Kirkland Lake Gold Positioned for Strong Operating and Financial Results in 2021, Company Provides Three-Year Production Guidance Kirkland Lake Gold Ltd. today announced the Company’s full-year guidance for 2021 1 including production of 1,300,000 1,400,000 ounces, driven by strong growth at Detour Lake Mine, with all-in sustaining costs per ounce sold 2 on track to remain unchanged from 2020 levels. Guidance for 2021 includes increased capital spending largely in support of future production growth at Detour Lake, and a greater commitment … Kirkland Lake Gold Ltd. (“Kirkland Lake Gold” or the “ Company ”) (TSX:KL) (NYSE:KL) (ASX:KLA) today announced the Company’s full-year guidance for 2021 1 including production of 1,300,000 1,400,000 ounces, driven by strong growth at Detour Lake Mine, with all-in sustaining costs (“AISC”) per ounce sold 2 on track to remain unchanged from 2020 levels. Guidance for 2021 includes increased capital spending largely in support of future production growth at Detour Lake, and a greater commitment to exploration to follow up on recent drilling success at all three of the Company’s cornerstone assets. All dollar amounts are expressed in U.S. dollars unless otherwise noted.