Tsingtao Brewery Co Ltd (>> Tsingtao Brewery Co Ltd), China's number two brewer, posted its steepest drop in net profit in 20 years last week, blaming tough competition and weak demand. Noodle maker Tingyi (>> Tingyi (Cayman Islands) Holding Corp.) saw profits drop by a third.

China's top cinema operator Wanda Cinema Line (>> Wanda Cinema Line Co Ltd) saw 2016 profits rise 15.2 percent - down from growth of nearly 50 percent the year before, as broader box office sales stalled. IMAX China's (>> IMAX China Holding Inc) profit tumbled, too.

"There's still a tonne of room for growth, but these markets are much more competitive now and even bigger brands are starting to struggle," said Ben Cavender, Shanghai-based principal at China Market Research Group.

"Consumers are becoming more cagey about how they're spending their money, (from) food to clothing and movies."

Increased caution - and sophistication - will push companies to innovate, and to spend more to fend off competitors, if they are to survive, analysts said.

After growing at the slowest pace in 26 years in 2016, official data have indicated a strong start to the economy this year, supported by bank lending, a government infrastructure spree and a much-needed resurgence in private investment.

But China's consumption trends have been less clear.

Retail sales in December rose at their fastest pace in a year, thanks to cars and cosmetics, but they disappointed in the first two months of this year.

Consumption contributed the bulk of China's growth last year at nearly 65 percent, but income growth didn't pick up, and a measure of China's income inequality rose slightly last year.

A private business survey last month showed growth in the services sector slowed to a four-month low as increasing competition made it harder for companies to pass higher input costs on to consumers.

To be sure, the picture from recent earnings reports is not comprehensive nor uniform.

But the drop in profits of some of China's best-known names flags the uneven nature of the country's gradual shift to a consumer-driven economy, and the challenge for both brands and Beijing, which needs to stoke domestic consumption and private investment to fuel growth.

Of course there were bright spots.

In areas like sports apparel, firms such as Li Ning Co Ltd (>> Li Ning Co. Ltd.) and ANTA Sports (>> ANTA Sports Products Ltd) predicted a boost as China looks to build its sports industry and consumers become increasingly health conscious. Li Ning's profits rose sharply.

But global uncertainties - from the impact of trade policies under new U.S. President Donald Trump to political uncertainty in Europe - are expected to cloud the year.

"In 2017, great uncertainties in the economic outlook remain in view of the changes in political and economic policies in some key regions," China Resources Beer (>> China Resources Beer Holdings Co Ltd) said.

The brewer reported sluggish sales growth, but also its first annual profit in three years this month.

Retailers also reported a mixed outlook, although a slowdown in e-commerce was creating opportunities elsewhere.

White goods maker Qingdao Haier (>> Qingdao Haier Co., Ltd.), which posted annual net profit growth of 3.1 percent, said China was in a new normal of consumer growth - but expects sales to eventually accelerate with rising salaries and demand for high-tech homes.

Others bore the cost of change: home appliance retailer GOME (>> GOME Electrical Appliances Holding Ltd.) posted a 73 percent drop in full-year profit as it spent on a strategic shake-up.

"Looking into 2017, it is expected that (the Chinese) and global economy will continue to face downward pressure, leading to sluggish market demand," said Chairman Li Dongsheng of television maker TCL Multimedia (>> TCL Multimedia Technology Holdings Ltd.).

(Reporting by Adam Jourdan in SHANGHAI and Donny Kwok in HONG KONG; Editing by Kim Coghill)

By Donny Kwok and Adam Jourdan