M&A · Private Equity · Business Succession
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M +82-10-3550-9082 E [email protected] H sungsoochoi.com/en A 13F Hongwoo Building, 373 Gangnam-daero, Seocho-gu, Seoul, Korea
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Sung-Soo Choi completed the Judicial Research and Training Institute of Korea (32nd class) in 2003 and served as a judge advocate in the Republic of Korea Army. From 2006 to 2013 he was a partner in the Antitrust and M&A group at Kim & Chang. From 2013 to 2025 he was the managing partner of TY&Partners (Hyehwa), advising Korean and international pension funds, financial public institutions, asset managers, and listed and private companies. He holds an LL.B. from Seoul National University College of Law and an MBA from IE Business School in Spain, and is a Certified Investment Manager in Korea.
Since 2014 he has led TY&Partners' dedicated team for the National Pension Service of Korea (NPS), advising on more than 200 commitments to private equity, secondaries, credit, real estate, infrastructure, and hedge funds managed by global sponsors such as Blackstone, Carlyle, and KKR. This work has covered the full cycle of overseas alternative investments, from negotiating subscription agreements and side letters to MFN elections and Bank of Korea filings. He has also advised on NPS co-investments in a shipping company, a large retailer, a car rental company, and a shopping complex, and on commitments to Korean private equity funds including MBK Partners and Hahn & Company. At Kim & Chang, he represented foreign investors including Carlyle, Morgan Stanley, Goldman Sachs, and Bain Capital in major transactions such as investments in a bank and a security services company.
He has also handled mid-market and SME M&A, including the acquisitions of a semiconductor parts manufacturer and a bridge construction company, the sale of a capital company, and the acquisition of a company in rehabilitation, as well as group restructurings. His antitrust work includes cartel and unfair intra-group support cases and merger filings. He has served on the International Contract Committee of the Defense Acquisition Program Administration (DAPA), as a bankruptcy trustee for the Seoul Bankruptcy Court, and on the Merit Review Committee of the Seoul Regional Tax Office, and has contributed to the World Bank's Doing Business in Korea and to IFLR. He brings legal, financial, and business perspectives together to offer owners and investors deal structures they can execute.