Indonesia reported a $4.47 billion trade surplus in March, data from the statistics bureau showed on Monday, larger than a forecast surplus of $1.13 billion in a Reuters poll as imports fell more than expected.

Japan's factory activity contracted but approached the break-even point in April, a business survey showed on Tuesday, suggesting the key sector is finally picking up after months of sluggishness.

Asian shares extended gains on Tuesday, taking cues from Wall Street as focus shifts to earnings results from U.S. tech giants in the week, while a still strong dollar pressured the Japanese yen to fresh 34-year lows.

Oil prices steadied in Asian trading on Tuesday, after falling in the previous session, as investors continued to assess the risk from geopolitical concerns in the Middle East.

A firm U.S. dollar had the yen locked near a fresh 34-year low on Tuesday, keeping investors on heightened intervention watch as they looked ahead to key U.S. inflation report and the Bank of Japan's rate decision this week.

Indonesia's trade surplus is estimated to have widened in March as imports were seen easing from a seasonally high demand in the prior month, a Reuters poll showed.