The market value of Chinese smartphone manufacturer Xiaomi has been estimated at 45 billion U.S. dollars, following the company's 1 billion US dollar fundraising last week.

中国智能手机生产商小米公司上周获得10亿美元集资，其市值据估计大约是450亿美元。

That's more than a four-fold increase in valuation since its previous round of fundraising in August of last year.

Lei Jun, founder and CEO of Xiaomi, says the company will unveil a new heavyweight flagship product next month.

Xiaomi became the world's third-largest vendor behind Samsung and Apple, shipping 18 million smartphones in the third quarter. That's an increase of 18 percent from the previous quarter.

It expects to sell 65 million phones for the whole year.