Korea Development Bank
Following the Tongyang Group's bankruptcy in September 2013, Tongyang Cement and Energy went into court receivership. The three South Korean conglomerates with the largest ready-mix concrete businesses, namely Aju Group, Eugene Group, and Sampyo Group, all showed interest in acquiring Tongyang Cement in 2014. Among the three, Sampyo Group's bid was successful, and in September 2015, Sampyo Group formally acquired a 45.07% stake in Tongyang Cement, with the Korea Development Bank Sigma Private Equity Fund acquiring another 9.88%, in a ₩794 billion deal. Tongyang Cement and Energy adopted its current name Sampyo Cement in April 2017.