Theresa May arrived in Wolverhampton to meet the new West Midlands Mayor Andy Street.
The Conservative party leader visited UTC Aerospace this afternoon to herald Mr Street's nail-biting win.
Mr Street edged out Labour's Sion Simon at yesterday's count to win the historic poll and become the West Midlands' first metro mayor.
The former John Lewis boss, aged 53, beat Mr Simon, a former Birmingham Erdington MP, in the tight contest that was decided on second preference votes.
The Prime Minister told the Express & Star: "I would like to congratulate Andy Street on winning the West Midlands mayoralty.
"People here in the West Midlands now have a strong local champion in Andy who will get on with the job for delivering for the local area.
"A strong mayor here in the West Midlands, a Conservative mayor, working with a Conservative government can deliver for this region.
"I have seen in visits to companies I have done with Andy his determination to ensure there is investment, job and opportunities for the people here in the West Midlands."
Mr Street said he and the Prime Minister spoke about the region's 'industrial strategy' and how it was famed for its automotive industry and aerospace sector.
They met with workers and apprentices at the Stafford Road firm.
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