Shares in Malaysia Airlines, the company hit by two air disasters this year, have been suspended ahead of a significant announcement.

The suspension of share trading comes ahead of the announcement of the airline's plans for restructuring, which could include job cuts and a change in top management.

Khazanah Nasional, which owns 70 per cent of the carrier, will hold a press conference later on Friday.

Major changes at Malaysia Airlines were foreshadowed earlier this month following the twin disasters of flights MH370 and MH17.

Flight MH370 disappeared on March 8, possibly over the Southern Ocean, and Flight MH17 was shot down on July 17 while flying over rebel-held eastern Ukraine.

A total of 537 passengers were killed in the two aviation tragedies.

Malaysia Airlines has reported a net loss of $104 million in its second quarter and said its earnings in the second half would be hit by lower passenger bookings after the two disasters this year.

The airline is expected to be de-listed and privatised.

Khazanah Nasional has previously said it would purchase all minority shares in the flag carrier and finalise a restructuring plan by the end of August.