Australia and the Netherlands "will not rest" until they feel justice has been served over the downing of Malaysian Airlines flight MH17, the Dutch prime minister says.
Mark Rutte met Prime Minister Scott Morrison in Sydney on Wednesday with the 2014 MH17 disaster topping the agenda alongside talks on two-way trade.
The international team investigating the downing of the flight announced in June murder charges against three Russians and one Ukrainian for their alleged roles in the attack, which killed all 298 people on board including 38 Australians.
Mr Rutte said it could take many years to bring those responsible to justice but Australia, the Netherlands and their partners in the joint investigation team were "absolutely adamant" they would get the job done.
"There is no guarantee at this moment that people can get jailed if that is the conclusion out of the court case," he told reporters.
"But I can guarantee you one thing: that we will not rest before that court case is closed in a way in which we all feel a sense that justice has been done."
Mr Morrison said they would stand "shoulder to shoulder" to pursue justice "for as long as it takes".
"That is the very least we owe to those who were murdered on that night and all of their families who have survived and so today we have reaffirmed our commitment to that task," he said.
Mr Rutte was on Wednesday appointed as an honorary companion of the order of Australia, in recognition of his leadership after the downing of MH17 and his service to the Australia-Netherlands relationship.