Kat Exploration Limited ?? has it been changed? it use to be KAT Exploration Inc. http://www.otcmarkets.com/stock/KATX/company-info http://edgar.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001508331&owner=exclude&count=40 Differences Between a Corporation and a Limited Liability Company (LLC) http://www.legalzoom.com/incorporation-guide/corporation-llc-comparison.html