"It contravenes Canada's WTO obligations and undermines the intent of the Trans-Pacific Partnership agreement that Canada signed earlier this year."
DCANZ considers Canada to be among the most protected countries in the global dairy trade, with tariff rates of up to 300 per cent prohibiting most trade outside of limited quota volumes. New Zealand has previously taken and won a WTO case against Canada for the use of illegal export subsidies.
DCANZ chairman Malcolm Bailey said Canada, with its high tariff rates, had "built a high wall" around itself, making it uneconomic as an export destination. Canada has a supply-managed dairy sector, which means farmers pay for allocated quota.
"The effect of their protectionism is to create milk products that can't be sold and they keep coming up with new ways to get it on the market," he told the Herald.
Canada is not a big player on world markets but any Canadian product that finds its way on to world markets is most likely to be skim milk powder, which can be held in storage for up to two years.
"If one player - let's say it's just few thousand tonnes - goes on the market and is prepared to get rid of it at US$1500 a tonne and the going price is US$2500 a tonne, it can have a big impact on the whole market," Bailey said.
"The financial impact on all the dairy exporting countries can be way out of proportion to the tonnage involved," Bailey said. "That's the most egregious part of what these protected dairy industries end up doing," he said.