New British finance minister Jeremy Hunt on Monday reversed nearly all of Prime Minister Liz Truss's mini-budget that had sparked market turmoil, and reined in a vast energy subsidy plan, saying the country needed to rebuild investor confidence.

Hunt, appointed on Friday to fix the public finances after Truss's economic plan hammered the value of British assets, said the country needed to generate confidence and stability before it could seek to grow the economy.

He said changes to planned tax cuts would raise 32 billion pounds ($36 billion) every year. Government spending cuts will also be required to narrow a hole in public finances that the Sunday Times reported was as big as 72 billion pounds ($81 billion).

"I remain extremely confident about the UK's long term economic prospects as we deliver our mission to go for growth," he said in a televised clip. "But growth requires confidence and stability, and the United Kingdom will always pay its way."

Sterling extended its gains against the dollar, to be up 1.2% at 11.20 a.m. (1020 GMT), and government bond prices edged higher.

The near total reversal of the economic plan leaves Truss, Britain's fourth prime minister in six years, battling to survive in Downing Street less than six weeks after she came to power promising bold tax cuts and deregulation to reignite economic growth.

She has been forced to reverse course after markets reacted violently to her plan, hammering the value of the pound and government bond prices and forcing the Bank of England to intervene to protect pension funds.