A business unit of Ultra Clean Technology (UCT), Chemtrace offers control and risk management services and customised analytical solutions to detect micro-contamination across the semiconductor manufacturing supply chain, including construction of fabs, chemical delivery, and chip manufacturing. Chemtrace can monitor for airborne molecular contamination (AMC), impurities in chemicals and ultrapure water, particles on tools or chambers, and defects on wafers. Headquartered in the US, Chemtrace have expanded to include new laboratories in South Korea and Taiwan.