Wonik Materials Co., Ltd. — AI supply-chain exposure

Wonik Materials supplies the specialty process gases — nitrous oxide, silane-family compounds and other high-purity feedstocks — that memory fabs consume continuously to grow, etch and deposit the thin films inside a chip. Its customers are the Korean memory giants Samsung and SK hynix, placing it deep in the DRAM and NAND supply that feeds AI's memory appetite. Gases are a qualified consumable, bought wafer after wafer, and a purity failure stops a line cold — which gives an approved supplier a sticky, recurring seat even where the model reads its overall centrality as modest.