals.

($1 = 18.1504 rand)

(Reporting by Nqobile Dludla; Editing by Christopher Cushing and Kim Coghill)