The core of each claim block covers magnetic lows similar in magnitude to the magnetic signature over the known porphyry deposits at Cananea and Caridad.
Pembrook entered into an Option and Joint Venture agreement with Vale S.A. on the Rio Sonora property. Under the terms of the agreement Vale can earn up to a 60% interest by incurring expenditures of US$7 million and making cash payments totalling US$400,000 over five years.














