The Cathay "Securities" from you link is under Cathay "Financial", one of the largest businesses in China ($37.9 Bil in sales).
Cathay "Capital" that other have posted about here is a China-France investment firm.
I haven't been able to figure out if there is any affiliation between Cathay Capital and Cathay Financial, but I don't see anything connecting Cathay Capital and Cathay Securities.