Political uncertainty puts London listing for Saudi Aramco in doubt

Decision to rule out UK and Hong Kong would be major blow to both financial centres

Saudi Arabia's revived plans for a $2tn mega-listing of its state oil company may rule out the London Stock Exchange amid Britain's rising political uncertainty, according to reports.

Saudi Aramco, the world's most profitable company, may instead look to Japan's Tokyo stock exchange to host the second phase of what would be the biggest public offering in history.