SK Specialty — AI supply-chain exposure

SK Specialty, formerly SK Materials, makes the specialty gases that fabs consume in enormous volume, and it is the world's largest producer of NF3 — the gas used to clean the chambers of the deposition and etch tools that build chips layer by layer. It sits in the materials layer of the chain, upstream of everything, as a core supplier of process gases to the Korean memory complex that dominates DRAM and HBM.

Its structural hook is consumability. Unlike equipment, these gases are used up on every wafer and every cleaning cycle, so demand tracks fab utilization directly — and as memory output ramps to feed AI, so does gas consumption. The model places SK Specialty as a producer of process chemicals because supply of the highest-purity gases is concentrated in a few hands, and a fab starved of them cannot run regardless of how much other capacity it holds.