The Trust have released a statement to say they are are 'heartbroken at the loss of our much-loved colleague' and have been in contact with the family.

BASF which owns the plant, has also served notice on its contract with INEOS to supply services and utilities to their Teesside plant, until 2028.

The Conservative MPs, Simon Clarke, Peter Gibson, Paul Howell, Matt Vickers and Jacob Young are urging their party to move the Tees Valley out of Tier 3.