Thunder Energies Corporation (TNRG) Announces the Upgrade of a Letter of Intent to Test the Detection of Precious Metals in Mining Operations

TARPON SPRINGS, Fla., March 21, 2019 (GLOBE NEWSWIRE) — Thunder Energies Corporation (TNRG) today announced an updated agreement with Picchu Rio S.A. Gold Mining Company (www.hoovers.com/company-information/cs/company-profile.picchu_rio_gold_mining_company_sociedad_anonima.d606f5f7d06cfd4f.html) to amend the Letter […]