Born in Hong Kong, Fok developed a passion for music at a very young age. She obtained her BM degree in Composition and MM degree in Choral Conducting from Moores School of Music, University of Houston, USA in 1990 and 1992. Fok received piano training from Prof Ma Tsang Tse and Nancy Weems as well as vocal training from Anna Ching and Dr Byron McGilvray. She also studied choral conducting with Dr Charles Hausmann, orchestral conducting with Nicholas Wyss, and composition with Dr David A White. As a student conductor, Fok conducted three university choruses. She also conducted the choir of the Houston Cultural Centre, the Kipling Choir, Ritz Singers as well as a number of school and church choirs in Texas, USA and Ontario, Canada. Under her baton, the choirs had given numbers of performances, and the choir of the Houston Cultural Centre was the first Chinese group being invited to perform in the Houston-Alief Arts Festival in 1993.

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Fok joined The Hong Kong Children's Choir in 1995 and conducted one of the senior choirs. She was appointed Music Director in October 1997. In May 1997, she was selected as one of the four conductors to perform with the Toronto Children's Chorus at the Fourth International Symposium for Conductors of Treble Voice Choirs in Canada. On 30 June 1997, she led our choristers sing at the Farewell Ceremony of the British Hong Kong Government, which was broadcasted worldwide. Under her leadership, The Hong Kong Children's Choir was invited to perform in the 24th ISME (“International Society for Music Education”) World Conference in 2000. The highly acclaimed performance led to another invitation for the choir to perform in the 25th ISME World Conference in Norway in 2002. It is extremely unusual for ISME to invite the same choir to perform in two consecutive conferences. 

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Fok enjoys an international reputation for her dedication to children’s choral music. She has conducted workshops and masterclasses in Canada, Australia, Singapore, Malaysia and Indonesia. Moreover, Fok is frequently invited as the adjudicator of singing and music competitions, and has performed as guest conductor with numerous organizations including professional orchestras such as Vancouver Chamber Orchestra and the Hong Kong Chinese Orchestra, as well as outstanding choirs such as the Hong Kong Youth Choir, the Good Hope School Choir and the St. Paul Co-educational College choir. Fok has also given the Hong Kong première of distinguished works including “Mass of the Children” by John Rutter and “African Sanctus” by David Fanshawe. On the other hand, Fok is actively involved in charitable events. She was one of the Hong Kong “Ten Outstanding Young Persons” awardees in 2001. In 2007, Fok was recognized as “Persons with Outstanding Contributions to the Development of Arts and Culture” under the Secretary for Home Affairs Commendation Scheme. She was also named among the “Top 100 Musicians of the Year” by the International Biographical Centre.