Australia’s biggest beef exporter estimates a “tenfold” boost to its UK sales if Boris Johnson backs a zero-tariff trade deal with the country, the Financial Times reports. Hugh Killen, chief executive of The Australian Agricultural Company, says in the event of a “free-trade deal that removes tariffs and quotas” he could expect to see exports “double or triple” but that given exports are “so small now”, could possibly “increase tenfold”. The paper points out that although the PM supports an “ambitious” post-Brexit trade deal with Australia, his government’s official analysis warns “it could cost British farmers their jobs and leave Northern Ireland worse off”.