Islamabad: Pakistan, the world's fifth-biggest rice exporter, set a minimum export price for some of the premium quality grains to boost local availability amid a global shortage of the commodity.

Companies can export super basmati at not less than $1,500 a metric tonne on a free-on-board basis, the commerce ministry said on its website.

The ministry set the benchmark export price for ordinary basmati rice at $1,300 a tonne, $1,000 a tonne for the IRRI-9 variety and $750 for IRRI-6.

Pakistan joins India, Vietnam, China and Egypt in restricting rice exports after prices threatened food security in some nations.