While 35 jobs created under the new EBA are under direct threat, the majority of the 800 employees at the plant are likely to receive a pay cut as well as the loss of profit share bonuses that saw around 500 employees receive an average bonus of $4500 in 2014.
Teys general manager corporate affairs Tom Maguire says the Australasian Meat Industry Employees Union was able to "manipulate the industrial relations process."
"The Federal Court basically said that the decision by the full bench of the Fair Work Commission (FWC) was wrong but they are legally entitled to make wrong decisions.
"This highlights the brokenness of the current IR system."
Maguire says that with higher unemployment figures released yesterday, it was farcical that the current system works against Australian manufacturers and local jobs.
"Our employees worked with us to create a productivity-based way forward, yet the union, which was terrified of losing influence and power, opposed us all the way to the Federal Court."
An independent economic report estimated that the Teys Beenleigh plant with flow-on effects contributes more than $360 million in GDP to the Brisbane region and underpins more than 1,800 full time equivalent jobs.
However the plant had returned only 2.8 per cent on its $150M Asset base over nine years, decreasing to a one per cent return over the four years to 2012.
Maguire says the company competes in a global market, where the local production cost of a beast is double that in the US and more than double that in Brazil.
"Australia urgently needs more workplace flexibility and an overhaul of the FWC, to support the relatively few manufacturers that remain in Australia," he says.
"The Prime Minister says 'jobs, jobs, jobs' are his priority, so how about we get serious and have an IR system that supports jobs."
Teys Australia is considering the long term viability of the Beenleigh plant.
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