South Korean tech firm Samsung Electronics on Tuesday reported close to a five-fold jump in net income attributable to shareholders in the first quarter. Profit after tax, less dividends payable to holders of preference shares, climbed to 6.62 trillion Korean won (around $4.8 billion) from 1.40 trillion won in the prior year. Operating income for the first quarter also climbed to 6.61 trillion won from 0.64 trillion won in the previous year, as the Memory business returned to profit by addressing demand for high value-added products. The Mobile eXperience Business posted higher earnings and th…