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重矿物砂正悄然改写稀土供应链

Heavy Mineral Sands Are Quietly Rewriting Rare Earth Supply Chains

IEEE Spectrum 原文署名:Glenn Zorpette原文发布:2026年10月15日 22:53 · 北京时间

以下为原文逐段中文翻译,保留图表与说明。AI 翻译并经 AI 对照复核,仍可能存在错误;核对数据和引用时请同时查看原文。译文发布:2026年10月17日 06:30(北京时间)。

莱纳斯稀土公司(Lynas Rare Earths)位于西澳大利亚的韦尔德山(Mount Weld)矿含有大量独居石矿石。

全球为打破中国在关键稀土市场主导地位而展开的行动,正逐渐成为21世纪初标志性的地缘战略博弈之一。散布在北美、澳大拉西亚和欧洲的数百家矿业公司、政府机构和工业设施正努力从中国企业手中夺取份额,后者控制着约90%的稀土氧化物和稀土金属市场。

稀土是众多庞大而关键的制造业类别所依赖的原料:半导体、LED、激光器、显示器、金属合金、光学镜片,以及用于石油和化工加工的催化剂。但最重要的是永磁体。几乎所有大功率电动机都基于稀土永磁体。这些电机是电动汽车、供暖和制冷系统、机器人、家电和工具的核心。从战术无人机到弹道导弹潜艇,军用系统的电机中也含有稀土磁体。

简而言之,任何想要在关键高科技产业中保持竞争力的工业强国,都必须能够获得稀土元素或基于稀土的产品稳定供应。这些元素源自中国的传统供应链正变得越来越令人担忧——以至于一些分析人士开始使用“矿产战争”这一说法。如今正争先恐后地拼凑替代供应链的国家,无论是独自努力还是彼此合作,都面临艰巨的困难。更不用说中国稀土巨头的强大势头了。很少有行业能像稀土行业那样充满不稳定、风险、暗箱操作和十足的挫败感。

然而,许多稀土专家看到了一条前进之路,它取决于一种特定的矿石——独居石。这种矿石含有大量宝贵的稀土,包括钕、镨和镝。

“未来属于独居石,”分析师、顾问兼作家杰克·利夫顿(Jack Lifton)宣称。利夫顿自1962年以来一直在研究稀土行业,见证过无数趋势、公司和技术的兴衰,他并不喜欢发表笼统的论断。但在独居石这个问题上,他持乐观态度。“在我看来,独居石目前是最重要的稀土矿石,”利夫顿说,他同时也是关键矿产研究所(Critical Minerals Institute)的联席主席,该组织致力于推动建立北美供应链。

相关报道:追逐中国的独居石垄断

利夫顿和其他人很快就承认,这条前进之路不会平坦顺遂。独居石通常含有放射性的钍和铀,这意味着它的处理、储存和加工受到政府机构的严格监管。它只能通过特殊的技术和程序进行加工,而加工过程中产生的弱放射性废物必须无限期地隔离储存。

尽管如此,如今大量投资正涌向独居石矿和加工技术。在美国,运营着该国唯一常规铀厂的能源燃料公司(Energy Fuels)已开发出自己的提取工艺,正在生产钕镨混合氧化物——以及中试规模的镝和铽氧化物,这两种关键重稀土在其他情况下几乎只在中国生产。

一处由工业建筑群和大型地上储罐组成的设施群的鸟瞰图,附近有一个大型人工水池。
图表来源:原始发布机构

能源燃料公司正在其位于犹他州东南部的白台地工厂(White Mesa Mill)将独居石加工成稀土氧化物。图中左侧的水体是一座尾矿库,加工产生的放射性废物就储存在那里。能源燃料公司

该公司已花费超过2亿美元在巴西和马达加斯加获取独居石资产,并计划以约4.1亿美元的成本将其稀土产量扩大到更高的商业水平。6月,能源燃料公司的稀土雄心获得了重大提振,当时特朗普政府宣布已与该公司签署了一项7.25亿美元的有条件贷款承诺。

然而与此同时,加拿大萨斯喀彻温省一个由政府支持的项目,对独居石支持者而言是一个警示性的案例。经过六年的建设和超过1亿加元(7,200万美元)的支出,那里的一个加工厂仅生产出极微量的稀土。这座由萨斯喀彻温研究委员会(Saskatchewan Research Council)建造的加工厂,原本应在2024年底前每月生产40吨稀土。但那并没有发生。年产400吨金属的“全面运营”原计划在“2025年初”实现。那也没有发生。该机构现在的目标定在2027年底——据萨斯喀彻温研究委员会首席执行官迈克·克拉布特里(Mike Crabtree)称,到那时该项目的成本将超过2.16亿加元。

在北美以外,阿斯顿有限公司(Astron Limited)、黑斯廷斯科技金属公司(Hastings Technology Metals)、伊鲁卡资源公司(Iluka Resources)、姆坎戈资源公司(Mkango Resources)、主权金属公司(Sovereign Metals)、斯滕坎普斯克拉尔控股公司(Steenkampskraal Holdings)和特诺公司(Tronox)等也规划了大型独居石项目。总部位于澳大利亚珀斯的莱纳斯稀土公司是中国以外最大的稀土公司,正在扩大其独居石开采和加工业务。最引人注目的是莱纳斯位于澳大利亚韦尔德山的矿,它是世界顶级的独居石资源之一;矿石在马来西亚一个占地广阔的设施中加工。

当然,对中国以外的国家而言,所有这些激增的活动并不能保证它们走上稀土独立的道路,甚至相差甚远。因此,现在至关重要的问题是:还需要发生什么,才能拓宽并使稀土供应链多元化?而这一切能否安全地完成?

独居石矿石有哪些优势?

地球拥有两种不同形式的巨量独居石矿石。在澳大利亚、加拿大、中国和南非,大量独居石矿藏以贯穿山脉和火山口的坚硬岩脉形式存在。然而,对独居石的新兴趣很大一部分集中在第二种类型上,即所谓重矿物砂。这些砂是数千万年暴露于风、水和重力之下、将富含矿物的岩石侵蚀成颗粒,然后堆积在沿海地区或河床边而形成的。

海浪拍打在一片黑色和棕色沙滩上。
图表来源:原始发布机构

一种特别理想的独居石矿石形式存在于重矿物砂中,比如巴西某处海滩上的这些砂。Travel Pix/Alamy

在这些颗粒中,独居石相对坚硬且化学性质惰性。独居石可能只占重量的百分之几,但它通常含有45%至70%(按重量计)的稀土,在许多情况下包括制造磁体所需的全部稀土:钕、镨、镝和铽。

“你能在任何地方找到的稀土元素分布最好的,就是独居石,”Neo Performance Materials 前首席执行官、现为多家稀土公司董事或顾问的康斯坦丁·卡拉扬诺普洛斯(Constantine Karayannopoulos)说。“真正的钱就在这四种元素里。”镝和铽都属于重稀土,尤其受追捧,而通常最常开采的稀土矿石——氟碳铈矿——中通常不含它们。

在澳大利亚、巴西、印度、马达加斯加、莫桑比克和南非,有大量含独居石的重矿物砂矿藏,而中国、爱达荷州、印度尼西亚、马来西亚、斯里兰卡、泰国、美国东南部和越南也有较小的矿藏。

