The world's number-two economy has been hamstrung by lacklustre domestic consumption since the end of the Covid-19 pandemic, presenting a major hurdle to government growth targets.

But this year's nine-day public holiday -- the longest in history -- starts on Sunday and has been touted by officials as a chance to kickstart activity.

In the latest blow to efforts to revive economic activity, figures from the National Bureau of Statistics (NBS) on Wednesday showed the consumer price index, a key measure of inflation, slowed to 0.2 percent on-year in January.

That was well down from December's 0.8 percent, which was the quickest in almost three years, and short of the 0.4 percent rise forecast in a Bloomberg survey.

China's vast economy has stagnated in recent years, despite a historic boom in exports.

Authorities have adopted measures to boost consumption, including a subsidy scheme for household goods, but results have been muted.

Consumer inflation is "likely to bounce back in February", wrote Zichun Huang of Capital Economics. But she added that "with the imbalances between supply and demand set to persist, we doubt China's deflationary pressures will fade any time soon".

Officials vowed at a news conference in Beijing on Wednesday to enact further measures to encourage domestic spending.

Local authorities across China have allocated 2.05 billion yuan ($297 million) to "directly benefit consumers" during the upcoming holiday, said Vice Minister of Commerce Sheng Qiuping.

The "New Year's gifts" will be distributed through vouchers, subsidies and traditional red envelopes containing money, state broadcaster CCTV said.

In a stark sign that the spending slump has hurt businesses, the operator of a popular restaurant chain specialising in Shanghai cuisine announced Tuesday the sudden closure of 10 locations in the eastern Chinese metropolis.

The shutting of the Shanghai Min outlets is temporary, Shanghai XNG Holdings said in a statement on the Hong Kong Stock Exchange.

However, it added that the decision was made because of a "sustained lack of profitability" in a "challenging business environment".

Other government data released Wednesday suggested a recent easing of persistent deflation in the manufacturing sector.

Prices at the factory gate -- stuck in negative territory since October 2022 -- fell at a slower rate last month, NBS data showed.

The producer price index's 1.4 percent year-on-year decrease was the slowest pace of deflation since July 2024.

It was also slightly better than the 1.5 decrease forecast in the Bloomberg survey.

Improvements were "concentrated in non-ferrous metals, likely reflecting recent volatility in global commodity markets," wrote Huang.

PPI expanded 0.4 percent month-on-month.

That growth "suggests the deflationary pressure in the manufacturing sector may have become less severe", wrote Zhang Zhiwei, president and chief economist of Pinpoint Asset Management.

Official data released last month showed China's economy grew five percent in 2025, meeting the government's target but among the slowest rates in decades.

Experts expect leaders to announce the same or a slightly lower goal for this year at a key political gathering in early March.