VANCOUVER, British Columbia — Global politics, big money, high technology and the intricacies of Canadian law will come together on Monday when the extradition hearing of Meng Wanzhou, the chief financial officer of the Chinese telecommunications giant Huawei, begins in a Vancouver courtroom.

Ms. Meng, 47, a former secretary at Huawei who rose to become a public face of the company, was arrested in Vancouver in December 2018 after the United States requested her extradition on fraud charges. She has been detained in the city since then.

The arrest has put Canada in a difficult spot between two world powers — China and the United States — and severely damaged the country’s relations with China. Huawei is one of China’s most prominent companies.

Shortly after Ms. Meng’s arrest, China detained — in retaliation, some say — two Canadians and accused them of espionage. It has also punished Canada by restricting imports of pork, canola oil and other Canadian products. Complicating matters, Canada is in the process of deciding whether to allow Huawei to participate in the development of its next-generation 5G network.