I like the article Malt
It points out a few items that Foreign companies deal with including the cost of double Accounting within the U.S. and their own countries. I would imagine that the costs though, to the larger company, are minimal in the overall scheme of things and they just choose not to do it to send a message to U.S. officials.
In the case of GRSR it is a big deal as the costs are big for a small company. IMO this is what has delayed GRSR getting back on the OTCBB since PK left. Hopefully this will all change soon as there looks to be some really great things in the works.
To all who may think that GRSR may not care to go back to being current and marketable, we all certainly can have our own opinions. However, I believe that Girasolar has every intention on reviving GRSR and utilizing, smartly, the shares to grow the business.