SoftBank Group Corp. said Wednesday that it wants to list its Japanese telecoms unit this year, a move toward completing its transformation from a domestic telecoms upstart into one of the world's biggest technology investors.

SoftBank hopes to list shares of its core Japanese telecoms unit, SoftBank Corp, this year, Son told reporters, adding that the proceeds "will be used to strengthen our financial balance and for group growth."

The company flagged last month that it was considering listing the business, seeking to raise a reported ¥2 trillion ($18 billion).