Guess which ASX mining share just exploded 48% on a major copper discovery

The ASX mineral explorer has delivered some exciting news to the market today.

| More on:
A mining worker clenches his fists celebrating success at sunset in the mine.

Image source: Getty Images

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More

Key points

  • The American West share price surged this morning after the company announced a potential major copper discovery in Canada
  • The junior ASX miner said one of its drill holes intersected over 68 metres of stratiform copper sulphide mineralisation
  • This style of geology is similar to other major copper deposits and management is hopeful that testing of six other large EM plates will confirm its suspicions

The market might be under pressure today but there's one ASX mining share that's surging ahead this morning on positive drill results.

The outperformer is the American West Metals Ltd (ASX: AW1) share price. It jumped 48% to a high of 18.5 cents this morning, its highest since May, before retreating to trade at 15.5 cents at the time of writing. That's still a 24% gain on yesterday's closing price.

In contrast, the All Ordinaries Index (ASX: XAO) is 0.52% lower as the August reporting season rolls on.

The small ASX mining share in the spotlight

American West is stealing some of the spotlight today after it announced a major copper discovery at its Storm Project in Canada.

Its drill hole (ST22-10) intersected over 68 metres of stratiform copper sulphide mineralisation from a 277-metre downhole.

This is significant, according to the small cap ASX mining share. It noted that the discovery is associated with an 800m by 300m electromagnetic (EM) plate, with six other similar large EM plates yet to be tested.

Details of the drilling result from this ASX mining share

The mineralisation is interpreted to be stratiform and is hosted within a vuggy, bituminous, and fossiliferous carbonate unit.

This is consistent with the typical mineralisation model for sedimentary copper systems. This style of permeable host rocks could form chemical traps for the deposition of copper-rich fluids.

The ASX mineral explorer was quick to point out that many other large copper systems have similar geology.

What American West is saying

The managing director of American West Dave O'Neill said:

This is a game changing discovery at the Storm Copper Project. Exploration drilling has intersected stratiform copper sulphide mineralisation at depth which supports our geological assumptions that there is a major copper system lying below the high-grade near surface mineralisation.

The new copper mineralisation is associated with a large EM plate that is one of six untested plates, most of which are located in highly prospective positions – below or adjacent to the known high-grade copper prospects and fault system

The American West share price snapshot

The surge in the American West share price today pushes the ASX mining share to a gain of more than 10% for the year.

That's well above the All Ordinaries, which has shed around 7% over the same period, and the S&P/ASX 300 Metal & Mining index, which inched up 2.1%.

Other ASX copper miners have turned in mixed performances. The Sandfire Resources Ltd (ASX: SFR) share price has fallen 15%, while the OZ Minerals Limited (ASX: OZL) share price is up 21% in the past 12 months.

American West is a junior explorer with projects in Canada and in Utah, USA.

Should you invest $1,000 in Charter Hall Group right now?

Before you buy Charter Hall Group shares, consider this:

Motley Fool investing expert Scott Phillips just revealed what he believes are the 5 best stocks for investors to buy right now... and Charter Hall Group wasn't one of them.

The online investing service he’s run for over a decade, Motley Fool Share Advisor, has provided thousands of paying members with stock picks that have doubled, tripled or even more.*

And right now, Scott thinks there are 5 stocks that may be better buys...

See The 5 Stocks *Returns as of 30 April 2025

Motley Fool contributor Brendon Lau has positions in OZ Minerals Limited and Sandfire Resources NL. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has no position in any of the stocks mentioned. The Motley Fool Australia has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

More on Share Gainers

Person pretends to types on laptop drawn in sand.
Share Gainers

Here are the top 10 ASX 200 shares today

ASX investors had a rough start to the week today.

Read more »

A person in a gorilla suit leaps really high holding a banana, nearly doing the splits.
Share Gainers

Up 1,238% in a year, why is this ASX gold stock surging again on Monday?

The ASX gold stock is now well into ten-bagger range and still rising fast today.

Read more »

A happy investor sits at his desk in front of his laptop and does the mexican wave with his arms to celebrate the returns from his ASX dividend shares
Share Gainers

Why EOS, Gorilla Gold, Lendlease, and OFX shares are charging higher today

These shares are starting the week on a positive note. But why?

Read more »

A woman in a business suit sits at her desk with gold bars in each hand while she kisses one bar with her eyes closed. Her desk has another three gold bars stacked in front of her. symbolising the rising Northern Star share price
Gold

How this ASX All Ords gold stock turned $10,000 into $78,740 in just one year

The ASX All Ords gold miner has raced higher over the year. Let’s find out how.

Read more »

Ten happy friends leaping in the air outdoors.
Share Gainers

Here are the top 10 ASX 200 shares today

Investors enjoyed a happy end to the trading week this Friday.

Read more »

A woman wearing yellow smiles and drinks coffee while on laptop.
Bank Shares

CBA shares top $170. Where to now?

Another day, another record high for CBA shares.

Read more »

Two people jump and high five above a city skyline.
Share Gainers

Why these 5 ASX 200 stocks are racing higher this week

It’s been a stellar week for these five ASX 200 stocks. But why?

Read more »

Two happy excited friends in euphoria mood after winning in a bet with a smartphone in hand.
Share Gainers

Why Appen, Aspen, Catalyst Metals, and Core Lithium shares are racing higher today

Let's see why these shares are roaring higher today and ending the week on a high.

Read more »