Small cap wrap: Arizona Gold & Silver, Grey Matters, Montero Mining & Exploration…

Snail Inc (NASDAQ:SNAL) said Tuesday its subsidiary Egofold will debut AI Ranch and NHPs, an artificial intelligence initiative, at the Ai4 2026 conference in Las Vegas this week.

The company described NHPs, or Non-Human Players, as AI companions for video games designed to learn and adapt during gameplay, distinguishing them from traditional non-playable characters or scripted bots.

Montero Mining and Exploration Ltd (TSX-V:MON, OTC:MXTRF) said a new drillhole at its Elvira Gold Project in northern Chile hit strong signs of a gold-bearing hydrothermal system, with pyrite mineralization found at depth.

The hole, MON-ELV-02, was drilled to 625.25 metres and targeted a zone the company flagged as high-priority using geological mapping, geochemistry, geophysics and AI-assisted data modelling.

Grey Matters Health (CSE:GREY, OTCQB:AGNPD, FRA:AGW0) announced that it will be opening its first NovaScan Neuroimaging Clinic in September, marking the start of the company’s planned US expansion focused on brain-specific PET imaging.

The company described the facility as the first of its kind in the US dedicated to providing brain-specific PET scans for the detection of Alzheimer’s disease and other neurodegenerative diseases, including frontotemporal dementia, Parkinson’s disease and Lewy body dementia. The facility will also be used for select neuro-oncology applications.

Pinnacle Silver & Gold Corp (TSX-V:PINN, OTCQB:PSGCF, FRA:P9J) announced that it has identified gold-silver mineralization in previously inaccessible underground workings at its El Potrero property in Durango, Mexico, following rehabilitation and channel sampling.

The company reported that the newly accessible workings, known collectively as Dos de Mayo Norte, extend about 93 metres along the northwest strike of the Dos de Mayo vein and sit approximately 35 metres above the mine’s main level. The workings overlap the main level by about 25 metres, including an area where previous channel sampling identified higher-grade mineralization.

Arizona Gold & Silver Inc (TSX-V:AZS, OTCQB:AZASF, FRA:A9J0) has landed a C$12 million investment from gold major Evolution Mining, which is taking a near-10% stake in the junior to help fund a major drilling push at its Philadelphia Gold-Silver Project in Arizona.

Under the deal, announced Tuesday, Evolution Mining Gold Operations Ltd, a subsidiary of Evolution Mining Limited, will acquire just over 15 million units of Arizona Gold & Silver in a non-brokered strategic private placement at C$0.80 per unit.

Lisata Therapeutics Inc (NASDAQ:LSTA, FRA:8NE) said on Tuesday it has taken decisive action following the termination of its merger agreement with Kuva Labs and its subsidiary Kuva Acquisition Corp, filing suit to protect stockholder interests and moving swiftly to strengthen its financial position.

The clinical-stage pharmaceutical company, which develops therapies for advanced solid tumors, filed the lawsuit in the Delaware Court of Chancery, alleging Kuva breached the merger agreement dated March 6, 2026.

Amplia Therapeutics Ltd (ASX:ATX, OTCQB:INNMF) has signed a clinical collaboration agreement with Eli Lilly and Company to evaluate its lead drug narmafotinib alongside Lilly’s next-generation KRAS G12C inhibitor olomorasib in patients with advanced non-small cell lung cancer (NSCLC).

The planned Phase 1b/2b trial will assess the safety and efficacy of the targeted combination as a second-line treatment for patients with KRAS G12C-mutated NSCLC.

Critica Ltd (ASX:CRI, OTC:VTMLF, FRA:VQI0) has achieved a further significant improvement in the processing flowsheet for its Jupiter Rare Earth Project in Western Australia, reducing sulphuric acid consumption by around 30% under optimised conditions.

The latest results mark the next stage of Critica’s hydrometallurgical optimisation program and demonstrate that acid consumption of approximately one tonne per tonne of feed can be achieved while maintaining strong rare earth recoveries.

Environmental Clean Technologies Ltd (ASX:ECT, OTC:ECTHF) has entered into a binding agreement to acquire 100% of Xenica Materials Pty Ltd, securing exclusive commercial rights to use Flash Joule Heating technology for the production of MXenes and two-dimensional amorphous carbon.

The acquisition represents a major step in ECT’s strategy to build a diversified advanced technology business around the commercial application of Flash Joule Heating, or FJH.

Lumos Diagnostics Holdings Ltd (ASX:LDX, OTC:LDXHF) has received a US$767,800 purchase order for its FebriDx® rapid diagnostic test from US distribution partner PHASE Scientific, marking further progress in the product’s commercial rollout.

The order will be fulfilled progressively through October 2026, with revenue recognised as products are shipped.