一名身穿白色外套、头戴头盔的男子指着地下洞穴中棕色岩石里的深色矿脉。
图表来源:原始发布机构
深色岩石的样本用白色字符标注。
图表来源:原始发布机构

一名地质学家指出南非斯滕坎普斯克拉尔矿中硬岩独居石矿石的深色矿脉 [顶图]。该矿的矿石样本被采集用于分析 [上图]。Rodger Bosch/AFP/Getty Images

此外,采集这种矿石只需对砂进行疏浚或露天开采,而不像获取硬岩矿石那样需要爆破、钻探和大量土方搬运。而且,这些砂已经是颗粒状,因此不需要像岩石矿石那样被压碎或磨碎。从砂中分离出重矿物通常可以在矿场使用相对廉价的磁选或重选技术完成,留下品位相对较高的精矿以供进一步加工。

现在说说重矿物砂的坏消息。“问题在于它们往往含有大量钍,”而钍具有弱放射性,密苏里州稀土咨询公司 ThREE consulting 总裁詹姆斯·肯尼迪(James Kennedy)说。他说,使用这些砂时“钍是唯一最大的问题”。“如果你开采和加工独居石以获取稀土,每个加工设施最终都会产生成百上千吨、最终是数千吨的含钍放射性残渣。”他说,钍的唯一市场只有焊接棒和一些光学器件这两个很小的市场,所以“你必须把它储存起来。”而根据美国核管理委员会和国际原子能机构制定的核材料规则,任何没有既定用途或处置途径的储存放射性材料都被视为核废料。“因此,[放射性]负债会突然远远超过你所开采和出售的任何东西的价值,”肯尼迪说。

情况并非一直如此。直到20世纪50年代,独居石一直是开采稀土的主要矿石。各公司加工来自澳大利亚、巴西和印度的重矿物砂以及来自南非的硬岩,以生产用于曳光弹、钢合金、打火机火石以及后来彩色电视荧光粉的稀土。

沙漠环境中露天矿边缘的一小片工业建筑群,背景是山。
图表来源:原始发布机构

位于加利福尼亚的芒廷帕斯(Mountain Pass)矿及加工厂是美国唯一的大型稀土生产设施。David McNew/Getty Images

若干发展因素共同作用,使稀土生产从独居石转向氟碳铈矿。1949年,在加利福尼亚的芒廷帕斯发现了巨大的氟碳铈矿矿藏。到20世纪60年代初,氟碳铈矿已取代独居石成为主要的稀土矿石。20世纪90年代,随着稀土生产转向中国,向氟碳铈矿的转变仍在继续,因为中国开发了大量矿藏,例如牦牛坪的矿藏,这些矿藏要么完全是、要么大部分是氟碳铈矿。

然而如今,中国以外稀土生产的任何复苏可能都取决于独居石的复兴,一些观察人士正在认真审视那些管控钍以及独居石加工其他副产物处理的严格法规。肯尼迪坚持认为,除非各国政府现在就采取行动,否则这些法规将扼杀中国以外世界的稀土雄心。

“你只要把围绕钍的法规合理化,就能终结美国的稀土危机,”他宣称。“你会把稀土从一种总是稀缺的东西,变成一种常见、只是自然地从其他采矿活动中产出的东西。”

如何利用“废物”扩大稀土加工规模

肯尼迪构想的一个典型例子已存在于总部位于科罗拉多州莱克伍德的能源燃料公司。它是美国唯一获得许可加工、处理和储存铀化合物的公司,也是极少数获得许可储存任何种类放射性材料的公司之一。这些许可使能源燃料公司成为唯一获准加工独居石矿石以提取其稀土的美国实体,从而与众不同。

在一个工业仓库里,一名身穿蓝衬衫、头戴灰色安全帽和太阳镜的男子引导一个巨大的白色袋子落到一个木制平台上。
图表来源:原始发布机构

在能源燃料公司的白台地工厂,装有1吨钕镨氧化物的“吨袋”被装上托盘。能源燃料公司

该公司正积极行动以利用这一独特优势。能源燃料公司的主营业务仍然是铀——去年它生产了近500吨铀。但在对其位于犹他州白台地工厂(它在那里也加工铀)的一个小型稀土加工设施进行了2,200万美元的适度投资后,该公司已经开始销售稀土氧化物。2025年9月,该公司宣布已向总部位于韩国的浦项国际公司(POSCO International Corp.)出售了1.2吨钕镨氧化物,后者是电动汽车电机永磁组件的领先制造商。大约同一时间,能源燃料公司披露又筹集了7亿美元。

2025年12月,该公司宣布已生产出少量镝氧化物。电机磁体需要微量的镝,以确保它们在高温下仍能正常工作。如今,世界上几乎所有的镝都来自中国。

能源燃料公司称,它可以在白台地工厂每年生产1,000吨稀土氧化物。但其在那里的稀土生产目前与铀业务共用设施,因此两者不能同时生产。它的独居石来自化工公司科慕(Chemours),后者在佛罗里达州和佐治亚州开采重矿物砂以生产钛和锆。卖给能源燃料公司的独居石矿石,是科慕提取出它所需的矿物——即钛铁矿和锆石——之后剩下的东西。

一个类似起重机的结构高耸在一大堆灰色砂之上。
图表来源:原始发布机构

化工公司科慕在美国佐治亚州 [见此处] 和佛罗里达州的矿区开采重矿物砂。从砂中提取的独居石出售给总部位于科罗拉多州莱克伍德的能源燃料公司,后者将矿石加工成稀土氧化物。科慕

“实际上,独居石就是废物,”卡拉扬诺普洛斯指出。“所以你无需再挖一座矿”来生产它们。

科慕和能源燃料公司签有协议,根据协议,科慕每年向白台地工厂运送500吨独居石。能源燃料公司还在谈判或已经达成协议,使其能够获得澳大利亚、巴西和马达加斯加巨量的独居石矿石储量。这些对于它成为世界级稀土氧化物供应商的雄心至关重要。

一名戴着角质边框眼镜、身穿蓝衬衫、头戴安全帽的男子站在一处矿区。
图表来源:原始发布机构

能源燃料公司前首席执行官马克·查默斯(Mark Chalmers)带领这家铀公司进军稀土业务。Jesse Rieser/The New York Times/Redux

“我们在下一盘长棋,”最近从能源燃料公司首席执行官职位退休、现为公司顾问的马克·查默斯说。他在一次采访中说:“我们目前正在为一座更大的设施做工程设计,该设施将具备每年生产多达6,000吨”稀土氧化物的能力。作为对比,莱纳斯稀土公司在最近一个财年生产了约12,000吨稀土氧化物。

在宣布与能源燃料公司达成7.25亿美元有条件贷款承诺时,美国国防部战略资本办公室(Office of Strategic Capital)表示,这笔交易将帮助能源燃料公司扩大稀土氧化物的产量,并帮助实现该公司将氧化物转化为金属的计划,这是磁体制造之前的一个关键步骤。

稀土供应链存在哪些风险?

