Two risks, one outcome
Compliance and infringement are separate problems that end the same way — a listing pulled and inventory you cannot sell. Compliance is about your product meeting the safety, testing, and labeling rules of the market you ship into. Infringement is about your product or its packaging copying something another party already owns.
Neither shows up in a supplier quote. A factory can make a compliant-looking sample and still hold none of the documentation your category requires, and it will rarely tell you that the design you sent resembles a patented one. Clear both before you pay, because tooling and a purchase order are the two costs you cannot recover.
Where compliance lives
Compliance is defined by your product category and your destination market together, not by your supplier. The same item can be unregulated in one market and heavily gated in another. You determined the mandatory certifications before contacting suppliers; widen that now to the full compliance scope below, before production is booked and while the requirement can still shape the product.