Waste Management NZ, which is up for sale, posted a 10.6 per cent increase in operating earnings for the first half to December 31, its Australian parent company, Transpacific Industries, said.
The New Zealand company's revenue for the six months was up 8.1 per cent at $182.4 million and its earnings before interest, tax depreciation and amortisation came to $46.1m, up from $41.7m a year earlier.
Transpacific said new Auckland municipal contracts started last July and that the Christchurch rebuild had gained momentum with an increase in housing starts.
The company said there had been sold growth in landfill volumes in New Zealand and that it had expanded its position in Wellington.
The once-troubled parent company reported a statutory profit after tax of A$158.6 million for the six months, up from A$32.3 million in the previous corresponding period.