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.