Regulators are tightening semiconductor supply chain oversight, as shown by Singapore’s seizure of a US$42 million mansion tied to alleged illicit Nvidia AI chip smuggling and probes touching major server suppliers. KLA Corporation supplies inspection, metrology, and process control systems, generating most of its revenue from Semiconductor Process Control at about US$11.9b, with a market cap of US$394.1b. Its tools help manufacturers prove chips are made to spec and within export control rules, a focus after the latest Nvidia smuggling probes. Lam Research supplies etch, deposition, and cleaning equipment, generating about US$21.7b in revenue from semiconductor equipment and services, with a market cap of US$541.9b. Lam is positioned at the center of AI driven wafer fab spending and tighter supply chain oversight, with tools that chipmakers rely on to qualify secure, high bandwidth production.