Senior Labor Minister Tom Koutsantonis has been appointed South Australian Treasurer in a reshuffle of the Malinauskas government cabinet.

Mr Koutsantonis, who previously held the position from 2014 to 2018, has been the Minister for Transport, Infrastructure, Energy and Mining since Labor came to office in 2022.

He has lost the infrastructure and transport portfolio, which has been picked up by former Recreation, Sport and Racing Minister Emily Bourke.

Mr Koutsantonis was sworn in at a ceremony at Government House this morning alongside new Deputy Premier Kyam Maher.

The reshuffle was prompted by the surprise resignations of former Deputy Premier Susan Close and Treasurer Stephen Mullighan from cabinet on Thursday.

New cabinet minister Lucy Hood, the MP for Adelaide, has been given

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