China earned a Level 2 "exercise increased caution" travel advisory a year ago. China is Canada's third-biggest trading partner, though dwarfed by the US, which trades eight times that amount, and comprises 50% of all Canadian imports and exports.
December 9: China summons the American ambassador to China to lodge similar complaints about Meng's case and demand the US rescind the order for her arrest.
The rights of foreign nationals in China have received renewed focus because of public concern over the fate of three United States citizens accused of committing "economic crimes" in the country.
"Without a doubt, these two Canadian citizens in China violated our country's laws and regulations, and are now undergoing investigation according to procedure", Zhang Jun, China's prosecutor general, said.
McIver, a teacher, has since been released and returned to Canada.
The thirteen include former diplomat Michael Kovrig and consultant Michael Spavor, arrested on December 10, for activities said to threaten national security, as well as Sarah McIver, who was subsequently freed and returned to Canada.
The US and other allies have also called on China to release the pair, and those who know the men reject allegations against them.
"China's a very large and substantive trading partner and we have to try to cool the temperature now and get back to some semblance of normal relations with this important partner", he said.
"I think that we are in a completely different place than we were just a year ago when it comes to our aspirations for China", MacKay said.
The new State Department warning also follows the arrest of several Chinese nationals in the U.S. on charges of espionage.
Wanzhou is now facing extradition to the US, which alleges that the Huawei executive attempted to evade USA trade embargoes against Iran.
The Canadian government has said several times it sees no explicit link between the arrest of Meng, the daughter of Huawei's founder, and the detentions of Canadian citizens. If you have Chinese heritage you may be particularly subject to additional scrutiny, it adds.