Africa

非洲

Ivanhoe reports promising testwork for improving copper recoveries艾芬豪报告有望改善铜回收率的试验结果

来源：Mining Weekly 矿业周刊

Kamoa-Kakula Copper Mine

卡莫阿-卡库拉铜矿

Metals miner Ivanhoe Mines has announced“highly promising” preliminary testwork for improving copper recoveries at its Kamoa-Kakula copper mine in Kolwezi, in the Democratic Republic of the Congo. Results show a significant improvement in total recoveries can be achieved by liberating copper from a tailings stream, the Canada-headquartered company says. Based on these results, Kamoa-Kakula can further increase production, revenues and cash flow. “Despite the Phase 1 and 2 concentrators exceeding the nameplate recovery rate, the grade of copper in Kamoa-Kakula’s tailings is still much higher than that of most major copper mines globally. “This is a direct consequence of Kamoa-Kakula being the highest-grade major copper mine globally. However, we are leaving a significant amount of copper behind, which this planet so desperately needs right now for our energy transition,” states Ivanhoe founder and executive co-chairperson Robert Friedland. “If we can recover this copper, the production profile following the Phase 3 expansion could be in excess of 700 000 t/y. Not only would this provide additional revenue and cash flow, but it would also reduce even further our tailings footprint. “We are targeting total copper recoveries in the mid-nineties from this breakthrough, as well as from the other concurrent workstreams. Our experienced team, with a proven record of execution and delivery, are leaving no stone unturned to improve the efficiency of extraction from this incredible endowment,” he adds. Last year, Kamoa Copper’s process engineering team, together with a number of internationally recognised external metallurgy specialists, initiated work to investigate ways to economically recover additional copper units from the tailings stream of the Phase 1 and 2 concentrators. The Kamoa-Kakula Copper Complex last year milled about 7.1-million tonnes of ore at an average feed grade of 5.5% copper, producing 333 497 t of copper in concentrate.

金属矿商艾芬豪矿业宣布，在刚果民主共和国科尔韦齐的卡莫阿-卡库拉铜矿进行的初步试验取得了“非常有希望”的结果，以改善铜的回收率。这家总部位于加拿大的公司表示，试验结果显示通过从尾矿提取铜可以实现总回收率的显著提高。基于这些结果，卡莫阿-卡库拉可以进一步提高产量、收入和现金流。艾芬豪创始人兼执行联席主席罗伯特·弗里德兰说：“尽管一期和二期浓密机的回收率超过了额定回收率，但卡莫阿-卡库拉尾矿中的铜品位仍远高于全球大多数主要铜矿。这是卡莫阿-卡库拉是全球高品位的主要铜矿的指标结果。然而，我们仍然有大量的铜，世界现在迫切需要用于能源转型。”“如果我们能够回收这些铜，第三阶段扩建后的生产规模可能超过每年70万吨。这不仅将产生额外的收入和现金流，还将进一步减少我们的尾矿库面积。”他补充道：“我们的目标是从这一突破中以及其他同时进行的工作流程中实现高的铜总回收率。我们经验丰富的团队在铜矿资源回收效率方面毫不懈怠，他们具有出色的执行和交付业绩。”去年，卡莫阿铜公司的选矿工艺团队与多名国际知名的外部冶金专家共同进行了研究，以探索从一期和二期浓密机的尾矿中经济回收额外铜的方法。卡莫阿-卡库拉铜矿山去年共处理了约710万吨矿石，铜选矿平均品位为5.5%，生产了33.3万吨的铜精矿。

Endeavour to build $55m solar plant at Senegal mine奋进矿业计划在塞内加尔矿山建造一座价值5500万美元的太阳能发电厂

