The Green Party has announced its candidate for Mayor of Newham, Chidi Oti-Obihara.
According to the local party website, he
… lives in Beckton and became a member of the Green Party while working with us on our investigations into Newham Council’s mis-sold Lender Option, Borrower Option (‘LOBO’) loans.
Previously an Investment Banker, Chidi turned whistle-blower in 2007 and testified to Parliament about the practices he’d witnessed and been bullied for not colluding with. He now works as an independent financial consultant.
Chidi Oti-Obihara was the party’s candidate for East Ham at last year’s general election.
He joins Labour’s Rokhsana Fiaz, Conservative Rahima Khan and Liberal Democrat Gareth Evans on the ballot.
UPDATE (9 April 2018):
Newham Green Party has announced that it will not be proceeding with a mayoral nomination:
“A number of factors led to our decision, including the fact that Chidi’s caring responsibilities meant that he couldn’t dedicate the time to it that he wanted, as well as our not wanting to stand in the way of a Labour candidate who has consistently opposed the current mayor and his financial scandals and dictatorial style.”
forestgatedotnet 
but not nominated!
How odd!