Chinese delegates at the International Tiger Symposium in Nepal are arguing for the lifting of a current ban on the trade in tiger bones and skins.
But other Asian nations with threatened tiger populations want the ban to stay.
The argument centres on the existence of so-called "tiger farms" in China, which have bred thousands of captive tigers with the ostensible purpose of entertaining visitors.
But the conservation group WWF, which is chairing the symposium, says these farms are fronts for the production of tiger bone wine.
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