近期,智利政府将BHP投资40亿美元的斯宾塞铜扩建项目(Spence copper expansion project)移出未来十年发展计划,该项目在2020年投产的计划也将推迟。BHP将埃斯孔迪达铜矿(Escondida copper)作为优先发展的项目,而斯宾塞铜矿则将在其发展计划中期成为主要的铜矿供应源。根据BHP所做的预可行性研究,存在于当前斯宾塞项目地下的铜矿最高可将该项目的寿命延长50年。2012年,智利国家铜业预测,未来10年,智利将建成总投资达1 050亿美元的资源类项目。但仅仅3 Recently, the Chilean government removed BHP’s $ 4 billion Spence copper expansion project from its 10-year development plan and the project’s production schedule in 2020 will be delayed. BHP takes Escondida copper as a priority project and Spencer Copper will become a major copper source by mid-term of its development plan. According to a pre-feasibility study by BHP, the copper mine existing underground under the current Spencer project could extend the life of the project by 50 years. In 2012, Chile’s National Copper Company predicted that in the next 10 years Chile will build a resource project with a total investment of 105 billion U.S. dollars. But only 3