You will need to install a user script manager extension to install this script.
Amazon doesn't make the country of origin of products by third party vendors very visible.
This userscript fetches and displays the country of origin at the start of the product title.
Hover over flag to see country and Vendor name.
This script was initially developed to make boycotting the CCP more easy after repeated disappointments with purchased products and the ongoing human rights violations of the chinese communist party.
Update to the latest version