Warburg Pincus, a leading global private equity firm, announced on Monday the closure of a key investment fund.

The fund, Warburg Pincus Private Equity XI, had reached $11.2 billion.

"China continues to be an attractive market for Warburg Pincus with investment opportunities in growth companies in our key sectors of expertise, such as consumer and retail, healthcare and TMT," Sun Qiang, managing director and head of North Asia for Warburg Pincus, said.

The closure of WP XI follows a very active 2012 in which the firm invested over $2.3 billion in 28 new companies and made follow-on investments into several existing companies.

Warburg Pincus has been active in China since 1994. To date the firm has invested over $4 billion in 80 companies. The current portfolio includes more than 40 companies, including China Auto Rental, Kidswant, Asian American Gas, Red Star Macalline, Lepu Medical and Franshion Properties.