13/02/2016 3:33 PM AEDT | Updated 15/07/2016 12:51 PM AEST

Malcolm Turnbull Unveils New Ministry, Says He's 'Delighted'

FILE - In this Jan. 19, 2016 file photo, Australian Prime Minister Malcolm Turnbull smiles as he meets with President Barack Obama in the Oval Office of the White House in Washington. Turnbull gave a personal assurance on Friday, Jan. 29, 2016 that his government would legalize gay marriage if a majority of Australians choose marriage equality in a popular vote.(AP Photo/Carolyn Kaster, File)

Prime Minister Malcolm Turnbull has announced his new-look ministry, with Steve Ciobo and Darren Chester among the big winners in the reshuffle.

Speaking on Saturday, Turnbull unveiled the ministerial line-up likely to take the Coalition to the next Federal election.

Among the around 17 changes, Ciobo takes Andrew Robb's investment and trade portfolio and Chester steps into the infrastructure and transport roles vacated by retiring National's leader Warren Truss.

"Darren will make a formidable contribution in this portfolio. He has been one of the younger stars in the Parliament and recognised as such for a long time," Turnbull told reporters in Sydney.

Robb will become a special envoy for trade until he retires at this year’s election.

Barnaby Joyce takes the agriculture portfolio with him into his new role as Deputy Prime Minister. Fiona Nash, named as the new deputy leader of the National Party, will add Regional Development and Regional Communications to her role.

Finance Minister Mathias Cormann would take on the special Minister of State position vacated by Mal Brough today, Turnbull said.

He said Senator Scott Ryan would be sworn in as the Minister for Vocational Education and Skills, replacing Luke Hartsuyker.

"He is not featuring in the National Party's ministerial line up on this occasion," Turnbull said.

The shake-up follows the retirements of Truss and Trade Minister Robb, as well as the resignations this week of former Cities Minister Jamie Briggs and Human Services Minister Stuart Robert.

Other changes announced by the Prime Minister included swearing in of Alan Tudge as Minister for Human Services, Dan Tehan as Minister for Defence Materiale and the Minister for Veterans Services, as well as Senator Concetta Fierravanti-Wells as Minister for International Development and the Pacific. Queensland Senator Matt Canavan would be sworn in as the Minister for Northern Australia, Turnbull said.

The PM also announced a number of changes to the assistant minister and parliamentary secretary ranks.

Keith Pitt will serve as the Assistant Minister to the Deputy PM, Craig Laundy will become the Assistant Minister for Multicultural Affairs, Jane Prentice will be the Assistant Minister for Disability Services and Angus Taylor will serve as the Assistant Minister to the PM.

Peter Hendy will serve as Assistant Minister in the Finance portfolio, Senator James McGrath will take on additional duties supporting Peter Dutton as Assistant Minister for Immigration.

Canberra's Government House will host the swearing in ceremony for the new ministry on Thursday.

Polling, News, Analysis
All the latest from the 2020 presidential election from HuffPost reporters in the US and around the world