CIMIC, Australia's biggest construction company, has put its controversial supply chain finance scheme "under review" for the first time after delivering an 8 per cent drop in first-quarter net profit to $166 million.

The move comes after Greensill Capital, which supplies CIMIC with supply chain financing services, said last week it had given "formal notice" to clients that it would stop doing business with companies that used the services to push out bill payments beyond the standard 30 days.