A member of the panel for the Grenfell Tower inquiry in London has resigned over links to the firm which supplied cladding for the building.
Benita Mehra had connections to Arconic's charitable arm, the Arconic Foundation.
A report following the first phase of the inquiry, published in October, said the cladding supplied by Arconic did not comply with building regulations.
Arconic said a "confluence of unfortunate circumstances" rather than the "mere presence" of the panels had caused the spread of the fire.
The fire in June 2017 claimed 72 lives - the first phase of the inquiry finding that the cladding was the "principal" reason for the flames' rapid spread.
Since her appointment was announced shortly before Christmas, it has emerged Ms Mehra was an immediate past president of the Women's Engineering Society (WES).
According to the society's website, it received funding from the Arconic Foundation for an apprentice conference last year.
Ms Mehra said her role at the WES was unpaid and the grant from Arconic was ringfenced to fund the mentoring scheme.
She wrote her letter of resignation to British Prime Minister Boris Johnson yesterday.
The engineer said she recognised and respected the "concern" and "depth of feeling" among survivors and the bereaved about her appointment.
Survivors' group Grenfell United said Ms Mehra had done the "dignified thing by resigning" and that her departure "helps lift growing anxiety ahead of phase two".
But it added that the government "should never have put families in this situation" and accused it of failing to "carry out basic checks".
Mayor of London Sadiq Khan said Ms Mehra's resignation was "welcome news" and her appointment should "never have been made in the first place".
Reporting by IRN