要了解独居石项目可能出什么问题,不妨看看加拿大萨斯卡通的项目,萨斯喀彻温研究委员会(SRC)在那里建造并示范了一座从独居石矿石生产稀土氧化物的中试工厂。这是该国唯一的稀土提取和分离工厂。一位发言人在电子邮件中表示,该工厂“计划于年底前投产,经过一段产能爬坡期后,将在2027日历年内投入运营。”在“全面运营”时——具体时间该发言人未予说明——该工厂的年产能将在400至600吨稀土金属之间。

但即便是这样相对适中的产量,也将取决于独居石能否获得可靠的供应或“原料”。在这个规模小到许多高层人士都彼此直呼其名的行业里,SRC 无法确保这样的供应已是一个公开的秘密。“他们的问题是原料不够,无法持续运转,所以他们只是在做样品试运行,”一位人脉广泛的行业观察人士告诉《IEEE Spectrum》。(SRC 拒绝为本文安排官员置评。)

2024年4月,SRC 宣布已与一个越南组织——兴盛集团(Hung Thinh Group)——达成协议,在五年内每年供应3,000吨稀土碳酸盐。目前尚不清楚这些原料中有多少运抵了 SRC 的设施。越南政府对独居石和氟碳铈矿出口的限制自2022年起就已生效,并于今年1月成为法律。

但这里真正的转折在于,世界上最大、品位最高的独居石矿藏之一,距离萨斯卡通仅800公里,位于萨斯喀彻温省的阿尔塞斯湖(Alces Lake)附近。SRC 的设施很可能就是本着这一独居石矿藏而构想和建造的。毕竟,作为一家政府所有的实体,SRC 表示其使命是“帮助萨斯喀彻温省人民通过优质就业和安全的环境来增强经济。”

阿尔塞斯湖矿藏归阿皮亚稀土与铀业公司(Appia Rare Earths & Uranium Corp.)所有。在一次采访中,阿皮亚的首席执行官汤姆·德里瓦斯(Tom Drivas)大谈 SRC 与阿皮亚之间建立联系的可能性。“SRC 会是我们合乎逻辑的选择,因为你知道,它在同一地区、同一个省。他们需要独居石。如果我们能供应独居石,那算是顺理成章,对吧?”

不过这很可能不会发生。稀土开采的逻辑与开采诸如铜这类大宗商品的逻辑截然不同。《Spectrum》联系的多位专家认为,在阿尔塞斯湖开发一座独居石矿的成本,包括道路、电力和水等必要基础设施,将高达数亿美元。这样的成本,加上稀土市场变化无常的紧迫需求,使萨斯喀彻温省政府不太可能投入那样的资金,即便有加拿大联邦政府的帮助也是如此。这些因素有助于解释为什么加拿大——它拥有地球上一些最诱人的稀土矿石矿藏,以及令人瞩目的矿业公司和资源——却没有在运营的稀土矿。

与此同时,SRC 正在寻求其他选择。根据5月宣布的一项与位于俄亥俄州尤克里德的 REalloys 达成的协议,REalloys 将斥资2,060万美元对 SRC 的萨斯卡通设施进行升级,而 SRC 则开发从稀土氧化物生产稀土金属的技术。该协议还赋予 REalloys 购买 SRC 工厂多达80%产量的权利。原料将从何而来?很难说,但 REalloys 还与美国关键材料公司(U.S. Critical Materials Corp.)达成协议,获得蒙大拿州绵羊溪(Sheep Creek)一处拟建矿山假设产量的10%。据报道,绵羊溪拥有大量硬岩独居石,其钍含量异常低。但这些矿藏是否真会被开采还远不确定。在那里开发矿山的提议——位于比特鲁特河(Bitterroot River)源头附近一片风景令人叹为观止的地区——已招致环保组织、户外爱好者和地方官员的强烈反对。

综合来看,SRC 近期的举动让业内资深人士感到困惑。“我不确定他们的商业模式是什么,”一位人士说。“他们说,‘我们是研究机构。我们的使命是帮助产业。’但现实是,他们在与产业竞争。”

SRC 还因一些有问题的商业做法而受到审视。2022年,SRC 董事会成员丹尼斯·菲茨帕特里克(Dennis Fitzpatrick)在提出对一名受聘管理和指导 SRC 萨斯卡通工厂运营的工程师资质的担忧后被解雇。当时 SRC 的总裁兼首席执行官迈克·克拉布特里(Mike Crabtree)负责这次聘用。加拿大广播公司(Canadian Broadcasting Corp.)随后对菲茨帕特里克的说法进行的调查,详细披露了围绕 SRC 稀土计划的一张令人不安的关系和做法之网。(菲茨帕特里克没有回复多封电子邮件。)例如,据报道,克拉布特里过去的商业伙伴被任命到有实权的职位,却没有考虑任何其他候选人,也没有公开他们与克拉布特里的关系。

在2021年的一起案例中,克拉布特里披露,他向一家风险投资公司西桥资本(Westbridge Capital)提供了投资该稀土工厂的机会。但据菲茨帕特里克称,克拉布特里从未提到,这家风投公司由一名 SRC 董事会成员经营,而此人恰好也是克拉布特里的商业伙伴之一——也没有提到克拉布特里本人是西桥的受托人、该公司的投资者,同时还是一名有偿顾问。

克拉布特里仍担任 SRC 的首席执行官。

管理稀土产生的有毒副产物

撇开 SRC 的失误不谈,该机构确实有一项优势:它持有加拿大核安全委员会颁发的多项许可证,可处理、加工和管理放射性材料。而这是巨大的优势。

与加工独居石矿石相关的大部分放射性负担,来自加工过程中产生的物质。在早期的步骤之一中,粉碎成粉末状的矿石被干燥,然后在强酸中浸出——这一过程称为“分解”(cracking)——以产生稀土精矿。这一步骤的废物包括一种含有氢氧化钍的矿浆,以及数量少得多的氢氧化铀。稀土精矿随后经过提取过程,以分离出特定的稀土,例如钕或镝。在这些步骤中会产生更多的钍以及镭。

蓝天之下,沙地中堆放着三层高的灰色桶墙和几个绿色桶。
图表来源:原始发布机构

2024年,废料桶在能源燃料公司的白台地工厂被拍摄下来,那里加工和精炼含铀和稀土的矿石。Jesse Rieser/The New York Times/Redux

与此同时,氢氧化钍矿浆通常被存放于受到严格监管的废物单元中,称为尾矿库或尾矿池。氢氧化钍,无论以矿浆还是粉末形式,都必须无限期地与环境隔离储存。能源燃料公司将其长期铀生产业务以及新稀土业务的废物,储存在其白台地工厂的尾矿库中。这些尾矿库距离尤特山尤特部落(Ute Mountain Ute Tribe)——一个原住民族群——的社区中心仅10公里,该部落20多年来一直强烈反对白台地工厂的运营。

几乎所有的钍都是同位素钍-232,其放射性很弱。它释放的是α粒子,无法穿透人的皮肤。尽管如此,储存不当仍可能造成严重后果,尤其是当钍被吸入或摄入时。

“看看尼日利亚重矿物砂的重力分选吧,”稀土顾问兼分析师托马斯·克吕默(Thomas Kruemmer)在一封电子邮件中写道。“尼日利亚的加工现场有大量粉尘,工人们不可避免地会吸入。而在你的呼吸系统内部没有任何保护性的皮肤,所以α辐射会充分发挥其威力。这是许多人没有考虑到的事情。”

