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

Olympio Metals (ASX:OLY)

Olympio Metals started diamond drilling at the Dufay project in Canada, testing the Dasserat and Chevrier targets at a depth of 1,600 meters.

Peak Rare Earths (ASX:PEK)

Peak Rare Earths and Shenghe Resources are finalizing transaction documentation for an integrated investment, funding, and development for the Ngualla project in Tanzania. The companies are also assessing the potential impact of draft rare earth regulations published by the Chinese Ministry of Industry and Information Technology on Feb. 19.

Lunnon Metals (ASX:LM8)

Lunnon Metals completed the first of two holes in its diamond drill program at the Kambalda project, co-funded by the Exploration Incentive Scheme under the Western Australian Government's Department of Energy, Mines, Industry Regulation and Safety.

Hammer Metals (ASX:HMX)

Hammer Metals found a strong conductor in the Revenue mine area through a ground-based fixed loop electromagnetic survey. The company's soil surveys conducted last year also identified copper-gold and gold-only targets within its Mount Isa project in Queensland.

Adisyn (ASX:AI1)

Adisyn named current non-executive director Kevin Crofton non-executive chairman, succeeding Shane Wee, who will step down, effective immediately.