The acquisition is expected to increase Ebos's underlying ebitda by at least 5% in the 2018 financial year.
The Christchurch-based technology incubator raised $A10.9 million in an initial public offering, short of the A$20 million it had been seeking.
Cimic today said the second and final phase of the project will reap $82 million of revenue for its unit.
One of Christchurch's more unusual leasing opportunities.
The Manji Family Trust will buy 550,000 shares at 20c apiece.
Unsurprisingly, the number of general tourists and convention-bound visitors to Christchurch collapsed in the wake of the 2010 and 2011 earthquakes.
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