Toshiba Corp. on Monday posted a group net profit of 4.0 billion yen for the April-June period, improving from a group net loss of 8.9 billion yen the previous year thanks to brisk sales in flash-memory products.

It is the first time Toshiba's net profit in the first quarter had been in the black since the company started disclosing quarterly financial results in fiscal 2001.

Toshiba said it reported an operating profit of 20.8 billion yen, recovering from 1.9 billion yen of operating loss the year before, on sales of 1.45 trillion yen, up 11.9 percent. The company's pretax profit jumped to 21.9 billion yen from a pretax loss of 3.6 billion yen in the same period last year.