Tsubame Sanjo is the name of a region in Japan well-known for its superior metalworking technology. It is located in the central area of Niigata Prefecture and is a center for the production of cutlery, hardware, and Western tableware. Tsubame was originally a city of craftsmen, while Sanjo was a city of commerce. Sanjo merchants spread hardware and western tableware produced in Tsubame City and, as a result, Tsubame Sanjo is well-known throughout the world for its advanced metalworking technology. The region produces extremely high-quality kitchenware.