Anyone in Hong Kong willing to check physical company address? I'm in US.

The easiest way would be to post a letter over there requesting a reply and verification that it is the correct company (reply could be made via e-mail). A faster way would be to find a Hong Kong courier service and ask them to look up the address in person and report back to you. I'm not sure how you would settle a payment for that but you could probably come to some sort of agreement. Another idea, use Google maps - it's definitely that fastest and cheapest way to verify but the problem is all that tells you is that the address exists, it might not have the right people there.