VANCOUVER, BRITISH COLUMBIA — (Marketwired) — 05/17/13 — Robert C. Grey ("Mr. Grey") (NTD: and his wholly-owned Company, Estevan Investments Limited) filed an early warning report dated May 17, 2013 (the "Early Warning Report") advising of their holdings in Mannix Resources Inc. ("Mannix" or the "Company").On May 17, 2013, Mr. Grey acquired beneficial ownership and control of 1,150,000 common shares (the "Shares") of the Company at a deemed