Scott Elfen, P.E. (Ausenco Engineering Canada ULC), James Millard, P.Geo. (Ausenco Sustainability ULC), Sergio Lagos, M.Sc. RM Ex Met CMC (Ausenco), Bruno Yoshida Tomaselli, FAusIMM (Deswik), Alan J. San Martin, P.Eng. (Micon), and William J. Lewis, P.Geo. (Micon), each of whom are "Qualified Persons" as defined by NI 43-101 and independent of Tiernan, have verified the scientific and technical data disclosed in this news release, and have otherwise reviewed and approved the scientific and technical information in this news release.