BROWN and Hurley has been bringing its Kyogle-based trucking business to the Primex agricultural show for three decades.
The company, founded by Alan Brown and Jack Hurley in 1948, is one of a handful of local companies that can say they were at the first Casino primary industry exhibition 30 years ago.
For Brown and Hurley salesman Mick Clark, Primex is the perfect place to put your company's products on display.
"The customers come to us and in three days we see as many customers as we'd see in three weeks," he said.
"There's obviously trucks there that people might never have seen before and they might not even be thinking about Kenworth (trucks) but then they walk past and say 'that's exactly what we're looking for'."
This year is the exhibition's 30th anniversary.
Primex director Bruce Wright said there were 400 stalls and 40,000 people expected to walk through the gates, bringing an estimated $10 million to the local economy.
"It continues to grow," he said.
"We're expecting a huge crowd and whether it goes over 40,000 and becomes 50,000 we'll just have to wait and see but the conditions are fantastic."
Mr Wright said the theme for the event was the future of farming.
"There's a huge amount of optimism," he said.
"Through the trade agreements and everything else, there's no reason why the Northern Rivers can't be a really strong part of that and take advantage of those trade agreements."
It's a topic Deputy Prime Minister and Minister for Regional Development Warren Truss discussed when he officially opened the event.
"The theme of this particular event is associated with the next generation of farmers and that's an important focus," he said.
"We must ensure we have a strong agricultural sector in our country that actually encourages young people to want to take up a career in this industry."