The headline rate of output inflation for goods leaving the factory gate was 3.1% on the year to November 2018, down from 3.3% in October 2018.
The growth rate of prices for materials and fuels used in the manufacturing process slowed to 5.6% on the year to November 2018, down from 10.3% in October 2018.
All product groups provided upward contributions to output and input annual inflation.
Crude oil provided the largest contribution to the change in the annual rate of input inflation.