With more than 600,000 average monthly users on the HotCopper forums, trending discussions can influence market activity. This daily column examines the most actively discussed Australian stocks throughout each trading session.

Mount Ridley Mines (ASX:MRD)

Mount Ridley Mines has reported positive initial results from its ongoing metallurgical testwork program, conducted on historical drill samples from the Grass Patch Complex in Western Australia.

Managing Director and CEO Allister Caird described the results as a pivotal technical milestone, demonstrating the capability of the company's wholly owned Selectro Process to recover heavy rare earth elements (HREE), light rare earth elements (LREE), scandium, and gallium from un-beneficiated Grass Patch material through a single proprietary leach process.

Rare earth elements, scandium, and gallium are each listed on the Australian government's Critical Minerals List, which identifies materials considered strategically important to global supply chains and national interest. The ability to recover multiple critical minerals through a single leach process, if validated at scale, could address a key cost bottleneck that has historically constrained development of polymetallic deposits in Australia.

"These are the first metallurgical testwork results the company has produced since the definition of our HREE, scandium and gallium mineral resources and the establishment of the current management team and corporate strategy," Caird said.

"The Selectro process results validate what we believed to be true about Grass Patch, that we have a genuinely polymetallic system where all three critical minerals can be recovered from a single leach process. We look forward to providing further updates in due course."

MRD shares closed up 32.0% at 3.3¢.

Pathkey.AI (ASX:PKY)

Pathkey.AI announced the appointment of Sam Weiss as strategic advisor to the CEO and Chipforge team.

Weiss served as non-executive chairman of ASX-listed Altium from 2007 to 2024, overseeing the company's expansion from a Sydney-based software firm to a global leader in printed circuit board design software. His tenure as chairman concluded with the acquisition of Altium by Japanese semiconductor company Renesas Electronics for approximately $9.1 billion in cash. That deal ranked among the largest acquisitions of an ASX-listed technology company and underscored growing international demand for electronic design and semiconductor-related intellectual property.

The company also confirmed it had received firm commitments to raise $2,800,000 through a strategic placement to institutional and sophisticated investors. The placement was cornerstoned by Weiss.

PKY shares rose 22.6% to 3.8¢ at the time of publication.

Elixir Energy (ASX:EXR)

Taroom Trough gas explorer Elixir Energy received firm commitments for a share placement to existing and new investors, raising $5 million to fund its Queensland gas drilling program.

The capital will support downhole pressure monitoring, technical works, and observation of the Lorelle-3H well during its 60-day soak period, followed by costs to recommence flowing the well. Funds will also cover data gathering and evaluation of the well, post-flow performance analysis, and engagement of independent reserve certifiers.

The Taroom Trough is an emerging gas province in Queensland's Surat Basin region, where multiple operators have accelerated exploration activity amid sustained policy focus on new east coast gas supply. The federal government has designated gas as a critical transition fuel, and regulators have repeatedly flagged potential near-term supply gaps for Australia's southern states.

Managing Director and CEO Stuart Nicholls stated that the raising strengthens the company's balance sheet at a critical juncture for the Taroom Trough, where industry interest is at an unprecedented level and collective work is advancing rapidly toward commercial development.

"Elixir holds the largest land position across every known and tested play in the Trough, and that position is attracting significant external attention. Now is the right time to assess the full range of paths available to convert this into shareholder value," Nicholls said.

"Over the coming period, we'll be evaluating those options while continuing our planned well testing across our Taroom portfolio."

EXR shares declined 10.0% to 4.5¢.

Broader Market

The S&P/ASX 200 was lower in morning trade, declining 54.30 points, or 0.59%, to 9,196.30. The index's worst performers were Seek (ASX:SEK) and Premier Investments (ASX:PMV), which fell 13.81% and 8.63% respectively. The index has lost 0.34% over the past five trading days but remains 1.08% below its 52-week high.

Census Update

The Australian Bureau of Statistics (ABS) reported that as of midnight, it had received more than eight million household Census forms — both online and on paper — with well over two-thirds of households having responded.

"The Census is an incredibly important exercise for our nation," said Australian Statistician Dr. David Gruen. "The data we collect through the Census is used to plan and deliver vital services, help businesses grow, and support local communities."

"Each person's response contributes to building a snapshot of modern Australia, who we are and where we are going," Dr. Gruen added.