Britain's manufacturers suffered higher costs for production materials last month, fuelling concerns about mounting inflationary pressures.
Input prices rose 0.9% in November compared with October, the Office for National Statistics (ONS) said. That compared with market expectations for a gain of 0.8%.
The large increase largely reflected higher prices for crude oil and fuels, according to the ONS.
On a 12-month basis, prices surged 9% last month compared with November 2009. That beat forecasts for an 8.3% increase and followed a hefty annual gain of 8.2% in October.
The ONS had said on Friday that output costs - the price of goods leaving factories - had slowed to an annual rate of 3.9% in November, following 4% in October.
Official UK inflation data are to be published tomorrow. The Bank of England's central task is to try and keep annual British consumer price inflation close to a government-set target of 2%, but annual inflation hit a four-month high of 3.2% in October.
