SK hynix will begin constructing its mega fab complex called the Yongin Semiconductor Cluster in March 2025, with a completion date estimated in 2046 (via ComputerBase). The complex, which includes four separate fabbing facilities, will cost at least 120 trillion Korean won or just shy of $90 billion. Once completed, it will likely be the largest fab complex in the world, and there's even more room in the broader area for companies like Samsung to build other facilities.
SK hynix, one of South Korea's most notable semiconductor firms, has been planning its quadruple fab complex in the Gyeonggi Province next to Seoul for several years. The construction site is currently being prepared, and apparently, a third of those preparations have been completed, which likely means construction will start as planned in March 2025.
