Michael Spavor has been confined since 2018, in the wake of being captured with individual Canadian ex-negotiator Michael Kovrig.
The decision will test a stressed connection between the Canadian and Chinese governments.
It comes as a removal fight including Meng Wanzhou, a senior chief at Chinese tech goliath Huawei, happens in Canada.
Pundits have blamed China for treating both Spavor and Kovrig as political negotiating advantages, held as a feature of what is known as “prisoner strategy”.
In an explanation distributed on Wednesday, the Dandong court said: “For the wrongdoing of spying and illicit arrangement of state mysteries abroad [Spavor] has been condemned to 11 years in prison, seizure of 50,000 yuan ($7,715: £5,578) worth of individual property and extradition.”
The assertion didn’t expressly state when the removal would happen however China ordinarily extradites indicted outsiders solely after they have finished their jail sentence.
Canadian Prime Minister Justin Trudeau said the conviction was “totally inadmissible and low”.
“The decision for Spavor comes after more than over two years of discretionary detainment, an absence of straightforwardness in the lawful interaction, and a preliminary that didn’t fulfill even the base principles needed by global law,” he said in a proclamation, as per a Reuters report.