Mushrooms are a significant industry in Ireland and one that bears the significant exposure from Brexit negotiations. Irish producers grow around 70,000 tons of mushrooms each year, 80% of which are sold in the UK, for a value of €120 million each year. Fresh mushrooms need to be sold very quickly after harvest, about 5 to 7 days. The industry is heavily dependent on the open border between Northern Ireland and the Republic of Ireland with producers poised close to the border and working together on a cross-border basis to purchase supplies and transport their harvested produce.