Investors are likely to keep an eye on the following small-cap stocks listed on the Australian Securities Exchange.

Echelon Resources (ASX:ECH)

Echelon Resources reported a net increase in gas reserves across its portfolio, primarily due to a 9% uplift at the Mereenie field, following the end of fiscal year reviews with its joint venture operators.

Mitchell Services (ASX:MSV)

Mitchell Services said a Sumitomo subsidiary completed a material equity investment in Loop Decarbonisation Solutions. Sumitomo agreed to acquire up to a 25% stake in Loop through the issue of new shares in exchange for cash.

Asian Battery Metals (ASX:AZ9)

Asian Battery Metals confirmed that fourth-phase diamond drilling will begin at its Oval discovery in Mongolia in September.

Amplia Therapeutics (ASX:ATX)

Amplia Therapeutics said two trial sites in Melbourne and Sydney are now open for its clinical trial exploring the combination of its focal adhesion kinase inhibitor narmafotinib with the chemotherapy FOLFIRINOX in newly diagnosed metastatic pancreatic cancer patients.

Tesoro Gold (ASX:TSO)

Tesoro Gold said recent metallurgical test work results for the Ternera gold deposit at its El Zorro project in Chile confirmed and enhanced previous metallurgy, delivering gold recoveries of over 95% across all grade ranges.