Do you have a factual basis for this claim?
for this particular item? no. in general? yes. The metalurgical purity standards of the USA and Canada are much higher than most Asian countries, China and India included. The processes for bonding metals under high heat and pressure were patented in Belgium and the USA over 20 years ago. Companies that use them are few, (AllClad and Falk) Bonding pure metals is not an Alloy process. So what is being mixed together elsewhere may or may not be regulated. There have been issues with poor enameling (flaking chipping) and disc bottoms popping off as well as buckling in "bonded" metals in products made for considerably less money in Asia. Lead, a soft metal, easily maniputated is not allowed in food service markets in the US Canada Europe etc, but has been found in metalic products manufactured in China in the last 10 years.