Russia's mystery decision to temporarily ban meat products from a list of abattoirs from around the world has expanded to now take in four Australian processing plants.
According to Meat and Livestock Australia, limited information has been forthcoming from the Russian Government detailing why the temporary bans have been put in place.
However, an MLA spokesman said it has been confirmed that there the issue relates to "microbial contamination" of the meat.
The MLA spokesman said there are now four - not one as initially thought - Australian abattoirs on the Russian blacklist.
Three of those abattoirs process kangaroo meat, and just one of the abattoirs in question processes beef.
The temporary trading bans have been imposed by Russia on abattoirs from a long list of countries, including: Argentina, Brazil, Denmark, France, Germany, Spain and Italy.