Tech giant Samsung Electronics Co Ltd may be due for another profit drop in 2016, as slowing demand for consumer electronics saps momentum for the less-glamorous components businesses that offset last year's smartphone struggles. The world's top maker of memory chips and smartphones is expected to guide on Friday its second straight quarter of annual profit growth for October-December. Analysts expect the South Korean firm's overall 2015 earnings to have rebounded moderately from 2014, when profit fell for the first time in three years. But slower growth in China and the ...