Workers at distilleries Maisons Hennessey, Remy Martin, Courvoisier and Martell plan to go on strike next week over fears that the industry could relocate its bottling business to China in a bid to circumvent import tariffs.

By Alban Kacher (Reuters) -Around 500 staff at Hennessy, the cognac maker owned by French luxury giant LVMH, went on strike on Tuesday, a union representative said, to protest what he said was a plan to potentially bottle the brandy in China to avoid tariffs.

Cognac workers threatened to resume strikes next week after LVMH’s Hennessy said it’s studying the option of bottling in China in a bid to avoid tariffs the country recently imposed on European brandy.