UEFA: 5% of all clubs (34 in total) have a main shirt sponsor with a company headquartered in Asia

"Companies headquartered in Asia appear on 34 different clubs’ shirts (equivalent to 5% of all clubs). One-third of those clubs play in the Premier League - which, when combined with the four other sponsors in that country that have headquarters in North America or Africa, highlighting the particular global appeal of that league and its clubs," said UEFA in its report "The European Club Footballing Landscape", published on 18/01/2019.

"Gambling and sports betting firms sponsor clubs in a total of 26 leagues across Europe. In ten of those leagues (many of which are located in south-east Europe), they are the most common type of shirt sponsor. The highest levels of concentration can be found in Bulgaria (where 10 of the 14 clubs in the top division are sponsored by a betting company) and England (where such firms sponsor 9 of the 20 clubs in the Premier League)," said UEFA.

"The retail and financial services industries are the most widely represented, with each appearing on just under a hundred clubs’ shirts. The retail industry has the broadest geographical spread, with shirt…