Scott, by no means has someone conducted due diligence as it is responsibly performed in business today by reviewing an email attachment of a sales agreement form. At best that is 1% of the process of due diligence.

An illegitimate operator could wholesale copy the best "sales agreement" form on the planet from someone who is legitimate. A Microsoft Word document or PDF proves nothing about the party's legitimacy. Nothing. Conducting due diligence on a company involves much more than reviewing a form they could email you. To "consider the terms" as you said, you have to know who it is you're dealing with. That's why you have to know, at a minimum, the public record of that incorporated entity within the jurisdiction in which it operates. That keeper of records is typically the secretary of state's office (at least for U.S. based companies).

Once you have that information, then you can understand who the parties are, who is its registered agent, where is its principal place of business, where is its registered agent's office, are these offices real places and presently occupied, who are the neighbors at those offices, what do those neighbors have to say about them, where does the business conduct its banking, which law firm represents them, who is their CPA, who are some of their customers, have they made the necessary filings with the government to keep their charter active, have they paid their annual corporate franchise taxes, who are their executive managers, where did those managers work previously, where did they obtain their degrees, what mutual contacts do you have, what do the mutual contacts have to say about them, do the managers have good track records, do the managers have criminal records, do the managers have a history of fair dealing, have they received any recognition by reputable publications.

Once you have answered those questions, then you have scratched the surface of conducting due diligence.

In the case of Halong Mining, we don't even know a real person's name who is an actual employee there. Not one person. This is a company that has supposedly spent $30 million USD in R&D, and there isn't one verifiable engineer or manager who is willing to claim publicly his or her employment with them. How big of a labor force do you think $30 million could buy? Doesn't that strike anyone as even a little strange?