Andrew Robb has become the latest former politician to give up a lucrative position with a Chinese government-linked company, reports say.

Mr Robb became a consultant with Darwin Port leaseholder Landbridge soon after quitting politics in 2016.

The former trade minister confirmed to The Age and The Sydney Morning Herald he had left the company because, ‘at this stage, Landbridge has no other projects relevant for me to assist’.

‘I had been commissioned by Landbridge for well over a year to prepare a comprehensive report on ways that Australia’s world class health industry could assist with a major improvement of China’s public health system,’ Mr Robb wrote in answer to questions.

Two others, former foreign minister Bob Carr and former Victorian premier John Brumby, have also left lucrative roles.

Mr Carr left the Australia-China Relations Institute, a think tank set up by businessmen with strong ties to the Chinese Communist Party while Mr Brumby quit the Australian board of Chinese telco Huawei.

The moves come as the Foreign Influence Transparency Scheme requires people to register if they are lobbying for foreign interests.