Downing Street has said it is "confident" the raw materials needed to keep the furnaces at British Steel's Scunthorpe site switched on will reach it in time.
The government has been attempting to source the materials needed to fuel the plant's central blast furnaces since taking control of it on Saturday, and has confirmed a shipment will arrive "in the coming days".
Ministers seized control of operations after talks with British Steel's Chinese owner Jingye broke down, and the government accused the firm of planning to switch the furnaces off.
Beijing has accused the British government of "politicising trade co-operation", and said the move raised doubts about investment in the UK.
Officials had been attempting to obtain the coking coal and iron pellets needed to keep the steel-producing furnaces running – materials which ministers have accused Jingye of selling off.
Speaking during a visit to the site on Monday, Deputy Prime Minister Angela Rayner said "everything is in place" for the furnaces to continue to fire after the materials were secured.
Prime Minister Sir Keir Starmer's official spokesman had earlier confirmed that two shipments of both materials are being held at Immingham docks, 30 miles east of Scunthorpe, and will reach the steelworks first, while a third shipment of raw materials is onboard a vessel off the coast of Africa that is making its way to the UK.
Sourcing and transporting the raw materials to the Scunthorpe plant is critical because if a blast furnace goes out, in most cases it is unable to be restarted. Even its temperature dropping too low can cause permanent damage.