Beijing, Dec. 6 -- China on Thursday demanded Canada release a Huawei Technologies executive who was arrested in a case that adds to technology tensions with Washington and threatens to complicate trade talks.

Huawei's chief financial officer, Meng Wanzhou, faces possible extradition to the United States, according to Canadian authorities. The Globe and Mail newspaper, citing law enforcement sources, said she is accused of trying to evade U.S. curbs on trade with Iran.

The timing is awkward following the announcement of a U.S.-Chinese cease-fire in a tariff war over Beijing's technology policy. Meng was detained in Vancouver on Saturday, the day Presidents Donald Trump and Xi Jinping met in Argentina and announced their deal.

Asian sto...