The most timely indicator of manufacturing activity held up at robust levels last month.
The BNZ-Business New Zealand performance of manufacturing index (PMI) registered 56.4, essentially flat on November's read of 57 and well above the 50 level which distinguishes expansion from contraction in the sector.
The gauge has been in expansion territory for 15 consecutive months and averaged 56 over 2013.
New orders, at 61.4, was the strongest of the survey's constituent indicators and has been above 60 for five of the past six months, while finished stocks showed contraction for the first time since last April.
"The combination of strong new orders and falling inventory in the PMI is a positive indicator for more production ahead," said Bank of New Zealand economist Doug Steel.