Comprised of a select ensemble of singers from the Hong Kong Bach Choir, the Hong Kong Bach Chamber Choir specialises in chamber and a capella choral music. Making its debut in an exclusive 2009 concert of sacred music, the Chamber Choir has gone from strength to strength, opening the Bach Choir's critically acclaimed Transformations programme in Hong Kong and Macau in 2011 and undertaking a number of productive collaborations with local and international ensembles. These include a joint performance with visiting Finnish choir Dominante in 2009, and After Gesualdo, an intimate concert with the Hong Kong New Music Ensemble combining Renaissance music with specially-commissioned pieces by such prominent local composers as Chan Wing-Wah and Ng Wah-Hei.
In August 2012, the Chamber Choir performed in two high-profile concerts. The first was a concert with world-renowned British conductor Nicholas Cleobury in a programme of contemporary British choral music. They then joined hands with other local choirs in the inaugural SingFest Finale Concert where they performed Mozart's C Minor Mass with German maestro Helmuth Rilling.
In March 2015 and 2016, the Chamber Choir was invited by Lingnan University as guest performers for its March Arts Festivals. Titled Bach and His Choral Legacy (March 2015) and An American Choral Journey (March 2016), the Chamber Choir presented two radically different programmes to the Lingnan community, with the former featuring music by Bach, Poulenc, Bruckner, and Bach, and the latter featuring works by Billings, traditional American hymns, negro spirituals, and contemporary American compositions by Charles Ives, Libby Larson and John Harbison.