Overview of MgB<sub>2</sub> wires fabricated by Sam Dong Co., Ltd.

MgB2 is a known superconductor material competing with the commercially popular low-temperature superconductor of Nb–Ti. The key advantages of MgB2 include a relatively high transition temperature of 40 K, low material cost, and large upper critical field, with potential in various superconducting applications in a cryogen-free environment. This review will summarize the state-of-the-art MgB2 various conductors fabricated by Sam Dong Co., Ltd., Republic of Korea and provide clear insights to practical users.