After reviewing US tax law regarding ownership of foreign companies by US entities, we've concluded that it will be beneficial to reduce US ownership of BlockTrades (a Cayman Islands-based company) to under 51% as this will significantly simplify the tax reporting requirements for US stockholders. At 51% US ownership, it's classified as a "controlled foreign corporation", which is a pain in the neck to deal with now, and given the ever-changing and unpredictable US tax code, we've decided it's best for the company long term to get out of this classification.
Currently, BlockTrades is 100% US owned, so we're planning to sell 50% ownership to non-US investors. Due to US security laws, this offering will not be available to US citizens. Similarly, Cayman Islands security laws require that this offering cannot be made to Cayman Islands citizens. With the exclusion of these two groups, citizens of our countries (e.g. residents of Europe, Asia, etc) will be allowed to purchase shares.
We're not planning to make the actual offering yet: this thread is merely a "heads-up" that we've changed our planning in this regard and to get some feedback on potential methods we might use to ensure the 50% non-US citizen requirement (this latter issue will probably be of interest to other companies as well).
The actual offering will include a pro-forma profit/loss and balance sheet for the company, along with a discussion of our current and planned business activities, and an offering price.
We're planning to use a UIA to represent the stock shares. I think that the simplest way to initially meet the 50% requirement will be to create a whitelist that only allows trades/transfers by users who have been certified as non-US citizens (e.g. via passport, national card, etc).
A long term answer to this problem is more complex, however. If at some point BlockTrades became less than 50% US owned, it would be nice if US citizens were able to purchase shares back up to the 50% amount. Currently we don't have anything in place in the exchange to support this ability, however. I'm not advocating such a feature be added now, but if we get more business focused on this kind of UIA (e.g. similar to what DACX was doing, but for startup companies rather than US listed companies), we may want to consider it at that point.