By Jessica Frank-Keyes New tariffs are set to hit British firms exporting to Canada from Easter Monday, after attempts to extend the trade exemption failed. As of April 1, industries including car manufacturers, processed foods and chemical exports will lose the tariff-free access to Canada they currently benefit from. The exemption from rules placing tariffs on goods with parts from the EU was temporarily agreed under the trade deal rolled over with the North American nation post-Brexit in 2021. But now the status is set to expire and the UK has been unable to agree a deal with Canada to exte…