
The Purchasing Managers’ Index – a key measure of industrial output – was 49.4, the National Bureau of Statistics (NBS) said, up slightly from 49.3 in July.
A Bloomberg analysts’ poll had forecasted the index would be 49.5.
The last time China recorded a figure above 50 – indicating growth – was in March.
NBS statistician Zhao Qinghe hailed the improvement from a month earlier as evidence that “overall economic prosperity continues to expand”.
“The business climate has improved,” he said.
In July, the NBS attributed manufacturing’s struggles to severe weather, including floods and high temperatures.
China has struggled to maintain a strong economic recovery since the pandemic, as it fights a debt crisis in the crucial property sector, chronically low consumption and elevated youth unemployment.
China’s bruising trade war with the US – now on hold pending a deal – has hit the export-dependent economy.
Beijing and Washington have extended a truce on most reciprocal duties to Nov 10 as they continue talks.
Senior Chinese trade negotiator Li Chenggang urged “equal dialogue and consultation” between the two nations when he concluded a three-day visit to the US on Friday, according to a statement from China’s commerce ministry.