Two Chinese property firms are set to raise a combined $2bn (€1.5bn) on the Hong Kong stock exchange, after increasing the value of their initial public offerings despite analysts doubts over the longevity of the real estate boom in the country as banks tighten mortgage terms.

Sino-Ocean increased the value of its Hong Kong initial public offering to $1bn after adding another property project in Tianjin. Goldman Sachs and Morgan Stanley are advising on the deal.