[HONG KONG] Chinese stocks tumbled, extending the world's worst selloff this year, amid waning investor confidence in the government's efforts to revive the economy and stabilise financial markets.
The Shanghai gauge slid 5.3 per cent at the close, extending last week's 10 per cent plunge. China factory gate deflation extended into a 46th month in December, data over the weekend showed, while there was little evidence of the state-backed fund buying that helped shore up equities on several days last week.
Shares declined even after the yuan gained on a stable fixing from the central bank.
The stock market's extreme market swings this year and a sliding yuan have revived concern over the Communist Party's ability to manage an economy set to grow at the weakest pace since 1990.
Policy makers removed new market circuit breakers from Friday after blaming them for exacerbating declines that wiped out at least US$1 trillion this year. China's producer price index slumped 5.9 per cent in December from a year earlier.
"Pessimism is the dominant sentiment," said William Wong, head of sales trading at Shenwan Hongyuan Group Co in Hong Kong.
"The PPI figure confirms the economy is mired in a slump. Market conditions will remain challenging given weak growth, volatility in external markets and the yuan's depreciation pressure."
China's economic outlook has been dimmed by market volatility and slowing exports, which declined 6.8 per cent in November from a year earlier.
The official purchasing managers index signaled weakness for a fifth straight month in December, keeping the manufacturing gauge near a three-year low.
While the government helped boost stocks at least twice last week, according to people familiar with the matter, equities extended declines into the close on Monday.
PetroChina Co, long suspected to be a target of state-backed fund buying because of its large weighting in the Shanghai Composite, sank 3.6 per cent.
"Sentiment is very poor," said Castor Pang, head of research at Core Pacific Yamaichi Hong Kong.
"I don't see any clear signs of state buying in the mainland market. Policy makers have to be cautious in using intervention as they can't rescue the market all the time."
The Shanghai Composite has tumbled 16 per cent this year, the most among 93 global benchmark indexes tracked by Bloomberg, and more than twice the pace of the MSCI All-Country World Index.
The CSI 300 Index slid 5 per cent on Monday, while the Hang Seng Index dropped below the 20,000 level for the first time since 2013. The Hang Seng China Enterprises Index plunged 3.8 per cent to trade at its cheapest levels in 14 years.
The offshore yuan rose 0.37 per cent to 6.6584 a dollar in Hong Kong, after declining as much as 0.37 per cent. It sank as low as 6.7618 last week, within 0.4 per cent of a record 6.7850 seen in September 2010.