Nigeria, Sept. 28 -- Nigeria's pension regulator has rolled out new guidelines that expand the range of permissible investments for retirement savings while tightening risk controls, including a cap that limits exposure to a single corporate entity at 25 percent.

The National Pension Commission (PenCom) said the revised rules introduce fresh instruments such as reverse repos, gold receipts, securities lending, commodity-backed assets and agriculture investment funds.

"Single Entity Exposure Cap - across the six funds within the Multi-Fund Structure, PFAs must not hold more than 25 per cent of instruments issued by a single corporate entity," it said Thursday.

Pension funds may also take part in private placements by registered corporat...