However, data shows negative impact of leaving EU on trade between republic and Great Britain
The value of trade between Northern Ireland and Ireland has rocketed since Brexit with cross-border business increasing in both directions, official data shows.
Figures released on Wednesday by the Central Statistics Office (CSO) in Dublin show that the value of imports from Northern Ireland surged by 60% in the first nine months of 2021 and are now valued at €2.8bn (£2.37bn).