[2] Ng was arrested on 6 January 2021, accused of violating the Hong Kong national security law, after participating in the 2020 Legislative Council primary election, and has been remanded in custody since the end of February.

[3] The British Airways Hong Kong Cabin Crew Union was dissatisfied with the employer's unwritten rule that local flight attendants should "retire" at the age of 45.

[12] Ng said that the CTU would help organize more new unions to defend the political and labor rights of Hong Kong's working women.

The "HA Staff Front" held a strike for five days since early February 2020, demanding the Hong Kong government to close the border completely to fight against the epidemic.

Wen Wei Da Gong criticized Ng and the former chairman of the Hong Kong Dragon Airlines Flight Attendants' Association, Anna Shih, for mobilizing health care workers to go on strike.

[2] Ng was arrested on 6 January 2021, accused of violating the Hong Kong national security law, after participating in the primaries, and has been remanded in custody since the end of February.