Cascada Silver Corp. To Become ATERRA Metals Inc

Toronto, Ontario--(Newsfile Corp. - December 11, 2025) - Cascada Silver Corp. (CSE: CSS) (OTCQB: CSSCF) ("Cascada" or the "Company") is pleased to announce that it has changed its name to ATERRA Metals Inc. ("ATERRA") to better reflect the Company's focus on copper and gold exploration and development. Cascada recently announced its intention to acquire three advanced copper-gold porphyry properties (the "Properties") in Chile and final binding option agreements on each of the Properties are being finalized.

The common shares of the Company will commence trading with the name "ATERRA Metals Inc." under the trading symbol "ATC" at the beginning of trading on December 16, 2025. The board of directors passed a resolution approving the name change in accordance with the Articles of the Company. The OTCQB symbol will be updated in due course.

Commenting on the new name, Carl Hansen, CEO noted, "The name ATERRA Metals is inspired by the potential of Atacama's mineral-rich terrain. It reflects management's exceptional discovery record in Chile's Atacama Region-one of the world's most productive mining areas. For more than three decades, our team has consistently demonstrated a proven ability to identify and advance high-value mineral deposits. This experience and sustained success underpins our strategy for generating meaningful shareholder value as we finalize the recently announced acquisitions of three advanced-stage copper-gold properties."

On November 20, 2025, Cascada announced that it had signed memoranda of understanding to acquire three advanced copper-gold porphyry properties in Region III, Chile, approximately 60 kilometres south of Vallenar. The Properties have been subject to significant historical exploration activities including drilling and, in the case of the Frontera Property, preparation of a historical resource estimate. Highlights from the Properties included:

• Frontera Property deposit historical mineral resource estimate:

− 16 Mt indicated grading 0.66% copper equivalent ("CuEq") (0.38% Cu & 0.22 g/t Au)

− 34 Mt inferred grading 0.64% CuEq (0.36% Cu & 0.22 g/t Au)

• Taruca Property (Totora Target) historical drilling highlights include:

− 142 m grading 0.69% CuEq (0.47% Cu & 0.17 g/t Au), hole DDHTP-02

− 114 m grading 0.61% CuEq (0.23% Cu & 0.31 g/t Au), hole DDHTO-07

• Clinton Property historical drilling highlights include:

− 166 m grading 0.62% CuEq (0.23% Cu & 0.31 g/t Au), hole RCCL-01