人们举着标语游行抗议。
图表来源:原始发布机构
一座带中央塔楼的工业工厂。
图表来源:原始发布机构

2012年,马来西亚的抗议者 [顶图] 集会反对莱纳斯稀土加工设施 [上图],该设施当时正在关丹附近建设中。左:AFP/Getty Images;右:Goh Seng Chong/Bloomberg/Getty Images

此外,克吕默补充说,“问题不在于钍本身。高度放射性的是钍的衰变同位素。”他指出,钍的一种衰变产物是钋,“那是[用来杀害]俄罗斯异见人士的首选毒药。”

1982年,一家名为亚洲稀土(Asia Rare Earth)、隶属三菱化学(Mitsubishi Chemical)的公司开始在马来西亚霹雳州从独居石矿石中提取钇。当地居民很快开始抱怨各种疾病。经马来西亚政府同意,该公司修建了一条通往附近处置场的废物通道,废物被储存在敞口钢桶和一个未做防渗处理的废物池中。每逢大雨,废物就会从池中溢出。1984年,一位日本教授测量了该池及其附近的辐射水平,发现最极端的情况下比国际公认的上限高出数百倍。随后的一项调查在废物堆放场附近的小社区中发现了极高比例的出生缺陷和八例白血病。

一名黑发女子身穿浅色印花长裤套装,俯身靠近她已成年的儿子,儿子抬头看着她。
图表来源:原始发布机构
透过一道大门的竖直栅栏可以看到一座工业工厂。
图表来源:原始发布机构

2011年,69岁的赖群(Lai Kwan)准备给她29岁的儿子谢国良(Cheah Kok Leong)洗澡 [顶图]。谢国良出生时患有严重的精神残疾,赖群认为这是她在马来西亚武吉美拉(Bukit Merah)一家稀土加工厂工作时受到的辐射所致 [下图,拍摄于该厂拆除期间]。Rahman Roslan/The New York Times/Redux

当地居民与亚洲稀土公司以及马来西亚政府之间旷日持久的法律斗争,最终导致该工厂于1992年关闭。到那时,被随意倾倒的放射性材料如此之多,以至于清理工作耗时二十多年,并让三菱付出了约1亿美元的代价。这一事件至今仍困扰着马来西亚的稀土行业,莱纳斯如今在那里运营着世界上最大的稀土加工设施,加工独居石精矿。该工厂位于彭亨州关丹,早在2012年投产之前,就已成为当地有组织、积极反对的对象。马来西亚政府不时收紧对该工厂的监管,规定例如放射性废物必须运出马来西亚,或者产生放射性残渣的加工环节必须在马来西亚境外完成。

肯尼迪指出,如果独居石矿石要成为稀土的主要来源,就需要处置数量大得多的钍,很可能超出了带防渗衬层且隔离的尾矿池在经济上所能容纳的量。

利用如此大量钍的极少数选项之一涉及核电。多年前,包括美国、加拿大、挪威和德国在内的国家都曾开展钍反应堆研究计划,而印度数十年来一直有一个进展缓慢的计划。但如今,唯一在运行的钍动力反应堆在中国。中国科学院上海应用物理研究所自2023年以来一直在运行一座以钍为燃料的2兆瓦熔盐冷却反应堆。

四名身穿白大褂、头戴蓝色帽子的工作人员使用机械操纵器,在一扇厚玻璃窗后处理样品。
图表来源:原始发布机构

世界上唯一在运行的钍反应堆是中国科学院上海应用物理研究所的一座2兆瓦机组。2025年10月,技术人员使用机械臂分析该反应堆熔盐燃料的样品。Jin Liwang/Xinhua/Getty Images

几家西方初创企业让钍反应堆之梦得以延续。一家名为 Thorizon 的法荷合资公司称,它已设计出一种以钍和乏核燃料混合物为燃料的反应堆。初创公司哥本哈根原子能(Copenhagen Atomics)正在研制一座1兆瓦反应堆,它是100兆瓦、可大规模量产的熔盐反应堆的原型。

独居石矿石的加工可以在遥远的未来为大量钍反应堆提供燃料。设想一座每年生产5,000吨稀土氧化物的大型设施。如果独居石含7%的钍,该工厂每年还将生产约700吨钍。据得克萨斯州阿比林基督大学(Abilene Christian University)教授、在该校主持一个先进反应堆项目的拉斯蒂·托威尔(Rusty Towell)称,1吨钍足以发电约350兆瓦(电力)一年。因此,仅这座大型加工设施每年产生的钍,就足以让2,450座100兆瓦反应堆运行一年。

这一发电量——245吉瓦——约相当于美国未来十年预测的全部新增发电装机容量的一半,分析人士预计,在这段时期内,由于数据中心和电动汽车数量不断增加,电力增长将加速。

什么可能扼杀稀土供应链?

几乎所有稀土专家都预见独居石将发挥越来越大的作用。但鉴于钍的问题、一些项目遭到当地反对,以及与另一些项目相关的政治不稳定,一些人的期望有所降低。“恕我直言,独居石唯一的希望就寄托在伊鲁卡在澳大利亚那个昂贵的项目上,”克吕默写道。总部位于珀斯的伊鲁卡资源公司目前正在珀斯以北275公里的伊尼巴(Eneabba)建造一座大型稀土精炼设施。它将加工该公司其他采矿业务数十年来积累的100万吨独居石库存。该项目的成本估计为18亿澳元(约13亿美元)。

一座工业工厂及其远处一大堆深棕色砂的鸟瞰图。
图表来源:原始发布机构

在一个耗资13亿美元的项目中,伊鲁卡资源公司正在澳大利亚伊尼巴建造一座大型设施,从照片背景中可见的100万吨独居石库存中提取和分离稀土。伊鲁卡资源公司

然而对其他专家来说,独居石项目面临的最大挑战并不是钍、辐射或法规,而是困扰整个稀土行业的种种怪癖、误解和谋私行为的混合体。

“稀土开采业是采矿业中的阿富汗,”肯尼迪打趣道。在这个地方,人们和公司带着宏伟的构想而来,结果却陷入泥潭。

一个根本问题是,稀土业务几乎方方面面都具有高度投机性,这为幕后交易提供了土壤。尤其是,该行业饱受投机者之苦,他们买下项目的股份却无意坚持到项目完成;一旦能借任何未来利好消息获利,他们就套现离场——这种手法被称为“拉高出货”(pump and dump)。

以特朗普政府决定以2.77亿美元换取美国稀土公司(USA Rare Earth)10%股份、并向该公司提供13亿美元有担保贷款为例。美国稀土公司拥有得克萨斯州谢拉布兰卡(Sierra Blanca)附近一处名为圆顶(Round Top)的矿藏的权利。该公司聘请华尔街公司坎托·菲茨杰拉德(Cantor Fitzgerald)为这笔交易筹集10亿美元股权融资。而坎托·菲茨杰拉德恰好由唐纳德·特朗普的商务部长霍华德·卢特尼克(Howard Lutnick)的儿子们经营。

