Kingspan has refused to comment on reports that it has begun disciplinary procedures and investigations of some present and former staff arising from the Grenfell Tower Inquiry.
The claim is made in today's Irish Times, but in a statement to Shannonside Northern Sound, a Kingspan spokesperson said the company didn't "have any comment on your specific questions".
On Monday, the Grenfell Tower Inquiry heard that a former manager with Kingspan emailed colleagues to complain about an engineering consultancy firm that questioned the safety of a Kingspan product.
The former manager apologised for his email and said it was "totally unprofessional".