South Korean technology giant Samsung Electronics forecast Tuesday a massive 19-fold jump in second-quarter operating profit from a year earlier, buoyed by sustained AI-driven demand for memory chips. The world's largest memory chipmaker estimated April-June operating profit at 89.4 trillion won ($58.4 billion) -- up 1,810 percent on-year, a company statement said. Frenzied global demand for advanced memory chips used in data centres for artificial intelligence has already helped South Korean semiconductor giants post record profits this year.