Reach, the publisher of the Daily Mirror, said it needed Britain to avoid a disorderly exit from the European Union if it was to continue making good progress, as it reported 2018 profits ahead of forecasts.
Previously called Trinity Mirror, Reach's said its adjusted operating profit rose 16.8% to £145.6m.
This was ahead of forecasts of £140m as the company was boosted by the acquisition of the Daily Express and Star titles and digital growth.
"Subject to there being no significant adverse implications arising from the UK's exit from the European Union, we are confident that our strategy will enable continued progress to support profit and cash flow," it said.
The group took a non-cash impairment charge of £200m relating to historic pension changes.