SYDNEY (Reuters) -China's Xiaomi Corp ( XIACF ) is raising up to $5.27 billion in a top-up placement on Monday, according to a term sheet seen by Reuters.

The shares are being sold in a HK$52.80 to HK$54.60 price range, the term sheet said.

The smartphone maker, which began manufacturing electric vehicles (EVs) last year, is selling 750 million Class B shares and the price range represents a 4.2-7.4% discount to the company's HK$57 closing price on Monday.

The money raised is earmarked for business expansion, investment in research and technology development and general corporate purposes, the term sheet said.

Xiaomi ( XIACF ) did not respond immediately to a request for comment.

EV manufacturer BYD this month raised $5.59 billion in Hong Kong's largest share sale in four years.