- the location and type of samples. - the location, azimuth and dip of the drill holes and the depth of the sample intervals. - a summary of the relevant analytical values, widths, and to the nearest extent known, the true widths of the mineralized zone. - the results of any significantly higher-grade intervals within a lower-grade intersection. - any drilling, sampling, recovery or other factors that could materially affect the accuracy or reliability of the data referred to in this subsection. - a summary description of the type of analytical or testing procedures utilized, sample size, the name and location of each analytical or testing laboratory used and any relationship of the laboratory to the user.
...and since we are discussing non-reporting pink sheet companies, here is a good article on how to recognize mining fraud.