Singapore shares fell for a third session on Monday after country's non-oil exports from significantly slowed in November.
Non-oil domestic exports rose 9.1 percent in November, data from the trade agency International Enterprise (IE) Singapore showed, slowing from a revised 20.5 percent surge the month before.
Asian shares edged up on Monday, with sentiment boosted by expectations U.S. lawmakers will pass a long-awaited tax bill.
MSCI's broadest index of Asia-Pacific shares outside Japan gained 0.2 percent.
At 0510 GMT, the Straits Times Index lost 0.28 percent or 10 points to 3,407. It ended 0.55 percent lower on Friday, taking the year-to-date performance to about 19 percent.
Shares of United Overseas Bank were down 0.2 percent, Oversea-Chinese Banking fell 0.8 percent while DBS Group Holdings rose 0.9 percent.
Shares in Clearbridge Health opened unchanged compared to its IPO price of S$0.28 in Monday's trading debut.
But real estate services provider Rowsley jumped 15 percent after it entered into an agreement to acquire Thomson Medical and a 70.36 percent stake in Bursa Malaysia-listed healthcare firm TMCLS for S$1.6 billion.
Noble Group shares jumped 17 percent after its shareholders approved the company's pending sale of its North American oil business to Vitol U.S. Holdings about $580 million on Friday.
About 626 million shares worth S$441 million changed hands, with gainers outnumbering losers 169 to 164.