An Ineos spokesperson said: “Following a period of planned maintenance at the Ineos FPS Kinneil facility our teams are preparing to restart a piece of processing plant. Through the week, as we commission, there will be spells of controlled elevated flaring at the Kinneil Terminal – this is part of the normal startup/commissioning process.
"We will do our utmost to reduce the level and duration of this flaring. We apologise for any inconvenience this may cause our local neighbours and thank you for your patience.
"We are committed to informing our local community and those who live and work nearby of our activities that may result in flaring.”
Ineos is also about to commence work on its multi-million pound new energy plant and have warned locals piling is imminent.