A company part owned by Leighton is part of a joint venture awarded a $US1.7 billion highway project in Qatar.

Iluka Resources faces a class action from shareholders over a sales downgrade in 2012 that caused a massive plunge in its share price.

Macquarie Group has upgraded its full year profit guidance as improving market conditions favour its many financial market businesses.

Strong sales growth from its Australian stores is driving Kathmandu's profits higher, but a slide in the Australian dollar hasn't helped the company.