French aerospace companies that have long - term investments in the UK , France 's second - largest trading partner , are increasingly concerned about uncertainty surrounding Brexit . There is at stake the flow of goods, investment and staff movement across the channel. Eric Trappier , president of the French aerospace industry body Gifas , said questions surrounding equipment certification , the status of French staff in the UK and customs clearance had yet to be answered . Gifas called for increased transparency and for the transition to be " as smooth as possible " to avoid supply - chain disruption .
French aerospace companies that have long - term investments in the UK , France 's second - largest trading partner , are increasingly concerned about uncertainty surrounding Brexit . Eric Trappier , president of the French aerospace industry body Gifas , said questions surrounding equipment certification , the status of French staff in the UK and customs clearance had yet to be answered . Gifas called for increased transparency and for the transition to be " as smooth as possible " to avoid supply - chain disruption .