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It is essential to the production of iron and steel. It is a key component of certain widely used aluminum alloys.  It’s considered a Critical Mineral by the U.S. Government, “essential to the national defense,” under the terms of the long-standing Defense Production Act.  And, perhaps most importantly today, it is one of the five battery criticals, with the other four being lithium, cobalt, graphite and nickel.

We’re talking about manganese. It’s certainly not the first metal that comes to mind when we think of EV batteries, and maybe not even the second or third one. It is, however one of the two battery criticals (the other is graphite) for which the United States is currently 100% import dependent.

In the battery segment, manganese serves as a stabilizing component in the EV battery cathode by virtue of its density increasing property. Its addition improves driving range and decreases the combustibility of the battery pack.

The 12th most abundant element is primarily sourced from South Africa, Australia, Brazil, India and Gabon.  As is the case for many critical minerals, China dominates the processing segment with 95% of the chemical refining of battery grade material occurring there. (For an overview of China’s overall battery supply chain dominance followers may wish to refer back to our post from last October featuring a handy graphic by Benchmark Mineral Intelligence.)

Automakers, including Tesla and Volkswagen, have stressed the potential for manganese-based batteries going forward.  With demand for manganese from the battery segment expected to surge ninefold by 2030 according to BloombergNEF, and automakers seeking raw materials deals and pushing for the acceleration of the development of domestic critical mineral materials, prospects for U.S. production are increasing in the context of efforts to reduce supply chain reliance on China.

Efforts to do so are currently underway. Just this week Nevada Silver Corporation, a U.S.-based mineral development company announced that its Minnesota-based subsidiary North Star Manganese received the required permits to commence drilling at its Emily Manganese Project.   Located in the Cayuga Iron Range of Central Minnesota, the Emily District “may contain the largest and highest-grade manganese deposits in the Northern Hemisphere” according to USGS. Drilling has begun and the company has already constructed a processing plant on site.

Further down the development path is the Arizona-based Hermosa Project, owned by major global manganese miner South32’s U.S. subsidiary, which the company calls its first “next generation mine” based on a design that uses automation and targets carbon-neutral mining operations in support of South32’s goal of achieving net zero greenhouse gas emissions by 2050.  Hermosa is “multi-Critical,” hosting not only manganese, but what may be the world’s largest zinc deposit, which is a key material in solar and wind power systems.

With the green energy transition accelerating and demand for EV technology surging, the days when manganese flew under the radar are a thing of the past. Expect to see and hear more about the material going forward, because, as Benchmark Mineral Intelligence’s Simon Moores phrased it last year, manganese represents an “EV supply chain bottleneck that can no longer be pushed into tomorrow by battery and automakers,” and it is encouraging to see that there are domestic developments to improve the supply picture.

 For all the talk about reducing our over-reliance on foreign critical mineral resources against the backdrop of soaring demand, strained supply chains and increasing geopolitical tensions, last week’s release of the annual USGS Mineral Commodity Summaries report still paints a sobering picture.

While the number of metals and minerals for which the U.S. remains 100% import dependent may have dropped by two from 17 to 15, the number of materials for which we are more than 50% or more import dependent has actually gone up over last year.

When cross-referencing the U.S. Net Import Reliance chart with the 2022 Final list of Critical Minerals, the United States was 100% net import reliant for 12, and an additional 31 critical mineral commodities (including 14 lanthanides, which are listed under rare earths) had a net import reliance greater than 50% of apparent consumption.

Recent policy developments, such as the Biden Administration’s invoking of the Defense Production Act (DPA) for the five “battery criticals” — graphite, lithium, cobalt, nickel and manganese –  as well as the rare earths, declared DPA priority materials during the Trump Adminstration, plus the passage of the Inflation Reduction Act, the energy provisions of which contained EV tax credits observers said would send important signals to investors and industry that the U.S. was serious about domestic supply chains, provide hope for a positive change.

But, after decades of dwindling domestic resource production and rising import reliance, no one ever said turning an aircraft carrier this size would be easy.  As Morgan D. Bazilian of the Colorado School of Mines and Gregory Brew from the Jackson School of Global Affairs at Yale University argue in a recent piece for Foreign Affairs, while this general trend represents “welcome and overdue progress, (…) implementing plans to reduce greenhouse gas emissions could be stymied in part by a material obstacle: the procurement of critical minerals such as lithium, cobalt, nickel, and copper that are essential to clean energy systems,” which in their words have so far been “myopic.”

At the same time, as scholars at the Wilson Center’s Environmental Change and Security Center have pointed out, “the Biden administration’s efforts to free up federal funds for domestic mining activities has highlighted the inherent conflict between accessing the minerals needed for climate action and the administration’s commitment to environmental and social justice.” 

Developments like the recent Biden administration halt on progress on the Ambler Road project in Alaska, which proponents say would unlock access to critical minerals and create new jobs, or the cancellation of the two mineral leases held by Twin Metals Minnesota LLC which seeks to mine copper, nickel and other commodities near the Boundary Waters Canoe Area Wilderness, point to conflicting viewpoints between the President’s stated objectives and his Administration’s policy.

