Informa has agreed a cash and shares deal for the acquisition of events organiser UBM.
The companies said that UBM shareholders would receive 1.083 Informa shares; and 163p in cash fore each UBM share - a premium of around 30% to the closing price omn 15 Jan.
It is expected that the combined group will be owned c.65.5% by Informa shareholders and c.34.5% by UBM shareholders.
Informa chief executive Stephen A. Carter said: 'It is clear that the B2B market is moving to operating scale and industry specialisation.
'The combined group will have the reach and market capabilities to take full advantage of these trends.'
He added:'We are today proposing the creation of a B2B information services group, which will be ideally positioned to serve a market demanding ever greater operating scale and industry specialisation.
'The combined group will have the international reach, operational capabilities and cashflow to pursue the full growth opportunities this creates.'
(LON:INF) Informa PLC share price was -40.7p at 706.7p
(LON:UBM) UBM Plc share price was +127.75p at 914.25p