Trader works at DBS Group headquarters in Singapore. Reuters

Singapore equities edged higher on Tuesday, led by gains in commodity trader Noble Groupand lender DBS Group Holdings.

Asian shares slipped after Republicans effort to dismantle and replace the Affordable Care Act, commonly known as Obamacare, faced a fresh setback on Monday.

The Straits Times Index gained 0.24 percent or 8 points to 3,306. It ended 0.33 percent higher on Monday, taking the year-to-date gains to 15 percent.

Gainers included commodity trader Noble Group climbing 8 percent, lender DBS Group Holdings gained 1.6 percent while Global Logistic Properties rose 0.6 percent.

Among the losers, Singapore Telecommunications fell 0.3 percent and Singapore Press Holdings slipped 2.6 percent.

Keppel Infrastructure Trust lost 2.5 percent after its profit attributable to unitholders fell 4.9 percent in the second quarter.

About 2.7 billion shares worth S$1.3 billion changed hands, with gainers outnumbering losers 244 to 199.