SK hynix Inc. is a South Korean memory semiconductor supplier of dynamic random access memory (DRAM) chips and flash memory chips. Hynix is the world's second-largest memory chipmaker (after Samsung Electronics and the world's fifth-largest semiconductor company. Founded as Hyundai Electronic Industrial Co., Ltd. in 1983 and known as Hyundai Electronics, the company has manufacturing sites in Korea, the US, China and Taiwan. In 2012, when SK Telecom became its major shareholder, Hynix merged to SK Group, the third largest conglomerate in South Korea. The company's shares are traded on the Korea Stock Exchange, and the Global Depository shares are listed on the Luxembourg Stock Exchange.