In this office, Chan serves as Chairperson of the Diocesan Pastoral Commission for Marriage and the Family, the Diocesan Commission for Laity Formation, the Committee for Promoting the Cardinal's Pastoral Exhortation, the Diocesan Board of Catholic Cemeteries and the Diocesan Committee for the Permanent Diaconate. He is also an Ex-officio Member of the Council of Priests, the Diocesan Personnel Commission, the Hong Kong Catholic Board of Education, the Hong Kong Catholic Education Development Committee, the Central Management Committee for Diocesan Schools and the Diocesan Building and Development Commission. While Chan has been the Vicar General, Hong Kong has recruited more married men to become deacons (Hong Kong was the first Catholic diocese in Asia to ordain married men as deacons).[13][14] Chan visited former Hong Kong leader Donald Tsang while Tsang's trials were ongoing.[15]
In 2017, Chan presided over the ceremonies in which the Our Lady of Fatima Statue passed through the territory on its first stop en route to Portugal to celebrate the centennial of the Marian apparition.[16]
Parish priest
Chan has been the Parish Priest of the Hong Kong Catholic Cathedral of the Immaculate Conception[17] since 2000.
View on the elevation of Bishop Zen
On 13 February 2006, Chan expressed his view on the then possibility of the elevation of Joseph Zen, the Bishop of Hong Kong, to Cardinal. He said although he was still waiting for a formal announcement, he expected Zen to be elevated to cardinal in the next consistory. He believed that his elevation will show how important the Holy See values the church in China, and that it would be an honour to have a cardinal once again to head the diocese. Zen eventually became a Cardinal.[18]
^Rousselle, Christine (1 December 2019). "Duluth's Bishop Paul Sirba dies unexpectedly at 59". EWTN. Catholic News Agency. Archived from the original on December 22, 2019. Retrieved 19 February 2020. The office of the vicar general ceases upon the death of the diocesan bishop.