Vice President Mike Pence said America would honor a controversial refugee deal with Australia, under which the USA would resettle up to 1,250 asylum seekers, a deal Donald Trump had described as "dumb".
President Donald Trump has contested the deal.
The White House has already stressed that any refugees coming to America will be subject to "extreme vetting" before they are given asylum.
"We don't want to get too deep in business-to-business issues, but when it comes to economic development and reforms and regulations in Indonesia, we encouraged it", the adviser told reporters traveling with Pence on his 10-day trip to Asia.
"The question before all of you is where are the opportunities and where are the barriers, in what ways could the United States work with the leadership here in Australia to create an even better environment for investment and trade.", Mr Pence said.
Pence told reporters on Saturday that he had reassured Australian Prime Minister Malcolm Turnbull that the US will honor the agreement struck by the Obama administration even if the USA doesn't "admire" the deal.
"It speaks volumes for the commitment, the integrity of President Trump", he said.
Pence's comments imply that the Trump administration has added new vetting efforts to the Obama-era agreement.
After taking office, Trump was infuriated upon learning that former President Barack Obama had agreed to a refugee resettlement deal with Australia. Turnbull and Pence both spoke of the two countries' long history of milita.
Pence and Turnbull said they were aligned in their opinion that China should use its leverage with North Korea to de-escalate the nuclear threat from Pyongyang.
It comes as there are heightened tensions in the region over North Korea's nuclear and ballistic missile program.
Both the US and Australia have pressured China to take more responsibility in influencing North Korea to abandon its nuclear program.
"If China is unable to deal with North Korea, the United States and our allies will".
Asylum-seeker advocates welcomed the USA commitment, although they remained concerned that "extreme vetting" could see fewer than 1,250 resettled in the United States.
In a tweet posted February 2, Pres. Trump made his feelings about the agreement quite clear, saying: "Do you believe it?"
Roads were closed throughout Sydney for the visit, which included a trip to Sydney's Australian Museum with Foreign Minister Julie Bishop, and meetings with business leaders, Governor-General Peter Cosgrove and opposition leader Bill Shorten.
On the second full day of his whirlwind visit Mr Pence, his wife Karen and daughters Charlotte and Audrey will visit the Sydney Opera House, Taronga Zoo and take a harbour cruise with NSW Premier Gladys Berejiklian.
The President reportedly blasted Mr Turnbull in a testy phone exchange for cutting the deal with a lame-duck president and expecting him to honour it.