Chemicals are an obvious, overlooked layer of the AI buildout, and most of the stocks have not moved yet. Entegris is the purity play inside TSMC's Arizona fab, where one contaminant can ruin a $30,000 package. MKS supplies specialty chemicals for advanced packaging, Rogers is an indirect play on optical transceivers and high-speed switches, and Element Solutions is the most direct advanced-packaging play, with organic growth the highest since COVID. Chemours belongs in the group too. x.com x.com x.com

