SAN MATEO - Armco Metals Holdings, Inc. ("Armco Metals") (NYSE MKT:AMCO), a distributor of imported metal ores and a steel recycler, today announced that it entered into a stock purchase agreement to acquire 100% of Draco Resources, Inc. ("Draco Resources"), a California-based corporation engaged in the exploration, mining, and trading of iron ore and minerals, via a stock exchange valued at approximately…