Chinese online education startup Huohua announced on Monday that it has raised $150 million its series E-3 round of fundraising, which marked its third round of financing within five months.

The new round was led by Trustbridge Partners and Lighthouse Capital continued to be the financial advisor.

As of now, the firm has raised $400 million in its series E round of financing, after raising $150 million in August and $100 million in October.

Huohua mainly offers online mathematic thinking lessons to children and expanded its business to online Chinese livestreaming classes and AI early English tutoring over the past two years.

The company disclosed that it has started to go global with the number of overseas students paying for full-price classes hitting several tens of thousands.