与此同时,圆顶并没有稀土矿,而且很有可能永远也不会有。

“现任政府一贯不寻求专家意见,鲁莽地把数十亿美元纳税人的钱投入到像圆顶这样商业成功机会渺茫的投机性[稀土元素]工艺和项目上,”总部位于图森的矿业顾问特里·麦克纳尔蒂(Terry McNulty)说。

加拿大稀土公司 Ucore Rare Metals 的业务发展副总裁杰夫·阿特金斯(Geoff Atkins)在2022年关键矿产研究所的一次大会上向他的同行提出了建议。“与其专注于你的投机价值,”他说,“与其能够说我们拥有世界上最大的项目,与其说‘我们有30亿或40亿美元的[净现值]’,不如你说,‘我们有一个将要投产的项目,而这个项目将在长期内、而不仅仅是在我们把它炒高、你知道,[早期]投资者可以套现的短期内,为我们的股东提供最大的价值。’

“因为除非出现这种转变,”他警告说,“否则我们就没有任何希望获得我们所需的产量,从而为下游供应链提供确定性。”

简而言之,中国以外的稀土行业需要成熟起来。而且是越早越好。

展开英文原文 · 与中文逐段对应

Heavy Mineral Sands Are Quietly Rewriting Rare Earth Supply Chains

Lynas Rare Earths’ Mount Weld mine, in Western Australia, contains large deposits of monazite ore.

The global campaigns to break China’s dominance of vital rare-earth markets are shaping up into one of the signature geostrategic struggles of the early 21st century. Hundreds of mining companies, government agencies, and industrial facilities scattered across North America, Australasia, and Europe are striving to wrest share from Chinese firms, which control roughly 90 percent of the markets for rare-earth oxides and rare-earth metals.

Rare earths are the ingredients on which vast and crucial manufacturing categories depend: semiconductors , LEDs , lasers, displays, metal alloys, optical lenses, and catalysts for petroleum and chemical processing. Most important, though, are permanent magnets. Essentially all powerful electric motors are based on rare-earth permanent magnets . These motors are the heart of electric vehicles, heating and cooling systems, robots, appliances, and tools. Rare-earth magnets are also in the motors for military systems ranging from tactical drones to ballistic-missile submarines.

Succinctly put, any industrial power that wants to remain competitive in vital, high-tech industries must have access to a steady supply of rare-earth elements or products based on them. The traditional supply chain for these elements, originating in China, is increasingly fraught—so much so that some analysts are beginning to use the term “ mineral war .” The countries that are now scrambling to piece together alternative supply chains, whether by themselves or in cooperation with each other, face daunting odds. Never mind the sheer momentum of the Chinese rare earths juggernaut. Few industries can match the rare earths business for instability, risk, intrigue, and sheer frustration.

And yet, many rare-earth experts see a way forward, and it depends on a specific kind of ore, called monazite. The ore contains huge amounts of valuable rare earths, including neodymium , praseodymium, and dysprosium.

“The future is monazite,” declares Jack Lifton , an analyst, consultant, and author. Lifton, who has been studying the rare earths industry since 1962, has seen countless trends, companies, and technologies come and go, and he isn’t given to sweeping statements. But on the subject of monazites, he’s bullish. “Right now, in my opinion, monazite is the most important rare-earth ore,” says Lifton, who is also cochairman of the Critical Minerals Institute , an organization that’s promoting the creation of a North American supply chain.

Related: Chasing China’s Monazite Monopoly

That path forward isn’t going to be smooth or straight, Lifton and others are quick to acknowledge. Monazite typically contains radioactive thorium and uranium, which means its handling, storage, and processing are tightly regulated by government agencies. It can be processed only with special techniques and procedures, and the mildly radioactive wastes generated by processing must be stored in isolation indefinitely.

Nevertheless, major investment is now flowing to monazite mines and processing technologies. In the United States, Energy Fuels , which operates the country’s only conventional uranium mill, has developed its own extraction process and is producing mixed oxides of neodymium and praseodymium—and also pilot-scale quantities of dysprosium and terbium oxides, key heavy rare earths that are otherwise produced almost exclusively in China.

An aerial view of a complex of industrial buildings and large, aboveground tanks near a large artificial pond.
图表来源:原始发布机构

Energy Fuels is processing monazite into rare-earth oxides at its White Mesa Mill in southeastern Utah. The body of water at left in the image is a tailings impoundment, where radioactive waste from processing is stored. Energy Fuels

The company has spent more than US $200 million to secure monazite assets in Brazil and Madagascar, and plans to scale its rare-earth production to higher commercial levels, at an estimated cost of $410 million. Energy Fuels’ rare-earth ambitions received a significant boost in June, when the Trump administration announced that it had signed a $725 million conditional loan commitment with the company.

Meanwhile, though, a government-backed project in Saskatchewan, Canada, stands as a cautionary tale for monazite backers. After six years of construction and expenditures of more than CA $100 million (US $72 million), a processing plant there has produced only minuscule quantities of rare earths. The processing plant, built by the Saskatchewan Research Council, was supposed to be producing 40 tonnes of rare earths per month by the end of 2024 . That didn’t happen. “Full operation,” with production of 400 tonnes of metal per year was planned for “early 2025.” That didn’t happen, either. The organization is now targeting late 2027—by which time the project will have cost more than CA $216 million , according to the Saskatchewan Research Council’s CEO, Mike Crabtree.

Outside of North America, major monazite projects are also planned by Astron Limited, Hastings Technology Metals , Iluka Resources , Mkango Resources , Sovereign Metals , Steenkampskraal Holdings , and Tronox , among others. Perth, Australia–based Lynas Rare Earths , the largest rare-earths company outside of China, is expanding its monazite mining and processing operations. Most notable is the Lynas mine at Mount Weld, Australia, one of the world’s top monazite resources; the ore is processed at a sprawling facility in Malaysia.

Of course, for countries outside of China, all this surging activity doesn’t guarantee a route to rare earths independence. It’s not even close. So the vital questions now are, What else has to happen to broaden and diversify the rare-earths supply chains? And can all of this be done safely?

What Are the Advantages of Monazite Ore?

Planet Earth has enormous quantities of monazite ore, in two different forms. In Australia, Canada, China, and South Africa, massive deposits of monazite take the form of veins of hard rock that run through mountains and calderas. Much of the new interest in monazite, though, is focused on a second type, called heavy mineral sands . The sands are the result of tens of millions of years of exposure to wind, water, and gravity crumbling mineral-rich rocks into grains, which then accumulated in coastal areas or alongside riverbeds.

Waves wash up on a beach of black and brown sand.
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A particularly desirable form of monazite ore is found in heavy mineral sands, such as these on a beach in Brazil. Travel Pix/Alamy

Within those grains, the monazite is relatively hard and chemically inert. The monazite might be just a few percent by weight, but it typically contains between 45 and 70 percent rare earths by weight, including, in many cases, all of the necessary rare earths for magnets: neodymium, praseodymium, dysprosium, and terbium.

“The best distribution of rare-earth elements that you can find anywhere is in monazites,” says Constantine Karayannopoulos , former CEO of Neo Performance Materials and now a director of or adviser to several rare-earths firms. “The real money is in those four elements.” Dysprosium and terbium, both examples of heavy rare earths, are particularly sought after and are usually not present in the most commonly mined ore for rare earths, called bastnaesite.

