SoftBank's Chinese corporate venturing unit has led a $20m series B round for the online education company as it seeks to expand.

China-based online education company XueXiBao has received $20m in a series B round led by SoftBank China Venture Capital, a subsidiary of telecommunications company SoftBank, according to China Money Network.

GSR Ventures also participated in the round, having previously invested in XueXiBao’s series A round, which raised an undisclosed amount.

XueXiBao operates a database with test preparations for middle and high school students in China that can be accessed via mobile apps. It will use the series B funding to…