The General Secretary of the RMT Union is expected to call for the creation of a "new party of labour" at today's Durham Miners' Gala.
Speaking in advance of the Gala, RMT General Secretary Bob Crow said: "There is a whole world of opportunity outside the constraints of the Labour Party and RMT would urge them to embrace it and join us in this new political project."
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North East favourite Greggs has seen a 6.4% sales increase since it began offering healthier foods such as salads and yoghurts.
The Prime Minister will detail her 12-point plan on negotiating Britain's exit from the European Union during a speech on Tuesday.
Extracts released by 10 Downing Street suggest Mrs May will say the UK will not settle for a "half-in, half-out" policy.