Clifford Chance is advising Asian buyout firm MBK Partners Inc. alongside TPG Capital on a $1.2 billion acquisition of the telecommunications business of Hong Kong conglomerate The Wharf Ltd.—one of the largest telecom deals in Hong Kong in recent years.

The private equity duo is buying Wharf T&T, one of the largest fixed-line operators for businesses in Hong Kong, with a client base of about 50,000 companies.