UPDATE 1-UK union fears grow over future of GM's Vauxhall plants - source
February 20, 2017 at 08:18 AM EST
LONDON, Feb 20 (Reuters) - The head of Britain's biggest trade union is likely to meet the CEO of PSA Group on Friday amid growing concerns over the future of Vauxhall plants if the French carmaker buys the business from General Motors, a union source told Reuters.