SINGAPORE: Singapore's Deputy Prime Minister Heng Swee Keat will be the first Asia-Pacific leader to speak at the WELT Economic Summit when he delivers a keynote speech at the forum on Monday (Jan 27). Mr Heng is making a working visit to Berlin from Jan 26 to Jan 31, the Prime Minister's Office (PMO) said on Sunday. The WELT Economic Summit, now in its 16th edition, is a forum for government and business leaders to discuss major economic and political issues. Other attendees include German