Australian ambassador to Belgium and Luxembourg, the European Union and NATO, Justin Brown, Australian consul-general to Shenyang, China, Broughton Robertson, and Australian consul-general and senior trade and investment commissioner to Canada, Grayson Perry were seeing the Riverina's agricultural production, research and innovation. Their visit included Charles Sturt University, Bomen and Wagga's health precinct.

Mr Brown said he could see opportunities for producers both in Europe and in a post-Brexit Britain.

"Australia's got an excellent reputation for sort of high-quality, sustainable green produce, if you like. It's very well-known in Europe," he said.

"Europeans travel to Australia, they see our product first hand and they want to have it in their market.

"We launched trade negotiations with the European Union last year.

"It's big opportunity to improve our exports in the European market. It's a $500 million market, very wealthy, so even small improvements in our access to our markets can be a very big payoff.

"It's going to take a little time to get this over the line, but in a big market like this - a high-price, high-premium market - even small levels of access can be very beneficial for producers. At the moment, Europeans have quite high levels of protection from many agricultural products, particularly for red meat, for some grain and some horticultural products.

"This trade agreement is an opportunity to get some of those barriers eliminated or significantly reduced and get some access for our producers into that market."

Mr Robertson said China's Shenyang region, where he is posted, had a population of 100 million people.

"They are already buying a lot of wine and citrus and meat from the area, as well as investing," he said.

Dr Perry welcomed the opportunity to see not only the region's agricultural products, but also to look at how industries were being developed and run.