[4] He was awarded Justice of the Peace in 1996 and Member of the Order of the British Empire (MBE) for his services to the textile industry in 1997.

In June 2009, the three legislators formed the Economic Synergy which later co-founded the Business and Professionals Alliance for Hong Kong (BPA) in 2012 which Leung became the founding Chairman of the new party.

[3] On the debate over the 2014–15 Hong Kong electoral reform for the universal suffrage of the Chief Executive of Hong Kong, Leung opposed to the Occupy Central with Love and Peace campaign by the pan-democracy camp, appealed to the "silent majority" to oppose "Occupy protest".

Leung said the campaign would threaten the rule of law and social stability, while hurting Hong Kong's business environment.

[6] After the 2016 Hong Kong Legislative Election, Leung was handpicked by the pro-Beijing camp to be their candidate for the President of the Legislative Council of Hong Kong left over by the retiring Jasper Tsang, after potential candidates New People's Party's Michael Tien and nonpartisan Paul Tse withdrew their nominations, implicitly citing the influence of the Liaison Office.

Leung was questioned by the opposition over his British nationality which he renounced right before the vote and his close business ties with 11 companies in which he held shares and was the directors of seven of them.

Leung and Yau inserted their own words into the oath-taking on the first session of the Legislative Council and therefore were invalidated by the LegCo secretary-general Kenneth Chen.