But shares in TSMC, the world's largest contract chipmaker have slipped, after US President Donald Trump said he would announce a tariff rate on imported semiconductors over the next week. He did add however, that there would be flexibility on some companies in the sector.

China's exports likely picked up pace in March, as factories rushed out shipments ahead of U.S. President Donald Trump's sweeping tariffs this month, though the broadening trade war with the United States has darkened the economic outlook.