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Justice Quentin Loh was appointed Judicial Commissioner in 2009, High Court Judge in 2010 and Judge of the Appellate Division in 2021. He retired on 24 December 2022 before returning as Senior Judge on 6 January 2023.

He graduated from the National University of Singapore in 1974 and was called to the Bar in 1975. Before joining the Supreme Court, he was Managing Partner of Cooma, Lau & Loh, a firm he co-founded in 1978. He was appointed Senior Counsel in 1999. In 2001, he moved to Rajah & Tann as an Executive Committee member before becoming Deputy Managing Partner in 2003.

In 2017, he was made an Honorary Bencher of Middle Temple and in 2018, he was appointed as Judge of the Supreme Court of Fiji on a part-time basis for three years to hear cases in an appellate capacity, excluding major criminal cases and cases involving constitutional issues. He was also made a Patron of the Singapore Branch of the Chartered Institute of Arbitrators that same year.

Justice Loh who was the judge in charge of the formation of the Singapore International Commercial Court (SICC) in 2015, was appointed as its President and a member of the Judicial Committee of the Academy of Experts in 2020 until his retirement.

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