in and emigrated to the UK from Hong Kong, and descendants of Hong Kongers born within the UK. British Consulate-General estimated a range between 25,000 and 30,000 UK expats based in Hong Kong in 2009. UK expat in Hong Kong includes decreasing number of settled British citizens due to waning colonial privileges, and increasing number of resourceful professionals varying pedigree known as FILTH (Failed In London, Try Hong Kong) who could adapt and aware of Hong Kong culture. Hong Kong Census 2011 recorded that over 33,000 British citizens resided in Hong Kong. Hong Kong is one of the main source markets for UK boarding schools and universities in terms of overseas born students – with more and more Hong Kong parents sending their children to UK boarding schools at an early stage. On the other way, a network of 20 internationals schools in Hong Kong run by the English Schools Foundation provides UK curriculum for IB seeking pupils. Hong Kong is one of the annual host on Commonwealth sports calendar the Hong Kong Cricket Sixes every late October. Tourism Hong Kong is Britain's 38th most important market for volume of visits and 27th for the amount spent by visitors as of 2013. Two-fifths of Hong Kong visitors to the UK are British citizens and Hong Kongers visiting friends and relatives and on holidays. The UK Home Office permits British National (Overseas) of ages 18 to 30 to participate Tier 5 (Youth Mobility Scheme) without sponsor nor limit on the number of places. Starting from 1 January 2014, both the UK and Hong Kong have offered "Working Holiday Programs" for a maximum stay of 24 months. The programme allows 1000 young students with Certificate of Sponsorship to holiday in Hong Kong or the UK and to take temporary employment as needed to cover the expenses of their visit. The programme aims to increase travel by young British citizens and young Hong Kong SAR passport holders, and to strengthen the links between the two regions. Participants receive the same treatment as Hong Kong permanent residents in all matters concerning the application of laws, regulations and practices regarding health and working conditions. This is a 24-month program – one of the longest offered by either government. Causeway Bay Books disappearances Between October and December 2015, five staff of Causeway Bay Books went missing. Lee Bo, also known as Paul Lee, a British citizen