中国智能手机制造商小米价值45美元ionThe company raised a fresh $1.1 billion from investors and is currently the No. 3 smartphone company in the world behind Samsung and Apple.

China's Xiaomi Inc [XTC.UL], one of the world's fastest-growing smartphone makers, has raised $1.1 billion in a round of funding that cements its status as one of the world's most valuable private technology companies at a valuation of $45 billion.

Investors include private equity funds All-Stars Investment, DST Global, Hopu Investment Management, and Yunfeng Capital, as well as Singapore sovereign wealth fund GIC, Chief Executive Lei Jun said Monday on Weibo, confirming earlier media reports.

The deal is one of the first high-profile scores for All-Stars, a recently established fund headed by former Morgan Stanley tech analyst Richard Ji. It also strengthens ties between Lei and fellow tech magnate Jack Ma, the Alibaba Group Holding Ltd executive chairman who invests privately through his Yunfeng Capital fund.

Industry sales data from recent quarters show Xiaomi has risen in just three years to become the world's No. 3 smartphone maker - behind only Samsung Electronics Co Ltd and Apple Inc - and the latest round of investment enforces its standing as one of the world's most valuable private companies.

At $45 billion, Xiaomi is now worth nearly three times the market capitalization of Lenovo Group Ltd, the world's No. 1 PC maker, and more than quadruple the $10 billion valuation it garnered during its last financing round in 2013.

Xiaomi's skyrocketing valuation reflects investors' belief that it will grow into a global powerhouse despite signs it is encountering intellectual property challenges outside China. This month sales in India were temporarily halted after Swedish telecommunciations firm Ericsson filed a patent complaint.

Xiaomi brands itself as an Internet company that eschews traditional marketing and sells hardware at low prices as a distribution channel for its real money maker - software and services.

It has been investing heavily in other manufacturers with the aim of building an ecosystem of Internet-connected devices and appliances to extend its reach beyond smartphones.

Other Xiaomi backers include Singapore sovereign wealth fund Temasek Holdings Pte, Qiming Venture Partners, Morningside Venture Capital and DST, the Russian tech fund that has also taken pre-IPO stakes in Alibaba Group Holding Ltd, Indian e-commerce giant Flipkart and Facebook Inc.

(Reporting by Gerry Shih; Editing by Sunil Nair)