Be careful of Chinese buying airports, the Germans had a rude awakening when some Chinese 'investor' (apparently an ex (?) Yangtze River pilot) offered to buy Frankfurt Hahn airport in a bidding process orchestrated by KPMG:
Chinese company buys ailing Frankfurt Hahn Airport | Business | DW.COM | 06.06.2016
The whole thing turned out to be a complete fraud, the Chinese 'company' was more or less nonexistent and now the Germans are threatening to sue the Chinese 'investors,' unfortunately I can't find any links in English.
Here are some links in German, run them through Google Translate in order to get a rough idea of what happened;
Investment company untraceable, Hahn buyer becomes more dubious
Nobody knows who bought Frankfurt Hahn Airport
and
Frankfurt Hahn causes rumours.