https://www.reuters.com/article/us-samsung-elec-results/samsung-electronics-bets-on-better-second-half-after-first-quarter-profit-slumps-idUSKCN1S52C8 >South Korea's Samsung Electronics Co Ltd flagged improved second-half results on expectations of a pick up in memory chip and smartphone sales, after posting its weakest profit in more than two years in the first quarter.