Concern over future UK agreements with non-EU countries
The impasse on the Canada deal bodes ill for a post-Brexit trade agreement with the UK.
British Prime Minister Theresa May said last week that it was "important" for the bloc to conclude the Canada deal, and said the UK would be looking for a bespoke agreement with the bloc after leaving.
UK Conservative MEP Syed Kamall said that "countries across the planet that are looking to open trade with the EU will be wondering whether it is worth years of effort".
The UK says it still wants to trade freely with the EU after leaving, but also wants to sign trade deals with non-EU countries.
This will have major impacts on Irish farmers, particularly beef and pig meat producers, who depend on the UK market for up to half of their exports.
Irish mushroom growers, whose contracts were negotiated in sterling, are already feeling the negative effects of Brexit after to the plunge in the value of the British pound.
Several have gone bankrupt since the UK's June vote to leave the EU.