全球正面临严重的铜矿供应短缺问题。随著矿石品位下降、新矿开发成本高昂且受法规限制，预计到2040年全球将出现高达1000万公吨（约25%）的铜供需缺口。由于电动车、电网、再生能源设备及AI资料中心对铜的需求激增，矿业公司迫切需要创新解决方案。为延长亚利桑那州卡洛塔矿场（Carlota Mine）的寿命，波兰铜业集团（KGHM）与丹佛新创公司Endolith合作，引进数百万个经过特殊培育的嗜酸微生物进行「生物浸出」（bioleaching），在分解铁与硫化合物的同时释放出铜，并有望在硫酸价格因伊朗战争飙涨之际减少化学品的使用。

尽管生物浸出技术已有数十年历史并贡献全球约20%的铜产量，传统方法却仅依赖单一菌株且采取静态投放，未能完全发挥微生物潜力。Endolith透过在实验室中以高温、强酸和有毒环境「训练」微生物，培育出包含数十种菌株的多样化微生物群落，以提高其在恶劣矿场中的存活率与表现。这家成立于2023年并募得2300万美元的新创公司，已与必和必拓（BHP）和力拓（Rio Tinto）等巨头合作评估技术，目标是从低品位矿石中额外提取至少10%的铜，并结合DNA定序、云端运算与AI技术，在24小时内完成分析并动态调整微生物配方。

然而，将实验室成果扩展至商业规模仍面临重重挑战。学界与业界专家指出，大型露天浸出堆是一个受天气与环境变化影响的动态系统，极难控制，且不同矿场的矿物学与化学特性差异巨大，意味著Endolith必须为每个客户量身打造解决方案。Endolith即将在卡洛塔矿场展开首次商业规模的实地测试，这将成为验证其技术与商业模式（预估投资回收期不到一年）的关键转折点。若测试成功，不仅能为濒临关闭的老旧矿场注入新生命，也能以比开采新矿更低的碳足迹与生态成本，协助传统上趋避风险的矿业适应未来需求。（关键数字： a year）

The world is confronting a severe copper shortage driven by plummeting ore quality, high development costs, and regulatory hurdles for new mines, with projections indicating a 10-million-metric-ton (25%) supply-demand gap by 2040. As copper demand surges to power electric vehicles, power grids, renewable energy equipment, and AI data centers, mining companies are scrambling for innovative extraction methods. To extend the lifespan of Arizona’s aging Carlota Mine, owner KGHM has partnered with Denver-based startup Endolith to deploy millions of specialized, acid-loving microbes for bioleaching, a biochemical process that liberates copper by digesting iron and sulfur compounds while reducing the reliance on costly sulfuric acid.

Although industrial bioleaching has existed for decades and accounts for roughly 20% of global mined copper, legacy methods rely on single bacterial strains and static application, leaving significant room for innovation. Endolith addresses this by exposing microbes to extreme heat, heavy acids, and toxic conditions in a laboratory training camp, cultivating diverse multi-strain microbial communities designed for superior survival and performance. Having raised $23 million since 2023 and partnered with industry giants like BHP and Rio Tinto, the startup aims to extract at least 10% more copper from low-grade ore by leveraging advances in DNA sequencing, cloud computing, and AI to analyze data within 24 hours and dynamically adjust microbial cocktails in the field.

Despite these technological breakthroughs, scaling next-generation bioleaching from the lab to commercial operations remains a formidable challenge. Experts caution that open-air leaching heaps are complex, active systems exposed to the elements, and varying mineralogy across different mountains requires tailored microbial solutions for each mine rather than a single scalable formula. Endolith's upcoming commercial-scale field demonstration at the Carlota Mine will serve as a critical inflection point to prove both its operational viability and its business model, which promises a payback period of under a year. If successful, this lower-footprint approach could revitalize declining mines and compel a historically risk-averse mining industry to embrace modern biotechnological upgrades.