Andina Copper Provides Exploration Program Update at Piuquenes Copper-Gold Project

Vancouver, British Columbia — December 16, 2025 — Leads & Copy —

Andina Copper Corporation is progressing with its exploration program at the Piuquenes porphyry copper-gold discovery in San Juan, Argentina. The 2025-26 program includes surface geochemistry, geophysical surveys, and drilling to advance the Piuquenes Central and East discoveries.

Diamond drilling of 3,000 m is scheduled to begin in early January 2026, targeting areas identified through surface exploration and geophysics, as well as extensions of the Piuquenes East porphyry discovery. Previous drilling highlights include 208 m @ 0.31% Cu, 0.13 g/t Au, 1.24 g/t Ag (from 292 m) and Including 98 m @ 0.49 % Cu, 0.16 g/t Au, 1.26 g/t Ag (from 292 m).

The Company is also conducting a large-scale soil geochemistry program consisting of 600 samples on a 100 m x 100 m grid.

Geophysical surveys are underway, including drone magnetics, deep penetrating ground Magnetotellurics (MT), and Induced Polarization (IP) at Piuquenes East.

President & CEO Joseph van den Elsen noted that the company is in a catalyst rich period with exploration driven news flow.

The Piuquenes Project is located near Aldebaran Resources’ Altar Project.

Contact: Joseph van den Elsen, President & Chief Executive Officer, joseph@andinacopper.com

Jordan Webster, VP – Technical Communications, jordan@andinacopper.com

Source: Andina Copper Corporation