In international trade for machining and metal parts, the most familiar question used to be:“Where is this product made?” But in recent years, more and more customers and customs/brokers have started asking a deeper sourcing question: “Where was the raw material melted?” In other words, the focus is shifting from Made in to Melted in.This change reflects a broader trend: attention is moving from “where the product was processed or assembled” to “where the raw material origina