The National Asset Management Agency (NAMA) is set to complete it asset sales by 2018, according to a presentation delivered to senior investors by its chief executive, Brendan McDonagh.

The agency has generated more than €1bn in cash receipts so far in 2015. It still has €11.1bn of assets to offload.

According to the Irish Times Mr McDonagh outlined six challenges that NAMA faces as it finishes its asset selling operations: keeping investors interested in putting money into Ireland's recovering property industry, competition from off-market deals by private equity funds, competition from other European property markets, staff retention, economic risks and development risks.

Of the €11.1 billion remaining in the agency's Irish portfolio close to €7.7bn is located in Dublin, €917m in Cork, over €500m in Galway, and €498m in Kildare.

NAMA was originally intended to be wound-up in 2020.