Boeing ( NYSE: BA) is set to take control of part of Spirit AeroSystems' ( NYSE: SPR) operations in Belfast, Ireland, alongside rival Airbus ( OTCPK:EADSF) ( OTCPK:EADSY ), as efforts to find an independent buyer for the site have so far fallen short.

Boeing's impending acquisition of Spirit AeroSystems is under investigation by an antitrust regulatory agency in the U.K., which could result in delays for the deal. Boeing increases 737 Max production,

Britain's competition regulator said on Monday it has started a Phase 1 investigation into Boeing's planned acquisition of Spirit Aerosystems , setting a deadline of August 28 for a decision.