Bibeau noted the issue "does not affect export certificates to other countries".
China bought C$310 million ($235.26 million) worth of Canadian pork from January through April, making it Canada's third-largest export market by value, according to official data.
He added that about 188 "forged" veterinary certificates were delivered to "the Chinese regulatory authorities through Canada's official certificate notification channel", which the spokesman claimed indicates that there are "obvious safety loopholes" in the Canadian meat export supervision system.
In days, the United States and China could also seek to relaunch talks to settle a trade dispute that may be key to resolving the Canada-China row.
The 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 U.S. warrant and China's detention of two Canadian nationals in apparent retaliation.
Canadian reactions to the announcement have ranged from regret to outrage, sprinkled with speculation that Beijing's move might be related to the ongoing legal drama of Meng Wanzhou, the chief financial officer of Huawei who was arrested in Vancouver on a U.S. warrant in December.
The Chinese Embassy in Ottawa said in a statement Tuesday that Chinese customs inspectors detected residue from a restricted feed additive called ractopamine in a batch of Canadian pork products, prompting the ban.
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China will turn away any "meat products" shipped from Canada starting on Wednesday, according to a report in Le Journal de Montreal, citing an official in the office of the Chinese consulate general in Montreal.
Canadian beef exports to China so far this year total $63 million.
Earlier this month, Reuters reported exclusively that China planned to boost inspections of imported Canadian meats and meat products.
"It will have an outsized impact on Quebec", Saint-Jacques said. "This is a clear example of how China uses phytosanitary reasons to block exports", said Saint-Jacques.
U.S. President Donald Trump last week told Canadian Prime Minister Justin Trudeau that he was prepared to raise the case of the two detained Canadians with Chinese President Xi Jinping, whom he is to meet with in Japan on Saturday at the Group of 20 meeting.
Last week, the Xinhua state news agency said China was halting imports from a Canadian pork producer after food safety issues were detected in one batch of pork. It has also suspended import permits for three pork producers. "Any assertion by the Chinese government to the contrary is both false and baseless", said a statement from Tory agriculture critic Luc Berthold.
The CFIA is working with Chinese officials to resolve the matter.