There are vast deposits of monazite-bearing heavy mineral sands in Australia, Brazil, India, Madagascar, Mozambique, and South Africa, with smaller ones in China, Idaho, Indonesia, Malaysia, Sri Lanka, Thailand, the southeastern U.S., and Vietnam.

A man in a white jacket and helmet points to dark seams in brown rock in an underground cavern.
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Samples of the dark rock are labeled with white characters.
图表来源:原始发布机构

A geologist points out dark veins of hard-rock monazite ore in the Steenkampskraal mine in South Africa [top]. Ore samples from the mine are collected for analysis [above]. Rodger Bosch/AFP/Getty Images

What’s more, collecting the ore simply involves dredging or strip-mining the sands, as opposed to the blasting, drilling, and heavy earth moving required to get at hard-rock ores. Then, too, the sands are already in granular form, so they don’t need to be crushed or ground, like rock ores do. Separating out the heavy minerals from the sands can usually be done at the mining site, using relatively cheap magnetic or gravity-based techniques, leaving a relatively high grade of concentrate for further processing.

And now the bad news about heavy mineral sands. “The problem is they tend to have a lot of thorium,” which is weakly radioactive, says James Kennedy , president of ThREE consulting , a rare-earths advisory firm based in Missouri. “The thorium is the single biggest problem” with using the sands, he says. “If you were mining and processing monazites for rare earths, you would end up with hundreds and eventually thousands of tons of thorium-containing radioactive residues” per processing facility. The only markets for thorium are a couple of tiny ones for welding rods and some optics , he says, so “you have to store it.” And under the rules for nuclear material set by the U.S. Nuclear Regulatory Commission and the International Atomic Energy Agency , any stored radioactive material that doesn’t have a planned use or disposal pathway is considered nuclear waste . “So the [radioactive] liability suddenly far exceeds the value of anything you’ve mined and sold,” Kennedy says.

It wasn’t always this way. Up until the 1950s, monazite was the main ore mined for rare earths. Companies processed heavy mineral sands from Australia, Brazil, and India, and hard rock from South Africa, to produce rare earths for tracer ammunition, steel alloys, cigarette-lighter flints, and, later, color-TV phosphors.

A small cluster of industrial buildings on the edge of an open-pit mine in a desert setting with a mountain in the background.
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The Mountain Pass mine and processing plants, in California, are the only large-scale rare-earth production facilities in the United States. David McNew/Getty Images

Several developments combined to shift rare-earths production from monazite to bastnaesite. In 1949, a vast deposit of bastnaesite ore was discovered at Mountain Pass in California. By the early 1960s, bastnaesite had eclipsed monazite as the primary rare-earth ore. In the 1990s, with rare-earth production shifting to China , the move toward bastnaesite continued with the exploitation of massive deposits in that country, such as those at Maoniuping , that were either entirely or mostly bastnaesite.

Now, though, any resurgence of rare-earth production outside of China may hinge on a monazite renaissance, and some observers are taking a hard look at the strict regulations that control the handling of thorium and other by-products of monazite processing. Those regulations, Kennedy insists, will throttle the rare-earth ambitions of the world outside China, unless governments take action now.

“You rationalize the regulations around thorium and you will end the rare-earth crisis in the U.S.,” he declares. “You’ll turn rare earths from something that’s always scarce to something that is common and just naturally flows out of other mining.”

How to Scale Rare-Earth Processing Using “Waste”

A prime example of Kennedy’s vision already exists at Energy Fuels, based in Lakewood, Colo. It’s the only company in the U.S. licensed to process, handle, and store compounds of uranium, and among the very few licensed to store radioactive materials of any kind. Those permits give Energy Fuels the distinction of being the only U.S. entity allowed to process monazite ore for its rare earths.

In an industrial warehouse, a man in a blue shirt and gray hard hat and sunglasses guides a large white bag down onto a wood platform.
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“Supersacks” containing a tonne of neodymium-praseodymium oxides were loaded on pallets at Energy Fuels’ White Mesa Mill. Energy Fuels

The company is moving aggressively to capitalize on that distinction. Energy Fuels’ main business is still uranium—last year it produced nearly 500 tonnes of it. But it has already started selling rare-earth oxides, following a modest $22 million investment in a small rare-earth processing facility at White Mesa Mill in Utah, where it also processes uranium. In September 2025, the company announced that it had sold 1.2 tonnes of neodymium-praseodymium oxide to South Korea–based POSCO International Corp. , a leading maker of permanent-magnet assemblies for EV motors. Around the same time, Energy Fuels disclosed that it had raised a further $700 million.

In December 2025, the company announced it had produced small quantities of dysprosium oxide. Tiny amounts of dysprosium are needed for motor magnets to ensure they keep functioning at high temperatures. Today, essentially all of the world’s dysprosium comes from China.

Energy Fuels says it can produce 1,000 tonnes of rare-earth oxide a year at White Mesa Mill. But its rare-earth production there currently shares facilities with the uranium operations, so they cannot both be produced at the same time. Its monazite comes from the chemical company Chemours , which mines heavy mineral sands in Florida and Georgia to produce titanium and zirconium. The monazite ore sold to Energy Fuels is what remains after Chemours strips out the minerals it needs, namely ilmenite and zircon.

A cranelike structure towers over a large mound of gray sand.
图表来源:原始发布机构

The chemical company Chemours mines heavy mineral sands at sites in the U.S. states of Georgia [seen here] and Florida. Monazite extracted from the sands is sold to Lakewood, Colo.-based Energy Fuels, which processes the ore into rare-earth oxides. Chemours

“Effectively, monazites are waste,” Karayannopoulos points out. “So you don’t have to dig another mine” to produce them.

Chemours and Energy Fuels have agreements under which Chemours ships 500 tonnes of monazite annually to White Mesa Mill. Energy Fuels is also negotiating or already has deals that would give it access to enormous reserves of monazite ore in Australia, Brazil, and Madagascar. These will be essential for its ambitions to become a world-class supplier of rare-earth oxides.

A man wearing horn-rimmed glasses and a blue shirt and hard hat stands at a mining site.
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Mark Chalmers, former CEO of Energy Fuels, led the uranium company’s entrance into the rare-earths business. Jesse Rieser/The New York Times/Redux

“We’re playing a long game,” says Mark Chalmers , who recently retired as Energy Fuels’ CEO and is now a consultant to the company. “We’re doing the engineering right now on a larger facility that will have the capacity to produce up to 6,000 tonnes per year” of rare-earth oxide, he said in an interview. For comparison, Lynas Rare Earths produced around 12,000 tonnes of rare-earth oxide in its most recent fiscal year.

In announcing the $725 million conditional loan commitment with Energy Fuels, the U.S. Defense Department’s Office of Strategic Capital said the deal would help Energy Fuels scale up its output of rare-earth oxides and also help realize the company’s plans to turn the oxides into metals, a key step preceding the fabrication of magnets.

What Are the Risks in the Rare-Earth Supply Chain?

