Capstone Copper

Capstone Copper is pleased to announce that the environmental permit for the Mantos Blancos Phase II Project has been submitted, representing the next phase of growth and supporting the long-term operational continuity of our Mantos Blancos mine.

NEWS RELEASE | Capstone Copper Announces 2026 Annual General Meeting Results

Read the full release here: https://capstonecopper.com/news/capstone-copper-announces-2026-annual-general-meeting-results/

TSX:CS | ASX:CSC

Today we reported record Q1 results, providing a strong foundation for the rest of 2026 as we focus on operation excellence and progressing our organic growth projects:
✅ Quarterly copper production of 48.0kt at C1 cash costs of $2.66/lb
✅ Record adjusted EBITDA of $329 million, continuing momentum built over past six quarters
✅ Record adjusted EPS of $0.12/share, benefitting from strong commodity prices
✅ Improved net debt to $738M and net debt / TTM EBITDA to 0.7x
✅ Over $1B in available liquidity providing financial flexibility
✅ 2026 production and cost guidance unchanged

Join us today at 5:00 pm Eastern Time / 2:00 pm Pacific Time (Thursday, April 30, 7:00 am Australian Eastern Time) to learn more about our first quarter results. Listen to the webcast here:

join.webinar.net

Q1 2026 Results Webcast & Conference Call

We invite investors, analysts, and stakeholders to join us for our Q1 2026 results presentation

Date & Time
📅 April 29, 2026
🕔 5:00 PM ET / 2:00 PM PT
📅 April 30, 2026
🕗 7:00 AM AET

Webcast Access
Join the live webcast: https://app.webinar.net/4QO2N17xpEG

📞 Phone Access
Instant connection via registration: https://emportal.ink/40HaFo5

Or dial in directly:
• Toronto: 1-437-900-0527
• Australia: 61-280-171-385
• North America Toll-Free: 1-888-510-2154