Yes - in your research, look into what Stephen Barnes calls the 'catch-22' of the business investment visa. The conundrum is that technically, you're not supposed to work while on a tourist visa, yet you're also expected to have set up your business to some degree in order to get the business investment visa approved. In practice, according to Stephen Barnes, this means that as long as you have a business investment visa application in process, the immigration department will be ok with you creating certain facts on the ground for your business in HK.
Here are a few other quick tips:
- Anyone (resident or non-resident) can register a company in HK. HK companies are not required to have local directors. So, you could theoretically start registering your HK company today. Do note that while you're not required to have any local directors (all the company directors could be foreigners who have never even been to HK), you are required to have a HK-resident company secretary, and you're also required to prepare annual audited financial statements. Companies like sleek.com can help you with all of this.
- A big challenge for HK companies has traditionally been getting a bank account. About a decade ago, HK banks started to de-risk a lot in the wake of huge money laundering scandals, and they became less comfortable with business with a weak connection to the region and/or new businesses without much of a presence in HK yet. This made life really difficult for startups and new businesses. My impression is that the situation is improving, but I'd still expect it to take quite some time to open a bank account, especially if you're a non-resident. In the early days of your company, I'd begin with using an EMI like Currenxie, Airwallex, etc., and then consider applying for a traditional company bank account and MPF scheme once you're in HK and more set up.