To see what can go wrong with a monazite project, consider the project in Saskatoon, Canada, where the Saskatchewan Research Council (SRC) has built and demonstrated a pilot plant to produce rare-earth oxides from monazite ore. It’s the only rare-earth extraction and separation plant in the country. In an email, a spokesperson said the plant “is scheduled to be commissioned by year’s end and after a production ramp-up phase, operational within the calendar year 2027.” When in “full operation,” at a time not specified by the spokesperson, the plant will have a capacity somewhere between 400 and 600 tonnes of rare-earth metal per year.

But even that relatively modest output will depend on a reliable supply or “feedstock” of monazite. In an industry small enough that many of the top people are on a first-name basis, SRC’s inability to secure such a supply is an open secret. “Their problem is they haven’t got enough feedstock to run on a continuous basis, so they’re making sample runs,” a well-connected industry observer told IEEE Spectrum . (SRC declined to make an official available for this story.)

In April 2024, SRC announced it had reached agreements with a Vietnamese organization, the Hung Thinh Group, for 3,000 tonnes of rare-earth carbonate per year for five years. It’s unclear how much of that feedstock has made it to the SRC facility. Vietnamese government restrictions on the export of monazite and bastnaesite have been in effect since 2022 and became law this past January.

But the real twist here is that one of the largest, highest-grade monazite deposits in the world is just 800 kilometers from Saskatoon, near Alces Lake in Saskatchewan . It’s likely that the SRC facility was conceived and built with that monazite deposit in mind. After all, as a government-owned entity, SRC says its mission is “to help the people of Saskatchewan strengthen the economy with quality jobs and a secure environment.”

The Alces Lake deposit is owned by Appia Rare Earths & Uranium Corp. In an interview, Appia’s CEO, Tom Drivas , talked up the possibility of a link between SRC and Appia. “SRC would be our logical option because, you know, it’s in the same area, same province. They need the monazite. And if we can supply the monazite, that’s sort of a natural, right?”

It probably won’t happen, though. The logic of rare-earth mining is utterly different from the logic of mining a commodity like, say, copper. Multiple experts contacted by Spectrum suggested that the cost of developing a monazite mine at Alces Lake, including such necessary infrastructure as roadways, electricity, and water, would be in the hundreds of millions of dollars. Such costs, and the mercurial exigencies of the rare-earths market, make it unlikely that the government of Saskatchewan would commit that kind of money, even with help from the Canadian federal government. These factors help explain why Canada, which has some of the most attractive deposits of rare-earth ores on the planet, along with impressive mining companies and resources, has no operating mines for rare earths.

Meanwhile, SRC is pursuing other options. Under a deal announced in May with REalloys , in Euclid, Ohio, REalloys will spend $20.6 million for upgrades to SRC’s Saskatoon facility, while SRC develops technology to produce rare-earth metals from rare-earth oxides. The deal also gives REalloys the right to purchase up to 80 percent of the SRC plant’s output. Where will the feedstock come from? Hard to say, but REalloys also struck a deal with U.S. Critical Materials Corp. for 10 percent of the hypothetical output of a proposed mine at Sheep Creek, in Montana. Sheep Creek reportedly has substantial amounts of hard-rock monazite that’s unusually low in thorium. But it’s far from certain that those deposits will ever be mined. The proposal for developing a mine there, in a breathtakingly scenic area near the headwaters of the Bitterroot River, has attracted fierce opposition from environmental groups , outdoor enthusiasts , and local officials .

Taken together, SRC’s recent moves have left industry veterans nonplussed. “I’m not sure what their business model is,” said one. “They say, ‘we’re a research institute. Our mandate is to help industry.’ The reality is, they’re competing with industry.”

SRC has also drawn scrutiny for some questionable business practices. In 2022, SRC board member Dennis Fitzpatrick was fired after raising concerns about the qualifications of an engineer hired to manage and direct operations at SRC’s Saskatoon plant. The president and CEO of SRC at the time, Mike Crabtree, was responsible for the hire. A subsequent investigation of Fitzpatrick’s claims by the Canadian Broadcasting Corp. detailed a troubling web of relationships and practices surrounding the SRC’s rare-earths initiative. (Fitzpatrick did not respond to multiple emails.) For example, past business associates of Crabtree’s were reportedly appointed to positions of authority without any other candidates being considered and without their connections to Crabtree being made public.

In one case, in 2021, Crabtree disclosed that he was offering a venture capital firm, Westbridge Capital, an opportunity to invest in the rare-earths plant. But according to Fitzpatrick, Crabtree never mentioned that the VC firm was run by an SRC board member who also happened to be one of Crabtree’s business associates—or that Crabtree himself was a trustee of Westbridge and an investor in the company, as well as a paid advisor.

Crabtree remains as SRC’s CEO.

Managing Toxic By-products From Rare Earths

Putting aside SRC’s missteps, the organization does have one advantage: It holds multiple licenses from the Canadian Nuclear Safety Commission to handle, process, and manage radioactive materials. And that’s huge.

Most of the radioactive burden associated with processing monazite ore comes from substances produced during processing. In one of the early steps, pulverized, powdery ore is dried and then leached in strong acids—a process called cracking—to produce a rare-earth concentrate. Waste products of this step include a slurry containing thorium hydroxide and much smaller amounts of uranium hydroxide. The rare-earth concentrate then undergoes an extraction process to isolate specific rare earths, such as neodymium or dysprosium. More thorium and also radium are produced during these steps.

A wall of gray and a few green barrels, three units high, sits in the sand under a blue sky.
图表来源:原始发布机构

Waste barrels were photographed in 2024 at Energy Fuels’ White Mesa Mill, where ores containing uranium and rare-earths are processed and refined. Jesse Rieser/The New York Times/Redux

The thorium hydroxide slurry, meanwhile, is typically deposited in heavily regulated waste cells, called tailings impoundments or tailings ponds. The thorium hydroxide, either in the form of a slurry or a powder, must be stored in isolation from the environment indefinitely. Energy Fuels stores waste from its longstanding uranium production operations, as well as its new rare-earth operations, in tailings impoundments at its White Mesa Mill facility. The impoundments are just 10 kilometers from the community center of the Ute Mountain Ute Tribe, a group of Indigenous people , which has vigorously opposed operations at White Mesa Mill for more than 20 years .

Virtually all of the thorium is the isotope thorium-232, which is only weakly radioactive. Its radiation is alpha particles, which cannot penetrate human skin. Nevertheless, improper storage can have serious consequences, particularly if the thorium is inhaled or ingested.

“Have a look at the gravitational separation of HMS [heavy mineral sands] in Nigeria,” Thomas Kruemmer , a rare-earth consultant and analyst, wrote in an email. “There is lots of dust in the Nigerian processing sites, which the workers inevitably breathe in. And inside your respiratory system there isn’t any protective skin, so alpha radiation develops its full potential. This is something many people do not consider.”

People carrying signs marching in protest.
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An industrial plant with a central tower.
图表来源:原始发布机构

In 2012, protestors in Malaysia [top] rallied against the Lynas rare earths processing facility [above], then under construction near Kuantan. Left: AFP/Getty Images; Right: Goh Seng Chong/Bloomberg/Getty Images

Moreover, adds Kruemmer, “it is not thorium itself. It is the decay isotopes of thorium that are highly radioactive.” One decay product of thorium is polonium, he points out, “the preferred poison for [killing] Russian dissidents .”

