<span style="color: #000000; font-family: verdana; font-size: 12px; text-align: justify;">The World Trade Organisation (WTO) has expressed concern over US President Donald Trump's plan to impose tariffs on steel and aluminium imports. WTO Director-General Roberto Azevedo said in a statement that a trade war would be in no one's interests.<br style="color: #000000; font-family: verdana; font-size: 12px; text-align: justify;" />''<br style="color: #000000; font-family: verdana; font-size: 12px; text-align: justify;" />''European Union officials have said they will respond firmly if Mr Trump presses ahead with his plan for steep global duties on metals. On Thursday, the US President announced plans to impose 25 percent tariff on steel imports and 10 percent on aluminium next week.</span>