Sean-Rae Zalewski

at $SDRC 🇺🇸 We're advancing offtake discussions with a leading global metals trader as we execute our staged $222.7M plan to build a 450 TPD critical-minerals mill in Idaho's historic Warren District. Gold, silver, PGMs, rare earths & tungsten. Hundreds of American jobs. The plan is working. #Gold, #silver, #PGMs, #REEs & #tungsten + hundreds of US jobs in Idaho's Warren District.

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$sdtc A huge thank you to Roy Sternes for the outstanding introduction to Governor C.L. “Butch” Otter five months ago — what a game-changing connection! We are absolutely thrilled to have Governor Otter as Chairman of Sidney Resources. His extraordinary depth of knowledge, brilliant strategic insights, and remarkable focus were on full display during his visit to our Warren District site in early June. The future looks incredibly bright! Governor Otter’s visionary plans for the Unity expansion and his lifetime of accomplished leadership are set to propel SDRC to new heights. Honored and excited for what’s ahead! $SDRC #IdahoMining #CriticalMinerals

$sdrc @SDRCMINING A huge thank you to Roy Sternes for the outstanding introduction to Governor C.L. “Butch” Otter five months ago — what a game-changing connection! We are absolutely thrilled to have Governor Otter as Chairman of Sidney Resources. His extraordinary depth of knowledge, brilliant strategic insights, and remarkable focus were on full display during his visit to our Warren District site in early June. The future looks incredibly bright! Governor Otter’s visionary plans for the Unity expansion and his lifetime of accomplished leadership are set to propel SDRC to new heights. Honored and excited for what’s ahead! $SDRC #IdahoMining #CriticalMinerals sidneyresources.com/news/sidney-re…

As an active venture capitalist and CEO of Sidney Resources Corp $SDRC, I’m always evaluating high-conviction opportunities and innovative business models. I just watched this interview with Todd Furniss of @AIAI_Holdings — a “Berkshire Hathaway of AI” playbook: acquiring strong companies with real revenue ($272M base) and deploying transformational AI to scale them rapidly. No selling AI tools — just execution, moats, and results. Valuable insights on operational leverage and tech integration that resonate across sectors, including resources. Watch here: youtu.be/fqjtumlD9os #AIAI #AI #VentureCapital #SDRC #MiningInnovation

$sdrc details matter. This saves $10’a of millions.

To provide clarity, we are working with a lab that works with DARPA. And are very encouraged by our conversation conversations with them.

$sdrc question from an investor and response. We are under a lot of NDA’s right now so it’s hard to share material information. I am very excited for everything that is occurring, and I could not be more encouraged The mining team made huge progress over the last several days and took actions that will save tens of millions of dollars in exploration costs over the next five years These efforts will aid expansion and create more efficiencies moving forward Very grateful to the hard and impactful work @HallySDRC and @wfmining Park consistently doing. Nothing is slowing down and everything is going incredibly well. We have had a ton of people reach out with their gratitude on the roads being opened by our company in the area as well.

@HallySDRC We opened the roads and received a great deal of phrase, locally from individuals and businesses in the area $sdrc

Warren Wagon Road update: We have officially started plowing the Valley County side of Secesh Summit and will be meeting with the Idaho County Commissioners next Tuesday to discuss approval to complete the Idaho County side as well. $SDRC Both County Road & Bridge Departments and the Commissioners have been outstanding to work with, and we are incredibly appreciative of the support we’ve received from the businesses, residents, and visitors of Secesh Meadows and Warren. Real progress happens through cooperative efforts built on the idea that when communities work together, everyone wins. #WarrenIdaho #SeceshMeadows #Idaho #Community #WorkingTogether

While we pursue significant next steps for the future of $SDRC @SDRCMINING we had a Great follow up call with a lab doing work with DOD and DARPA on Thursday. A little of why are in conversation. Iridium (the platinum-group metal) is a strategic/critical material for the U.S. Department of Defense (DOD), with relevance to DARPA’s efforts on supply chain resilience and advanced technologies. “ Key Defense Applications of Iridium Iridium’s extreme properties—highest corrosion resistance of any metal, very high melting point (~2,446°C), hardness, and ability to withstand extreme temperatures and oxidizing environments—make it essential where failure is not an option: • Aerospace and aircraft engines: Iridium alloys harden platinum and are used in high-temperature components that endure extreme heat and stress. • Guided missile systems: Critical for precision components in propulsion or high-reliability environments. • Satellite thrusters and rocket engine nozzles: Iridium-lined combustion chambers and catalyst beds (e.g., for hydrazine thrusters) resist erosion and thermal shock in space propulsion. • High-temperature sensors, thermocouples, and crucibles: For military/aerospace testing and manufacturing under extreme conditions. • Other electronics/radar/semiconductors: Used in spark plugs, backlit displays, computers, and radar screens with military applications. These uses tie directly into DOD platforms (jets, missiles, satellites) and emerging needs like hypersonics or advanced propulsion. Why It’s a Critical Supply Chain Concern for DOD/DARPA • Extreme rarity and low yields: As discussed previously, global mined grades are typically <0.1 ppm, with production ~7–9 tonnes/year dominated by South Africa (Bushveld) and some Russian output. This creates single-point vulnerabilities. ($SDRC has multiple independent assays showing multiple ppm per ton consistently) • DOD/DLA recognition: The Defense Logistics Agency (DLA) Strategic Materials lists iridium explicitly, noting its uses in aircraft engines, missiles, etc. The U.S. has near-total import reliance for PGMs (platinum-group metals, including iridium), with a very small National Defense Stockpile (e.g., historically ~15 kg of iridium). • Geopolitical risks: Supply is concentrated; disruptions (e.g., from South Africa instability or Russia sanctions) could impact defense readiness. PGMs are often flagged in critical minerals assessments for economic and national security. • DARPA’s role: DARPA runs programs like OPEN (Open Price Exploration for National Security) with USGS to improve transparency in critical materials pricing, supply/demand forecasting, and resilience—explicitly including materials vital to DOD. While OPEN focuses more on broader commodities (e.g., rare earths, lithium), it addresses the same class of vulnerabilities affecting iridium/PGMs. DARPA also funds efforts on domestic processing, separation technologies, and resilient supply chains for strategic minerals. In short, iridium’s irreplaceability in high-performance military systems, combined with its tiny production volumes and foreign supply dependence, makes securing its supply chain a national security priority. DOD/DARPA focus on it (via stockpiling, R&D, forecasting, and diversification) aims to prevent disruptions that could degrade capabilities in aerospace, missiles, and space systems. Recycling and efficiency improvements are also key, as primary supply is inherently limited. sidneyresources.com/investors/tech…

