Two companies face prosecution following an explosion at the Pembroke Refinery on 2 June 2011, HSE has announced.
The explosion and subsequent fire occurred at the site during tank-cleaning operations within the amine recovery unit and resulted in the death of four people, and serious injuries to one other.
Valero Energy UK Limited and B & A Contracts Limited are to face charges under Sections 2(1) and 3(1) of the Health and Safety at Work etc Act 1974.
The case will be heard on 24 September 2018.
HSE’s Deputy Director Field Operations, Jane Lassey, said: “Following a painstaking and extremely thorough investigation, much of which was conducted jointly with Dyfed Powys Police, we have concluded that there is sufficient evidence to bring criminal charges.”
