Mainland shares down
China's Shanghai Composite index closed down 0.4 percent on Wednesday, as concerns about the mainland's credit supply hurt sentiment.
Premier Li Keqiang said on Tuesday that China's money supply grew 12.8 percent in August, slower than July's 13.5 percent growth and below analysts' expectations for a 13.5 percent growth, Xinhua News Agency reported.
Real estate developers Vanke and Poly Real Estate tumbled 2 percent, respectively. The latter reported that its contract sales slipped almost 1 percent for the month of August.
"It's not a secret the economy isn't firing as well as it used to, but the government certainly doesn't seem to be in any rush to stimulate," wrote IG's market strategist Stan Shamu in a note. "There is still plenty of data due out of China this week and perhaps this warrants some caution."
Hong Kong's Hang Seng index suffered steep losses to hit a one-week low after traders returned from a public holiday.
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Taipei loses 0.8%
Taiwan's key TAIEX index ended Wednesday at a three-week low, failing to get a lift from Apple's latest releases. However, the bourse managed to trim losses as tech shares recouped losses.
Apple's assembler Pegatron slumped 2 percent while supplier Hon Hai Precision dropped 1 percent.
Sydney skids 0.6%
Australia's benchmark S&P ASX 200 plunged to a three-and-half-week low after suffering its biggest one-day loss in a month, following a sharp reversal in a study of Australian consumer sentiment.
The survey of 1,200 people by the Melbourne Institute and Westpac showed the index fell a seasonally adjusted 4.6 percent in September, from August when it jumped 3.8 percent.
Deteriorating iron ore prices weighed on mining majors; Fortescue Metals plummeted nearly 3 percent while Whitehaven Coal lost 1.8 percent.
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