GS Group, the South Korean energy, retail and construction conglomerate, on Wednesday said it promoted 50 executives across its affiliates, the most the group has carried out in its annual reshuffle since its establishment in 2005. The promotions include Kim Seong-min, new CEO at GS Caltex, Yoo Jae-young, CEO of GS Power, and Cheong Yong-han, CEO of GS Entec. Kim, along with Hur Sae-hong, the incumbent CEO of GS Calt.