The first phase of Bombardier's £520m aircraft manufacturing programme in Belfast has been completed on schedule.
The 600,000 sq ft facility will house the manufacture and assembly of the advanced composite wings for the CSeries aircraft.
The CSeries wing programme represents the largest-ever single investment in Northern Ireland. It follows a difficult business period, during which the company lost 900 subcontractors and 300 employees.
The first phase of the new building incorporates a production area, a low contamination 'clean room' area and an area for tool storage.The main equipment is currently being installed in the new facility.
Michael Ryan, vice-president and general manager of Bombardier Aerospace, said: "A year ago, we celebrated the start of construction of this brand new facility, and I am delighted that the first phase of this major investment - the largest ever in Northern Ireland - is now complete.
"We are also progressing with the composite wing development and test programme as planned, and look forward to starting production of the CSeries aircraft wing early next year."