In 1982, a company called Asia Rare Earth, a subsidiary of Mitsubishi Chemical , began extracting yttrium from monazite ore in Perak, Malaysia. Local residents soon began complaining of various illnesses. With the consent of the Malaysian government, the company had built a waste channel to a nearby disposal site, where the waste was stored in open steel barrels and in an unlined waste pond. The waste overflowed from the pond whenever it rained heavily. In 1984, a Japanese professor measured radiation levels at and near the pond and found them to be, in the most extreme cases, hundreds of times higher than internationally accepted maximums. A subsequent investigation found extremely high levels of birth defects and eight cases of leukemia in the small community near the waste dump .

A black-haired woman in a light-colored print pants suit leans over her grown son, who looks up at her.
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An industrial plant is seen through the vertical bars of a gate.
图表来源:原始发布机构

In 2011, at age 69, Lai Kwan prepared to bathe her 29-year-old son, Cheah Kok Leong [top]. Cheah Kok was born with severe mental disabilities that Lai Kwan believed were caused by exposure to radiation that she received while working at a rare earths processing plant in Bukit Merah, Malaysia [bottom, photographed during its disassembly]. Rahman Roslan/The New York Times/Redux

A protracted legal fight among local residents and Asia Rare Earth and the Malaysian government culminated in the closure of the plant in 1992. By that time, so much radioactive material had been carelessly dumped that cleanup took more than two decades and cost Mitsubishi an estimated $100 million. The episode still haunts the rare-earths industry in Malaysia, where Lynas now processes monazite concentrate at the largest rare earths processing facility in the world. That plant, in Kuantan in the state of Pahang, has been the subject of organized and active local opposition that began even before its commissioning in 2012. The Malaysian government has sporadically tightened its regulations on the plant , stipulating that, for example, radioactive wastes be shipped out of Malaysia or that the processing stages that create radioactive residues be accomplished outside of Malaysia.

Kennedy notes that if monazite ore is to become a major source of rare earths, much larger quantities of thorium will need to be disposed, probably more than could be economically accommodated in lined and isolated tailings ponds.

One of the very few options for using such large amounts of thorium involves nuclear power . Years ago, countries including the U.S., Canada, Norway, and Germany had thorium-reactor research programs, and India has had a slow-moving program for decades. But today, the only operating thorium power reactor is in China. The Shanghai Institute of Applied Physics of the Chinese Academy of Sciences has been operating, since 2023, a 2-megawatt molten-salt-cooled reactor that is thorium-fueled.

Four workers in white smocks and blue caps use mechanical manipulators to handle samples behind a window of thick glass.
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The world’s only operating thorium reactor is a 2-megawatt unit at the Shanghai Institute of Applied Physics of the Chinese Academy of Sciences. In October 2025, technicians used mechanical arms to analyze samples of the reactor’s molten-salt fuel. Jin Liwang/Xinhua/Getty Images

A couple of Western startups are keeping the thorium reactor dream alive. A Franco-Dutch company called Thorizon says it has designed a reactor that would be fueled by a mixture of thorium and spent nuclear fuel . Startup Copenhagen Atomics is working on a 1-MW reactor that’s a prototype for a 100-MW, mass-manufacturable, molten-salt reactor.

Processing of monazite ore could provide fuel for an enormous number of thorium reactors far into the future. Consider a single large facility producing 5,000 tonnes of rare-earth oxide a year. If the monazite contains 7 percent thorium, the plant would also be producing roughly 700 tonnes of thorium a year. According to Rusty Towell , a professor at Abilene Christian University in Texas who directs an advanced-reactor project there, a tonne of thorium would be sufficient to generate about 350 MW (electric) for a year. So the large processing facility alone would be throwing off enough thorium annually to keep 2,450 100-MW reactors operating for a year.

That amount of power—245 gigawatts—is about half of all the generating capacity growth forecast for the United States over the next decade, a period during which analysts expect accelerating electricity growth due to increasing numbers of data centers and electric vehicles.

What Could Strangle Rare-Earth Supply Chains?

Virtually all rare-earths experts foresee a growing role for monazite. But given the problems with thorium, local opposition to some projects, and political instabilities connected to others, some have muted expectations. “The sole and single monazite hope rests with Iluka’s expensive project in Australia, IMHO,” writes Kruemmer. Iluka Resources , based in Perth, is now building a massive rare-earths refining facility at Eneabba, 275 km north of Perth. It will process a million-tonne monazite stockpile that accumulated over decades from the company’s other mining operations. The cost of the project is estimated at AU $1.8 billion (about US $1.3 billion).

An aerial view of an industrial plant and, beyond it, a large pile of dark brown sand.
图表来源:原始发布机构

In a US $1.3 billion project, Iluka Resources is building a massive facility in Eneabba, Australia, to extract and separate rare earths from a million-tonne stockpile of monazite, visible in the background of this photo. Iluka Resources

For other experts, though, the biggest challenges facing monazite projects isn’t thorium, or radiation, or regulations. It’s the blend of quirks, misconceptions, and self-dealing that dog the entire rare-earths industry.

“The rare-earth mining business is the Afghanistan of mining,” quips Kennedy. It’s a place where people and companies go with grand ideas, only to become ensnared in quagmires.

One fundamental problem is the highly speculative nature of almost every aspect of the rare-earths business, which lends itself to backroom deals. In particular, the industry is plagued by speculators who buy stakes in a project with no intention of staying with the project through completion; they cash out as soon as they can profit from any future favorable news—a technique known as “pump and dump.”

Consider the Trump administration’s decision to take a 10 percent stake in USA Rare Earth in exchange for $277 million and to provide a $1.3 billion secured loan to the company. USA Rare Earth has the rights to a deposit called Round Top near Sierra Blanca, Texas. The company hired the Wall Street firm Cantor Fitzgerald to raise $1 billion in equity financing for the deal. Cantor Fitzgerald, as it happens, is run by the sons of Howard Lutnick, Donald Trump’s Commerce Secretary.

Meanwhile, there is no rare-earths mine at Round Top, and it’s a distinct possibility that there never will be .

“The current administration consistently fails to seek expert advice and is recklessly pouring billions of taxpayer dollars into speculative [rare-earth element] processes and projects, like Round Top, that have little chance of commercial success,” says Terry McNulty , a mining consultant based in Tucson.

Geoff Atkins , vice president of business development of the Canadian rare-earths firm Ucore Rare Metals , had advice for his colleagues at a convention of the Critical Minerals Institute in 2022. “Instead of focusing on your speculative value,” he said, “instead of being able to say we’ve got the biggest project in the world, instead of, ‘we’ve got a [net present value] of $3 billion or $4 billion,’ how about you say, ‘we’ve got a project which is going to get into operation, and this operation is going to provide the greatest value to our shareholders in the long term, not just in the short term when we can pump this up and, you know, the [early] investors can sell out.

“Because unless there is that shift,” he warned, “we’re not going to have any hope of getting the volumes we need to give the certainty to the downstream supply chain.”

In short, the rare-earths industry outside of China needs to grow up. And sooner rather than later.

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