Ms. Ng has previously joined organizations such as World Vision, Hong Kong Red Cross, The Hong Kong Society for Rehabilitation, St. James' Settlement, Good Citizen Vitality Women's Workshop, and others. Currently, in addition to making regular monthly donations to Oxfam, she also makes occasional donations to organizations such as Orbis Eye Hospital, Cancer Fund, Haven of Hope Christian Service, Tung Wah Group of Hospitals, and others.

吳女士曾加入香港宣明會、香港紅十字會、香港復康會、聖雅各福群會、好市民活力婦女工作坊‧‧‧‧‧‧等，現除每月定期捐助樂施會外，其他不定期捐助的有奧比斯眼科醫院、癌症基金、基督教靈實協會、東華三院等機構。