The above quote is from Wiki about RC, not from the “Cooking Light” article you posted a link to.
https://en.wikipedia.org/wiki/Royal_Canin
The Cooking Light article is about Cesar dog food recalls, not RC or any of Mars other brands.
https://www.fda.gov/safety/recalls-market-withdrawals-safety-alerts/mars-petcare-us-announces-voluntary-recall-limited-number-cesarr-classics-filet-mignon-flavor-wet
Mars does not make pet food, they own companies that make pet food and other products. As I wrote above, RC has it’s own facilities and team members.
The best thing to do is ask RC directly:
https://www.royalcanin.com/us/contact-us#Contact us
