United States - Import Price Index (NAICS): Clay product and refractory manufacturing was 98.30000 Index 2005=100 in January of 2026, according to the United States Federal Reserve. Historically, United States - Import Price Index (NAICS): Clay product and refractory manufacturing reached a record high of 131.70000 in October of 2012 and a record low of 95.70000 in November of 2025. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Import Price Index (NAICS): Clay product and refractory manufacturing - last updated from the United States Federal Reserve on April of 2026.