Explainer: What is China's Huawei Technologies and why is it controversial?

Huawei began competing internationally in the 1990s and was known for drastically undercutting rivals on price

The arrest in Canada of Meng Wanzhou, a top executive at China's Huawei Technologies Co Ltd and daughter of the founder and CEO, jolted the global business community on Thursday and raised fears that a truce in the US-China trade war could come to a swift end.

Meng's arrest came at the behest of US authorities and is connected to an investigation into alleged violations of US trade sanctions, a person familiar with the matter told Reuters.

China's foreign ministry said neither the United States nor Canada has explained reasons for the arrest.

What is Huawei?

Huawei is the world's