Tensions rose sharply in May after the Trump administration accused China of reneging on promises it had made during months of talks.
The 1.8% annual expansion fell far short of the long-term average of 3.5% and was the weakest since the global financial crisis.
The economic growth across the Southeast Asia region is expected to decelerate, moderating to 4.8% in 2019.
The report by the National Association for Business Economics is based on responses by 53 economists.
Facing an job crunch at home, many young South Koreans are now signing up for government-sponsored programmes for jobs abroad.
The trade talk became more confusing after US and China appeared at a deadlock over trade negotiations on Sunday.
The divergence is only getting larger as surging iron ore prices lifted exports to all-time highs in the March quarter.
China's stock market has been suffering losses amid escalating trade friction with the United States.
BOJ kept intact a pledge to guide short-term interest rates at minus 0.1 percent and long-term rates around zero percent via aggressive bond buying.
Hike comes in the midst of two days of talks between top US and Chinese negotiators to try ending end a 10-month trade war between them.
The MAS discloses less information than most other major central banks about how it comes to its decisions.
China was considering cancelling this week's trade talks in Washington in light of Trump's comments, which took Chinese officials by surprise
Job growth surged in April and the unemployment rate dropped to the lowest in nearly half a century according to statistical reports.
Exxon sued Cuba's state-owned Cuba-Petroleo and CIMEX Corp seeking $280 million in thee aspects.
US worker productivity increased at its fastest pace in more than four years in the first quarter,depressing labour costs