New Zealand's manufacturing sector has been in almost continuous expansion since October 2012, based on the Bank of New Zealand-BusinessNZ performance index.
However, over the longer-term, manufacturing has declined as a percentage of the economy, from about 26 per cent of gross domestic production 40 years ago to about 13 per cent in 2009, with a rise in services, now the biggest contributor to GDP.
The trend for the total manufacturing sales volume, which gives a longer-term picture of movements, has been mainly rising since mid-2013 but now appears to be easing, Liken said.
Of the 13 manufacturing industries measured, volumes of seven rose in the latest quarter, while five fell and one remained unchanged. Petroleum and coal product manufacturing volumes increased 5.7 per cent, while chemical, polymer and rubber product manufacturing rose 7 per cent.
In terms of the value of manufacturing sales, chemical, polymer and rubber manufacturing increased 9.8 per cent, while petroleum and coal product manufacturing rose 9.7 per cent.
The volume of finished goods stocks, which is not seasonally adjusted, was 1.6 per cent higher in the first quarter of this year than the same period a year earlier, Stats NZ said.