The interim results show profit from events was up 29.6% in the six months between January and June 2012, excluding corporate costs.
The results come after UMB revealed in February that profit from events had soared 44.6% last year compared to 2010 to represent 62.5% of total profit in 2011.
UBM bought Ecobuild a year ago and acquired four trade shows abroad in February. It expects an underlying growth for events of 12%-14% for 2012. In contrast, it expects its online and print marketing services to deliver growth of between 0%-2%.
David Levin, chief executive of UBM, said: "Our events portfolio performed very well with good attendee-led technology events in the US, an above-plan performance at Ecobuild in its first edition under UBM ownership, and strong results from our events in emerging markets, particularly in China."
He added: "While our business is trending positively, we are retaining our consolidated guidance as we are mindful of the uncertain external environment."
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