Labor promises persistence on China trade reopening

Australia hopes to put a years-long trade dispute with China in the rear-view mirror as the trade minister prepares to head to Beijing. 

Don Farrell is travelling to China on Thursday and will meet his counterpart Wang Wentao after accepting his invitation during a virtual conference in February.

Senator Farrell said the trip was the next step in stabilising Canberra's relationship with Beijing. 

"We need to show we're fair dinkum about resolving these issues. How do we best do that? Well, me turning up there and accepting his invitation," he told AAP.

"The problems didn't occur overnight, they're not going to be resolved overnight. But from my point of view, persistence and perseverance are the real keys."

Senator Farrell will co-chair the joint ministerial economic commission with Mr Wang. 

The commission was last convened in 2017.

Senator Farrell said progress had been made, with almost daily coal shipments received in China, as well as orders for copper and cotton resuming.

But he said while there are signs of movement with Australian crayfish, orders are yet to flow. 

"So there's a range of issues, and they're not all in the same category," Senator Farrell said.

"Some relate to tariffs, 220 per cent punitive tariffs on wine. Meat and crayfish tend to be regulatory things, biosecurity issues.

"I'd like to have discussions that show a way through all of these outstanding issues so we can look forward to a resumption of trade."

Opposition foreign affairs spokesman Simon Birmingham said Beijing should be "backing down on the type of economic coercion they tried to apply".

"It's time to start seeing some outcomes, in particular to see the tariffs on barley, the tariffs on wine removed, so that those unfair, unjustified punitive sanctions on Australian industry no longer apply," he told Sky News.

Senator Farrell is expected to invite his counterpart to visit Australia as diplomatic relationships continue to thaw. 

Australia has paused its World Trade Organisation dispute against China for imposing tariffs on barley imports, in return for Beijing agreeing to expedite its review of the measure.

Senator Farrell said while he believed the ruling would have been in favour of Australia, the concessions could lead to a quicker resolution than if the dispute had continued.

"That wouldn't have been the end of it. There still would have been another 18 months to two years of process," he said of the dispute.

"My ambition is to show goodwill and hope that is then reciprocated."

Australia can resume the dispute should China fail to budge. 

Senator Farrell will also raise the case of detained Australian journalist Cheng Lei, who has spent 1000 days behind bars on espionage charges the Australian government has rejected.

Her sentencing has been delayed for a further three months, and details of the charges against her remain a secret.

Australian writer Yang Hengjun also remains detained in China on secret charges. 

"We believe these cases should be resolved and these people returned to their families," Senator Farrell said.