The BBC is being asked to pay more than £13 million to a building materials firm for the use of building material in its own production facilities, it has been reported.
It is understood the company, Mottram & Co, paid the BBC £11.8 million for the material.
The BBC has previously said it will pay around £2 million to its suppliers for the same materials.
A spokesman for the BBC said: “The BBC pays Mottrams for the production of its building materials.
Mottams is a leading supplier of building products and we have an ongoing arrangement with them that we have signed up to continue.”
As with all contracts, it is the BBC’s view that the material will only be used for the purpose for which it was used.
“We have an agreement with Mottam that is for an indefinite period.”
The BBC said it had not received any payments to Mottombs from the BBC.
Mowbray’s company, which also produces building materials for the Royal British Legion and the Royal College of General Practitioners, is being investigated by the Financial Conduct Authority over allegations of serious financial misconduct.
We are continuing to investigate the matter and have no further comment.”