The forgery allegations against Frigo Royal Inc. come amid frosty relations between the two nations following Canada's arrest of a senior Chinese telecoms executive on a United States warrant and China's detention of two Canadian nationals in apparent retaliation.
China is suspending all meat imports from Canada amid their dispute over the Canadian detention of a top executive at the Chinese tech company Huawei.
An investigation into Canada's export certificates has revealed as many as 188 "counterfeit" veterinary health documents and the existence of "obvious safety loopholes", the Chinese Embassy in Canada said in a statement on its website.
Prime Minister Justin Trudeau has sought help from US President Donald Trump, who is supposed to meet with Chinese President Xi Jinping at the upcoming G20 summit in Osaka, Japan and discuss trade relations that have been damaged by the ongoing tariff war.
"We hope the Canadian side would attach great importance to this incident, complete the investigation as soon as possible and take effective measures to ensure the safety of food exported to China in a more responsible manner", the Chinese embassy said in the post.
The Chinese have refused to talk to senior Canadian government officials, including Foreign Minister Chrystia Freeland.
According to a statement released by China's embassy, a batch of pork from Canada was found to contain residues of ractopamine, a feed additive banned in many countries.
Canada's pork exports this year have so far jumped 50% over the 2018 level of C$514 million ($390 million), according to the statement from the Canadian Pork Council. This incident is specific to export certificates to China.
The agency, she added, "has taken steps to remedy the situation" while continuing to work with industry partners and Chinese authorities.
"The Canadian food system is one of the best in the world and we are confident in the safety of Canadian products and Canadian exports", she said. She confirmed that the agency had found "inauthentic export certificates". "Export certificates to other countries are not affected", Bibeau said in the statement.
Earlier this month, Reuters reported exclusively that China planned to boost inspections of imported Canadian meats and meat products.
Beijing had previously detained two Canadians - former diplomat Michael Kovrig and businessman Michael Spavor - and blocked Canadian agricultural shipments worth billions of dollars.
The meat controversy comes amid soured Chinese and Canadian relations since the arrest of Meng Wanzhou, the finance chief of technology giant Huawei who is facing possible extradition to the U.S. where she faces charges of violating sanctions against Iran.