When South Korean chipmaker SK Hynix begins trading on Wall Street this Friday, it will be one of the world’s biggest moments in recent years. Already listed on Seoul’s Kospi index with a market capitalisation of more than $1 trillion, the company is set to raise about $28-29 billion through American depositary receipts (ADRs) on the Nasdaq under the ticker symbol SKHY However, the road to Wall Street began not in a semiconductor lab, but on a construction site.