This week’s State of the Union Address to both chambers of Congress could have provided important impetus to strengthen critical mineral supply chains. However, while professing that his administration understood the importance of making sure that “the supply chain for America begins in America,” the President’s speech never once referenced the terms “critical minerals,” “mining,” or “processing.”  

That is in spite of the fact that there are promising developments underway – especially for the “battery criticals.”  Over the next few weeks ARPN will be looking at each of these materials, now deemed under President Biden’s DPA determination to be “essential to the national defense,” and the U.S.-based projects working to urgently needed new supply into production.

Let’s start with graphite, one of the materials for which USGS noted an ongoing 100% import dependence this year.

As the key raw material in the battery anode, graphite is the largest component of lithium-ion batteries by weight. In light of “phenomenal demand growth from the EV battery sector and delays to new capacity as well as rising power costs,” the graphite supply chain represents a significant and growing challenge for automakers looking to reduce the carbon footprint of the materials they use for their EVs.

However, that’s not for lack of known graphite resources.  As USGS noted in February 2022 in its updated U.S. Mineral Deposit Database, the Graphite Creek deposit near Nome, Alaska – being developed by Graphite One, Inc. — is America’s largest graphite deposit.

Graphite One recently announced it is cooperating with two U.S. national laboratories under the Department of Energy umbrella in an effort to establish a mine-to-manufacturing all-American graphite supply chain.

In January, the company announced that it had entered into an agreement to have active anode material and other materials sourced from Graphite Creek tested to verify conformity to EV battery specifications by the Pacific Northwest National Laboratory (PNNL).

Aside from these public private partnerships according to Metal Tech News’s Shane Lasley, at least three automakers to date have also taken notice and are currently testing Graphite One material for use in their EV batteries.

In keeping with the new generation of miners looking to harness the materials science revolution to responsibly green our energy future [see ARPN’s post series on mining companies’ sustainability initiatives here], the company is also collaborating with Sandia National Laboratories in New Mexico to explore the lab’s award-winning green extraction methods to recover materials other than graphite from Graphite Creek – providing, in Lasley’s words, an opportunity to “provide an ancillary income stream for Graphite One while maximizing the Alaska deposit’s potential to supply minerals critical to the U.S” or – to use the President’s State of the Union verbiage — an opportunity to make sure that “the supply chain for America begins in America.”

As ARPN recently pointed out,

“If U.S. Government efforts to develop an American-based EV and lithium-ion battery supply chain have any hope of succeeding, looking for ways to help projects like Graphite Creek down the path to production will be, in a word…. Critical.”

Earlier this week, USGS released its latest iteration of the annual Mineral Commodity Summaries, a much-cited report that every year gives us a data-driven glimpse into our nation’s mineral resource dependencies. It’s fitting that ARPN reviews the report on Groundhog Day, February 2nd, because just like in the Bill Murray classic movie, in which the clock jumps [...]

It may not make headlines as much as some of its U.S. Government Critical Minerals List peers, especially the battery criticals lithium, cobalt, graphite, nickel and manganese, and as such you may not have heard much about it — but antimony has entered the spotlight and has garnered the attention of Pentagon planners. After receiving [...]

Happy New Year! For most of us, the first week of January means it’s time to go back to the grind after an extended period of family time, food coma, rest and – hypothetically, at least — reflection.  It also means trying shake the brain fog and mental rust that has settled in order to dive [...]

  2022 surely was as fast-paced a year as they come. Didn’t we just throw overboard our New Year’s Resolutions?  We blinked, and it’s time for another review of what has happened in the past twelve months. So with no further ado, here is ARPN’s annual attempt to take stock of what has happened on the [...]

As the global push towards net zero carbon emissions accelerates, the understanding that critical minerals hold the key to achieving climate goals has grown.   With EV battery technology at the heart of the green energy transition, the “Battery Criticals” (lithium, cobalt, nickel, graphite and manganese) have entered the spotlight.   While initially the main focus was on the cathode materials [...]

We’re “on a highway to climate hell.” The picture UN Secretary General Antonio Gutierrez is painting of current efforts in the climate fight is – expectedly – bleak. As such, it is no surprise that nations have been doubling down on their efforts to reduce greenhouse gas emissions, and the Biden Administration is no exception. Followers of ARPN have [...]

As global leaders direct their focus towards the COP27 climate change summit kicking off in Sharm El Sheikh this upcoming Sunday, pressures on critical mineral supply chains – particularly those for the “battery criticals”underpinning EV battery and energy storage technology — continue to mount. While for some time, much of the “battery critical” focus was primarily on lithium, [...]

It’s Halloween – time for trick or treating, spooky storytelling and scary visuals.  Here’s a real scary one if you’re still looking to frighten the policy wonks among your Halloween party guests. Courtesy of our friends at Benchmark Mineral Intelligence, it’s an infographic that should send a serious chill down policy makers’ spines, and it’s not even gory: While [...]