NYSE-A:CTGO TSX-V:DV | NYSE-A:DVS MERGER TO CREATE A NEW NORTH AMERICAN HIGH-GRADE, MID-TIER SILVER & GOLD PRODUCER AND DEVELOPER I N V E S T O R P R E S E N TAT I O N D E C E M B E R 2 0 2 5 W W W . C O N T A N G O O R E . C O M W W W . D O L L Y V A R D E N S I L V E R . C O M DISCLAIMER LEGAL DISCLAIMER The information contained in this presentation furnished by or on behalf of Dolly Varden Silver Corporation ("Dolly Varden") or Contango ORE, Inc. ("Contango") has been prepared in respect of the proposed ...