Seems that way. Looking at the addresses sections for various countries shows a much higher percentage of Chinese companies compared to other countries:

    28,073 China
    21,041 Hong Kong
     6,860 United States
     5,534 Russia
     4,836 United Kingdom    
     4,125 British Virgin Islands
     3,253 Indonesia
     3,208 Switzerland
     1,438 Brazil
     1,312 Canada
       828 India