SEC Conflict Minerals Rule: Initial Disclosures Indicate Most Companies Were Unable to Determine the Source of Their Conflict Minerals. GAO-15-561: Published: Aug 18, 2015. Publicly Released: Aug 18, 2015. “According to a generalizable sample GAO reviewed, company disclosures filed with the Securities and Exchange Commission (SEC) for the first time in 2014 in response to… Continue Reading