Riverside Resources Inc.

06/23/2026

Phase 2 spans the broader La Union district — not just a single historic mine.

The program begins with step-out drilling at Union Mine before advancing across five additional priority zones defined during the 2026 field program.

This stage is designed for precision: initial holes define geometry and continuity, with expansion guided by results and recent geophysics.

Each target builds toward a clearer understanding of the district’s full potential.



x Questcorp Mining Inc.

rivres.com/news/2026-news/riverside-resources-and-questcorp-announce-commencement-of-p2026-06-09-001002

06/17/2026

Welcome to the Riverside Board, Marco Strub.

As a long-time shareholder, Marco brings extensive experience in investment research, capital markets, portfolio management, and mining corporate governance.

We look forward to his contributions as we continue advancing our project portfolio and partnership model.

06/11/2026

From model to action!

1 to 2 high-impact holes per target area are now being deployed to test priority zones identified through integrated mapping, aeromagnetics, and a property-wide IP survey. With targeting refined in real time and coordination alongside Questcorp Mining Inc., the Phase 2 program marks the transition from target generation to active discovery drilling.

06/09/2026

Months of mapping, sampling and geophysics now converge at the drill pad

Multiple targets.
Two mineralization styles.
Fully funded program with Questcorp Mining Inc..

Discovery leverage in motion.

Read the details 👉 rivres.com/news/2026-news/riverside-resources-and-questcorp-announce-commencement-of-p2026-06-09-001002

06/08/2026

“Copper is required for all electrical energy, and today 80% of terminal energy is carbon-based and only 20% is . If we want a green world, that has to be flipped, where 80% of terminal energy has to be electricity. The metal that carries electricity is copper in every way. That is the key metal” 👀

Pierre Lassonde said it best 👇

Since the advent of electricity, copper has played an essential role in energy generation and transmission. It will be similarly unreplaceable as the world moves away from fossil fuels to more sustainable sources of energy.Pierre Lassonde, founder and chair emeritus of Franco-Nevada (TSX:FNV,NYSE:FN...

05/29/2026

From data collection to drill conviction.

As datasets converge, our La Union Project advances toward a focused Phase 2 Drill Campaign grounded in structural clarity and high-grade confirmation.

💬 Take it from our President & CEO, John-Mark Staude…

05/29/2026

What does 248km of aeromag actually reveal?

✅ NW-trending feeder structures emerging
✅ Magnetic bodies at depth supporting CRD & Carlin-style targets
✅ IP survey next to tighten targeting

Data is converging ahead of summer drilling at the La Union Project!

TSXV: RRI | OTC: RVSDF | FSE: 5YY

05/28/2026

Beneath surface cover, structure matters.

The expanded magnetic grid enhances interpretation of La Union’s structural framework at depth, helping trace mineralized trends across the district and refine Phase 2 drill targeting.



👉 https://rivres.com/news/2026-news/riverside-resources-and-questcorp-complete-expanded-aeromagn2026-05-21-001002

05/21/2026

✅ Expanded drone survey
✅ Structural reinterpretation complete
✅ Drill roads & pads underway

advancing La Union toward summer 2026 drilling with partner Questcorp Mining Inc.

Summer catalyst approaching.

🔗 rivres.com/news/2026-news/riverside-resources-and-questcorp-complete-expanded-aeromagn2026-05-21-001002

05/20/2026

“We’ve made it two decades and not blown up the share structure,” says our leader, John-Mark Staude, related to discipline, alliances with majors, royalties, and why he believes this is a strong moment for and the industry.