Song-Yong joined Rangdajied United FC from Thai Division 1 team, Nakhon Ratchasima Football Club.
The 26-year-old striker has represented North Korea at the U-23 and senior national team levels, besides having the experience of playing in the J League with Kyoto Sanga FC.
"I am very happy and excited to finally have arrived in India. I look forward to repaying the faith showed in me by the Rangdajied United FC management. So my main focus will be to play well for the team, and have a successful season with Rangdajied United Football Club," Song-Yong said.
FIFA Licensed Agent and Libero Sports Partner Arvind Narayan, who represented Kim Song-Yong in the transfer, said: "Kim is a young and powerful striker with a sharp nose for goal. He's a quality addition to the Rangdajied United FC team.