The reading will likely add to calls for officials to do more to breathe life into the economy, with central bank interest rate cuts and measures to boost lending having little impact so far.
The 0.8 percent drop in the consumer price index, revealed by the National Bureau of Statistics (NBS), marked the fourth straight month of deflation and was much bigger than the 0.5 percent fall forecast in a survey by Bloomberg News.
The reading was the worst since the second half of 2009, during the global financial crisis.
And a 2.5 percent plunge in the producer price index (PPI) — which measures the cost of goods leaving factories — signalled continued weakness.
The NBS said the figures reflected the “high base of the Spring Festival holiday in the same period last year”.
China slipped into deflation in July for the first time since 2021 and — apart from a brief rebound in August — have been in constant decline since.
While deflation suggests goods were cheaper, it poses a threat to the broader economy as consumers tend to postpone purchases, hoping for further reductions.
A lack of demand can then force companies to cut production, freeze hiring or lay off workers, while potentially also having to discount existing stocks — dampening profitability even as costs remain the same.
