His future engagements include Sarastro/Die Zauberflöte with Komische Oper Berlin on Tour to Japan, Zaccaria/Nabucco at Arena di Verona, Phorbas/Oedipe with Maestro Jurowski at London Philharmonic Orchestra in September 2017, Wurm/Luisa Miller Opéra de Monte-Carlo,Verdi Requiem with Fabio Luisi and DR Symfoniorkester, Banco/Macbeth in Teatro Municipale Salerno, Sarastro/Die Zauberflöte, Timur/Turandot and Lodovico/Otello with Pappano at Royal Opera House Covent Garden in London, Oroveso/Norma in Essen, Maria Stuarda at Opéra de Monte-Carlo, Banco/Macbeth in Toulouse, Alvise/La Gioconda at Malmö Opera, Ramfis/Aida in Santiago, Padre Guardiano/La Forza del Destino in Las Palmas, Filipp II/Don Carlo and Le bailli/Werther in Tel Aviv, etc...
His recent engagements include Phorbas/Oedipe by Enescu at Royal Opera House Covent Garden, Sarastro/Die Zauberflöte at Teatro Filarmonico di Verona, Re/Aida at Teatro Regio di Torino w. Noseda, Attila at Opéra de Monte-Carlo, Wurm/Luisa Millerat Teatro Verdi di Trieste, Matthäus Passion with Copenhagen Royal Chapel Choir, Fafner/Siegfried in Tokyo, Nourabad/Les Pêcheurs de Perles in Tel Aviv, Zaccaria/Nabucco at Festival di Caserta, Commendatore/Don Giovanni andIl Re/Aida in Arena di Verona, Timur/Turandot in Toulouse, Raimondo/Lucia di Lamermoor in Teatro Fialrmonico di Verona, Hunding/Walküre in Tokyo, Zaccaria/Nabucco with Daniel Oren in Tel Aviv, Sarastro/Zauberflöte with Ottavio Dantone and Marchese di Calatrava/La Forza del Destino with Zubin Mehta at Palau de Les Arts de Valencia, Il Commendatore/Don Giovanni in Montpellier, Die Legende von der Heiligen Elisabeth by F. Liszt at Staatsoper Stuttgart, Rocco/Fidelio at The New Opera in Bergen, Sarastro/Die Zauberflöte in Santiago and in Teatro Regio di Torino including Il Commendatore/Don Giovanni, Timur/Turandot at Puccini Festival di Torre del Lago, Sparafucile/Rigoletto in Kristiansand, La Wally at Opéra de Monte-Carlo and others.
His 2012-13 season took him to his debut at the National Theater Mannheim, where he sang the role off Fafner and Sarastro. He visited Opera Monte Carlo in the role of Count Rodolfo in La Sonnambula by Bellini. Furthermore, Mr. Sim was seen at Teatro Municipal de Santiago, where he sang the title role of Attila and the role of Papa Leon in Attila by Verdi.
In 1996, he was awarded first prize in the KBC competition in Korea. From 1998 to 1999, and he finished his studies of singing at the Vienna Conservatory. In July 2000, he was awarded two special prizes in the Belvedere competition. In-Sung Sim has won a number of other competitions, including those in Los Angeles and Oslo. Lieder recitals have taken the singer e.g. to the Marseille Opera and the Avignon Opera.
In 2001, he debuted at the Vienna State Opera, where he sang the roles of the Steuermann, Swallow in Benjamin Britten's Peter Grimes, and the Geisterbote in Richard Strauss' Die Frau ohne Schatten, as well as speaking roles, the Second Priest in The Magic Flute,Dulcamara, Don Fernando, Raimondo and Capulet, among others. In-Sung Sim has also debuted in the roles of Brétigny in Puccini's Manon Lescaut, Klingsor, Roucher in Giordano's Andrea Chénier and Silva in Verdi's Ernani.
The young bass In-Sung Sim appeared as a guest during the 2007-2008 season at such internationally known opera houses as the Teatro Verdi in Trieste, the Vienna State Opera and the Teatro Carlo Felice in Genova. He made his debut at the Salzburg Festival in 2008 in the role of Capulet in Gounod's Roméo et Juliette.
In the seasons 2008-2010 Mr. Sim has been singing at important venues such as Montpellier Festival, Tokyo Opera Nomori, Teatro Massimo di Palermo, Hongkong Opera and at Glynbourne and Vendee Festival, where he has been captivating audiences in the roles of Pimen in Boris Godunov, Commendatore in Don Giovanni and Don Quichotte. In the role as Gustavo in Faramondo he has been visiting the Lausanne Opera, the Opera de Vichy, the Théàtre du Champs Elysees and the Théàtre du Caen. Other roles has been Timur in Puccini's Turandot at the Savonlinna Festival, Dulcamara at the Seoul Opera, Sparafucile at Teatro Carlo Fenice di Genova and Glendower in the opera Merlin at Kissinger Festspiele.
In March 2012 Mr. Sim appeared as Timur/Turandot with Trondheim Symphony Orchestra.
He has also sung in CD productions of Parsifal and Tristan und Isolde for the Deutsche Grammophon label and the CD recording of Handel's opera Faramondo for EMI/Virgin Classics and also Handel's Alessandro where he performed the role of Clito.
Maria Stuarda, G. Donizetti, 11 December 2016, Opera Monte-Carlo
"Ottima interpretazione anche per In-Sung Sim nel ruolo di Giorgio Talbot"
Maria Stuarda, G. Donizetti, Oper von Monte-Carlo, 11 December 2016
"Der koreanische Bass In-Sung Sim (in Erinnerung als Billy Jackrabbit in La Fanciulla del West im November 2012 und Stromminger im Jänner 2016 in der Wally) ruft mit Gestalt desTalbot lauten Enthusiasmus hervor:eine königliche Stimme, nüchtern, aber solide geführt. Zahllose Ovationen begleiteten diese Aufführung"