Kirkland Lake Gold Ltd. reported extensions of high grade mineralization at depth and new high-grade intercepts, including a record high grade drill result in hole UDH1817 from underground drilling at its Fosterville Gold Mine in Australia. Underground resource definition drilling has continued to target down-plunge extensions of the Lower Phoenix and Harrier South gold systems to assess the potential of Mineral Reserve expansion. Recent drill results returned from 20 underground holes totaling 6,471 meters into extensions of the Lower Phoenix gold system include the highest-grade drill intercept ever recorded at Fosterville. Results continue to demonstrate the continuity of exceptional high-grade visible gold mineralization on both the newly discovered west dipping Lower Phoenix Footwall and Eagle Structures in the Lower Phoenix gold system. A drill program of 7 holes totaling 2,670 meters in the Harrier South gold system has reaffirmed the Mineral Reserve conversion potential of this area. Recent drill results continue to support the potential to expand Fosterville's Mineral Resources and Reserves and confirm continuity of high-grade gold mineralization down plunge on the Harrier South gold system.