Apollo Global Management has secured an investment allocation of $1.5 billion from Japan's Sumitomo Mitsui Trust Holdings to a range of funds covering private equity and real estate to infrastructure, according to a report by Private Equity Insights.

The allocation is part of total third-party capital investment of more than $5 billion from Asian institutional investors in a $10-billion proprietary portfolio from the Apollo group.

Japan is attracting increasing attention from global private equity firms looking to tap the huge potential of the country's growing private assets market.