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That's the same year Canada's hog industry started to remove ractopamine, best known as Eli Lilly & Co product Paylean.
In the first quarter of this year, Canada shipped nearly 93,000 tons of pork to China, on pace to hit 372,000 tons annually. That eclipsed the 87,500 tons that the US shipped, according to data from both governments.
The European Union, which has long banned ractopamine, is among China's top foreign pork suppliers, exporting 393,365 tons in the first quarter.
Chinese authorities banned the use of ractopamine in livestock in 2002. They say meat raised with the drug can cause nausea and diarrhea in people and be life-threatening to sufferers of heart disease.
US stance odd
The US Food and Drug Administration, however, did not see the same dangers when it approved ractopamine in 1999, concluding that it would "not have a significant impact on the human environment".
The FDA's stance has drawn some criticism, including a 2014 lawsuit by environmental groups alleging the agency has not fully examined the drug's impact. The suit was later dismissed on technical grounds but is being appealed.
Hog farmer and rancher groups defend ractopamine use, saying it allows them to grow livestock more efficiently, with less feed, said Dave Warner, spokesman for the National Pork Producers Council. Canadian health authorities also allow consumption of pork from hogs raised with the drug.
The China market is so lucrative that Canada's HyLife started selling pork online directly to Chinese consumers last year.
The small Manitoba processor hawks pig feet and elbows on e-commerce site JD.com, a competitor of Alibaba Group Holding Ltd.
"They're big online buyers," said Claude Vielfaure, HyLife's chief operating officer. "You try to move your pork all kinds of ways."
