S&T Corporation's Equity Buyback announced on March 19, 2021, has expired.

SNTEnergy Co Ltd, formerly S&T Corp, is a Korea-based company engaged in the manufacture and sale of heat exchangers. The Company manufactures heat exchangers, which are used for petrochemical plants, oil refining plants, gas plants and others; heat recovery steam generators (HRSGs), which generate steam for generation of steam turbines with use of the waste heat; steam surface condensers; DeNOx facilities, which eliminate the nitrogen oxide (NOx) materials, generated from combustion of nitrogen component in fuels and air, and others. The Company distributes its products within domestic market and to overseas markets. On November 8, 2013, S&T Dynamics Co., Ltd. transferred its entire 50.66% stake of the Company to S&T MOTIV Co., Ltd. After that, S&T MOTIV Co., Ltd became the Company's top shareholder.