The UI itself is quite okay, other than a lack of interest from the targeted market or lack of marketing/competitiveness, I don't see other reasons why the exchange would fail. Kinda reminds me of one exchange I followed in the past. They spent a ton of money buying ad slots on La Liga, then went bankrupt just a few months later.
It's hard to compete even if they're going to solely focus with their locals. Despite the good news about them as part of recovery plan to be cool with cryptos, bitcoin and things related to it. That doesn't ring a bell for now, maybe the impact will be just good as possible in the next several months to years but looking at it now is an expected result. Although they have an advantage for being the first exchange in Hong Kong to be granted with a license to operate as an exchange. I also see that they're not just an exchange but also got some other service to offer based on their website:
https://group.hashkey.com/en/Honestly, they need to focus first gaining popularity as an exchange and then had a side way from those services that they offer. Because once they gain the popularity as an exchange, they're easily recognized and partnerships will just come eventually to them. Well, it's truly a tough market for them to compete based on the market's status now. Maybe trying some test run of marketing ad campaigns and competitions could help them be recognized.