$SDRC Proud to be featured alongside mining leaders! Sidney Resources Corporation ($SDRC) has been named Micro-Cap Winner in NAI500’s April Global Mining Power Rankings — alongside @RioTinto ($RIO) in the Large-Cap category and Resource Minerals International (ASX: $RMI) as Small-Cap Winner. In a world where geopolitics is reshaping mining investment priorities, we’re delivering real momentum at our Warren District Project in Idaho. Full story: nai500.com/blog/2026/05/g… #SDRC #Mining #Gold #Exploration #IdahoMining

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$sdrc Passion, purpose, and consistency. #gold

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$sdrc @wfmining - a public message of gratitude to Steve, Guy, Matt, Dan and all of the hard working miners working very hard in harsh conditions I wanted to take a moment to celebrate a major milestone we’ve just achieved underground. Dan has shared the exciting news that, through sheer grit, determination, and by overcoming more than a bit of adversity, the team has successfully reached what is believed to be the interception of the main vein. This is a tremendous accomplishment. Every one of you played a critical role in pushing through the challenges, staying focused, and delivering results when it mattered most. I truly believe that your hard work, resilience, and teamwork will yield incredible results and lead to success in a big way. This interception represents not just technical success, but a true testament to what this team is capable of when we dig deep (literally and figuratively). I’m incredibly proud of each and every one of you. Let’s keep the momentum going as we move into this next phase. Great things are ahead. Thank you again for your outstanding effort. #gratitude #progress #gold #miningstocks #mining

$sdrc #Convergence This geophysical interpretation report from Sidney Resources on the Warren District Project in Idaho is highly encouraging, as it highlights significant exploration potential that could drive future value creation. By analyzing airborne magnetic and radiometric data, the report identifies key geological features suggestive of a large-scale mineral system, particularly gold-related deposits tied to the Idaho Batholith. This positions the company for targeted follow-up work, potentially leading to discoveries that enhance asset value, boost investor confidence, and support stock appreciation. Key Positives: Identification of High-Priority Targets: The report outlines multiple ranked exploration targets based on structural corridors, magnetic anomalies, and radiometric signatures indicating hydrothermal alteration and mineralization. These include major faults, shear zones, and intrusive bodies that align with productive mineral systems seen elsewhere in the region. For the company, this provides a clear roadmap to focus resources efficiently, reducing exploration risks and costs. Shareholders benefit from the prospect of near-term advancements, such as induced polarization (IP) surveys and drilling, which could uncover economically viable deposits and increase the project’s overall valuation. Evidence of District-Scale Potential: Beyond historical vein mining, the data suggests a broader, structurally controlled system with features like potassium enrichment (linked to potassic alteration) and magnetic lows (indicating fluid-altered zones). This implies untapped resources extending across the district, comparable to other successful Idaho Batholith projects. For Sidney Resources, this strengthens their portfolio and competitive edge in the mining sector, potentially attracting partnerships or funding. Shareholders could see long-term upside through expanded reserves, improved market perception, and higher share prices if mineralization is confirmed. Proactive Exploration Roadmap: The company plans immediate next steps, including IP surveys over priority areas, sampling of historical mine waste, and underground drilling on the Lucky Ben Vein to assess continuity and depth potential. This demonstrates strong operational momentum and a data-driven strategy, minimizing delays and building on historical gold production in the area. For shareholders, it signals reduced uncertainty and a pathway to milestones like resource estimates or development announcements, which often catalyze positive stock movements. What It Means Overall: The report essentially validates the Warren District’s geological promise, transforming it from a speculative area into a structured exploration opportunity with scientific backing. It means Sidney Resources is well-positioned to advance toward proving a viable mineral resource, potentially leading to production or acquisition interest in a favorable gold market. For the company, it enhances credibility and operational focus; for shareholders, it represents tangible progress toward value realization, with risks mitigated by integrated geophysical insights. While further work is needed to confirm economics, the findings strongly justify continued investment and optimism about the project’s scalability.

$sdrc the company is Marching forward with clear goals and clear vision.

You mean progress towards the vein intercept? Being featured in Inside mining? Being the top micro cap according to readers/voters by mining.com? Videos showing measurable progress in movement underground toward the vein intercept at our main site ? The completion of staking and claiming 7600 additional acres? Completing a magnetic flyover evidencing high density assets? 100s of assay samples showing high grade material? Having our by-products showing more value than most ore? Collaborating with groups globally? Working with federal agencies and pursuing grants with DoE? Working with a DARPA sponsored lab ? Which positive part was missed? $SDRC and that’s just some of what we’ve done in the last quarter and a half.

@SDRCMINING @SeanRaeZalewski Would like to see some positive news or comments. Shareholders need something to get excited about. Let’s go!!