Metalsource intersects 1.1 kg/t AgEq over 3.1 m; expands 260 m dip length

Vancouver, British Columbia--(Newsfile Corp. - April 16, 2026) - Metalsource Mining Inc. (CSE: MSM) (OTCQB: MSMMF) (FSE: E9Z) (the " Company " or " Metalsource ") is pleased to announce recently received assay results from ongoing exploration drilling at the Silver Hill Project, located approximately 15km south of Lexington, NC. Drill hole SH26-08 intersected 447 g/t silver equivalent (AgEq) over 13 metres, highlighting the scale and strength of mineralization. Within this broad interval, the company identified multiple zones of exceptional grade, including: 705 g/t AgEq over 5.4 metres 1,063 g/t AgEq (1.1 kg/t) over 3.1 metres, featuring 53% combined lead-zinc 604 g/t AgEq over 2.6 metres The results from SH26-08, combined with previously reported high-grade gold intercepts from SH26-07, indicate the emergence of a robust and expanding high-grade polymetallic system at Silver Hill.

The system is characterized by both high precious metal grades and significant base metal mineralization. While SH26-07 confirmed the presence of bonanza-grade gold, SH26-08 demonstrates that intervals of high-grade lead-zinc-silver mineralization extend down dip and remain open. Importantly, drilling continues to show that mineralization extends approximately 260 metres from surface and remains open at depth, underscoring the significant expansion potential of the system.

The consistent presence of sphalerite, galena, and chalcopyrite provides a clear mineralogical signature, enabling the exploration team to efficiently identify and target high-grade zones in real time, accelerating discovery and reducing uncertainty. Silver Hill is emerging as a compelling polymetallic asset, supported by: Strong precious metal credits (silver and gold) High base metal content (zinc and lead) A growing footprint with expansion in multiple directions With ongoing drilling focused on extending mineralization along strike and down dip, Metalsource is rapidly advancing toward unlocking the full s