The prime minister has said the UK is “perfectly entitled” to demand change, reports The BBC.
But leaders including Virgin’s Sir Richard Branson and BT’s Sir Michael Rake say calls for “wholesale” revision could mean “damaging uncertainty”.
Billions of pounds in taxes could be lost, they told the Financial Times.
David Cameron "chugged down" cups of rice wine during a visit to Japan last year, Yoshihiko Noda, the former Japanese prime minister has revealed. Mr Cameron made his first official visit to Japan last year to promote trade and investment.