China's September factory gate inflation rose to a record on soaring commodity prices, but weak demand capped consumer inflation.
This will force policymakers to walk a tight rope between supporting the economy and further stoking producer prices.
The producer price index (PPI) rose 10.7% from a year earlier in September, the National Bureau of Statistics (NBS) said today, the biggest rise since the bureau started compiling the data in 1996.
Economists in a Reuters poll had expected a 10.5% rise, after a 9.5% increase in August.
Producer prices have risen due to output curbs caused by a power crunch at a home and a months-long global commodity price rally.
But Chinese businesses have been reluctant to pass on the higher costs to local customers due to already soft orders.
Data today showed consumer inflation eased last month, weighed by weak demand for goods from clothing to household appliances, as well as a decline in volatile food prices.
Underpinning producer prices, global commodity prices surged in recent months driven by increased demand for coal and metals as economies around the world reopened after being shut due to the Covid-19 pandemic.
Labour shortages and transportation bottlenecks have also lifted prices globally.
Adding to the price pressures in China, widespread power cuts in September disrupted output across the cement, steel，and aluminum industries, and even halted production at numerous factories including many supplying big global brands such as Apple.
China's power crunch has stemmed from a coal shortage amid efforts to meet decarbonisation goals and record prices of the fuel.
Prices rose in 36 out of 40 industrial sectors last month, up from 32 sectors in August, the data showed. Prices in mining and coal jumped 74.9%, up sharply from August's 57.1% rise.
But the consumer price index rose 0.7% year-on-year in September, slowing from a 0.8% increase in August and below a forecast for a 0.9% rise in the Reuters poll.
"Bottlenecks in the supply side continue to exist and the demand was weak so producers cannot pass through the costs. This is a painful process the Chinese economy has to go through," said Zhou Hao, senior EM economist at Commerzbank.
China's economic growth is expected to slow to 5.2% year-on-year in the third quarter from 7.9% in April-June, a recent Reuters poll showed.
Rising price pressures come despite Beijing taking a raft of measures to curb record-high coal prices and ease the country's power crunch, including urging coal miners to boost output and manage electricity demand at industrial plants.
The government said last week that it will allow coal-fired power prices to fluctuate by up to 20% from base levels, a loosening of previous limits.
The People's Bank of China has kept its benchmark rate for corporate and household loans unchanged for 17 months, while it last lowered the reserve requirements in mid-July.
Core inflation, which strips out volatile food and energy prices, reached 1.2% in September, unchanged from August.
However, in a sign that consumer inflation is not indefinitely immune to broader price pressures, Foshan Haitian, China' largest manufacturer of soy sauce, said this week it plans to raise prices by as much as 7% from October 25 due to rising costs for raw materials, transportation and energy.
