By Se Young Lee SEOUL (Reuters) – SK Hynix Inc., the world’s second-biggest memory chipmaker, on Thursday said shipment growth would slow in the third quarter as it posted its first drop in quarterly profit in two years, casting doubt on medium-term revenue growth. A change in product mix and a transition to more complex production technology will crimp third-quarter shipments growth for the key DRAM business, SK Hynix President Kim Joon-ho told analysts during a conference call. “There are worries that DRAM shipments growth will be increasingly limited in the latter half of the year, given the technology migration issues, which would lead to slower top-line growth,” LIG Investment & Securities analyst Ryan Hong said. SK Hynix, which competes with market leader Samsung Electronics Co Ltd, Japan’s Toshiba Corp 6502.T and U.S.-based Micron Technology Inc, posted operating profit of 1.1 trillion won ($1.07 billion) for the April-June period.