Mr Barr is leading a delegation on a week and a half long trip to Singapore and London, which is expected to cost territory taxpayers about $47,000.

As part of his itinerary, Mr Barr will meet with representatives from two of the world's largest financial institutions, Norges Bank and Barclays Bank, as he explores options to refinance some of the territory's debts, including the remainder of the Commonwealth loan for the Mr Fluffy asbestos clean up.

The federal government this week rejected Mr Barr's request to waive the remaining $900 million of debt, meaning the territory must look at alternatives to reduce a hefty interest bill paid on the loan each year.

The ACT government negotiated a fixed 2.7 per cent rate on the loan in 2014. Following the Reserve Bank of Australia's decision to slash the official rate to an historic low of one per cent, the government is confident it can secure a better deal.

The delegation will also hold talks with officials from Singapore Botanic Gardens during its trip to one of Asia's financial capitals.

In London, Mr Barr will be joined by National Museum of Australia director Matthew Trinca for a meeting with representatives from the British Museum.

A meeting has also been scheduled with London's deputy lord mayor, Rajesh Argawal, and the city's so-called "night czar" to discuss ways to boost the ACT's night-time economy.

The delegation will also sit down with representatives from Qatar Airways and and Singapore Airlines, with the government keen to encourage more overseas flights into Canberra.

Mr Barr, who is also the territory's Minister for Trade, Tourism and Investment, last year racked up close to $120,000 on interstate and overseas travel, including trips to Singapore and the United States.

He was accompanied by one or two staffers on each of those trips.