The UK- and Ireland-focussed premium burger brand GBK previously forecast that in July 2020 it would target achieving 49% of the revenue it posted in July 2019.

"It is pleasing to report that this was accomplished," Famous Brands said in a statement, adding this was achieved with the 27 restaurants it kept open for the delivery and collection of food parcels.

The future of the unit is uncertain, however, after Famous Brands said in April it would not provide any further financial assistance to GBK.

"The Board of GBK will continue to explore all options to ensure the long-term sustainability of the business," the company said.

The owner of hamburger fast food chain Steers and casual dining restaurant Wimpy said that out of its 62 GBK stores in the United Kingdom, 37 are open and offering full service, which includes delivery, collection and dine-in.

The remaining 25 stores are closed and in Ireland, one restaurant is fully operating out of five, it said.

Famous Brands spent more than 2.3 billion rand ($132.03 million) in 2016 to buy out GBK, but the South African company has twice had to write down part of its investment in the unit and pump money into it for its survival.

($1 = 17.4209 rand)

(Reporting by Promit Mukherjee; editing by Barbara Lewis)