来源：Mining Weekly 矿业周刊

Africa-focused gold miner Endeavour Mining has brought forward the construction of a 37 MWp photovoltaic (PV) solar facility at the Sabodala-Massawa mine, in Senegal, at a cost of $55-million. The solar plant will complement the 36 MW heavy fuel oil power plant that is currently being expanded as part of a brownfield expansion at Sabodala-Massawa mine. In addition, a 16 MW battery system will be constructed to regulate power supply and ensure less generators are required. Endeavour says the hybridisation of the Sabodala-Massawa mine is aligned with its optimisation strategy and will realise a 15% pretax internal rate of return on the investment, based on the current reserve mine, and exceed 20% based on the additional resource conversion and exploration potential. “Our relentless focus on cost and efficiency improvements has continued to identify optimisation opportunities across the portfolio, leading to our decision to move forward with the 37 MWp PV facility at our Sabodala-Massawa mine, thereby redeploying a portion of the proceeds obtained from the sale of our noncore mines,” comments president and CEO Sebastien de Montessus. Endeavour recently sold its Boungou and Wahgnion mines, in Burkina Faso, for $300-million, as part of its strategy to focus on higher-quality assets. The plant, which will significantly lower fuel consumption and power costs, while reducing emissions, will be commissioned in early 2025. Meanwhile, commenting on the brownfield expansion of Sabodala-Massawa and the Lafigue greenfield project, in Cote d’Ivoire, De Montessus reports that both are on budget and on track to be commissioned next year. The dual-listed miner is investing $740-million on the two growth projects. De Montessus also reports that Endeavour will meet its 2023 production guidance, which was adjusted to reflect the sale of the Boungou and Wahgnion mines. The group is aiming to produce 1.06-million to 1.14-million ounces at an all-in sustaining cost (AISC) guidance of $895/oz to $950/oz. In the first half of 2023, production from continuing operations decreased by 13% year-on-year to 511 000 oz, owing to decreased production at Hounde and Sabodala-Massawa as an increased focus on stripping activity resulted in lower grade ore being processed, and at Mana owing to an increased focus on underground development. Second-quarter output fell by 10% quarter-on-quarter to 268 000 oz at an AISC of $1 136/oz. The miner posted adjusted net earnings of $54-million in the June quarter, down from $65-million in the March quarter and $109-million in the June 2023 quarter. Endeavour also declared a first-half dividend of $100-million, which on an annualised basis represents $25-million more than the minimum dividend commitment for the year. “Looking ahead, our goal is to increase our shareholder returns programme further once our organic growth projects are complete, to ensure that our efforts to unlock growth benefit all stakeholders,” says De Montessus.

专注于非洲的金矿公司奋进矿业计划以5500万美元的成本提前建设位于塞内加尔的Sabodala-Massawa矿山的一个37兆瓦光伏太阳能发电厂。这个太阳能发电厂将与36兆瓦的重质燃料油电厂相互补充，后者目前正在进行一个棕地扩展项目。此外，还将建造一个16兆瓦的电池系统来调节电力供应，减少对发电机的需求。奋进矿业表示，Sabodala-Massawa矿山的混合化发电是与其优化战略相一致的，将实现15%的税前内部回报率，基于当前矿山储量，如果考虑到额外的资源转换和勘探潜力，这一数字将超过20%。奋进矿业总裁兼首席执行官塞巴斯蒂安·德·蒙特苏斯评论说：“我们对降低成本和提高效率的不懈努力不断发现了投资组合中的优化机会，这导致我们决定推进我们的Sabodala-Massawa矿山的37兆瓦光伏发电厂，从而再投入了从出售非核心矿山获得的部分收益。”作为其专注于更高质量资产的战略的一部分，奋进矿业最近以3亿美元的价格出售了其位于布基纳法索的Boungou和Wahgnion矿山。这个发电厂将显著降低燃料消耗和电力成本，同时减少排放，计划在2025年初投入使用。与此同时，关于Sabodala-Massawa的棕地扩展和科特迪瓦的Lafigue绿地项目，德·蒙特苏斯报告说，这两个项目都在预算内，计划在明年投入使用。这家两地上市的矿业公司将在这两个增长项目上投资7.4亿美元。德·蒙特苏斯还表示，奋进矿业将实现其2023年的产量指导，这是基于出售Boungou和Wahgnion矿山进行调整的。该集团的目标是在全维持成本为895美元/盎司到950美元/盎司的情况下，生产106万至114万盎司。在2023年上半年，持续营运的产量同比下降13%，至51.1万盎司，这是由于在Hounde和Sabodala-Massawa的生产减少，由于对剥离活动的增加导致较低品位的矿石被处理，以及Mana由于更多地关注地下开发。第二季度产量环比下降10%，至26.8万盎司，全维持成本为1136美元/盎司。在6月份的调整后净收益为5400万美元，低于3月份的6500万美元和2023年6月份的1.09亿美元。奋进矿业还宣布了一项价值1亿美元的半年度股息，按年计算，这将比今年最低股息承诺多2500万美元。德·蒙特苏斯说：“展望未来，我们的目标是在我们的有机增长项目完成后进一步增加股东回报计划，以确保释放我们的增长潜力。

Ivanhoe Mines records strong second-quarter at Kamoa-Kakula艾芬豪卡莫亚-卡库拉矿山二季度业绩强劲

来源：Mining Weekly 矿业周刊

Canadian miner Ivanhoe Mines’ Kamoa-Kakula copper complex, in the Democratic Republic of Congo (DRC), sold 101 526 t of payable copper in the second quarter ended June 30 and recognised record quarterly revenue of $702-million and earnings before interest, taxes, depreciation and amortisation (Ebitda) of $457-million. Ivanhoe recorded adjusted Ebitda of $172-million for the quarter, compared with $101-million for the same period in 2022. Kamoa-Kakula’s quarterly cost of sales totalled $1.24/lb of payable copper, while C1 cash costs were $1.41/lb, at the lower end of guidance. Ivanhoe recorded a profit of $87-million for the quarter, net of a $27-million non-cash loss on the $575-million convertible bond fair valuation, compared with a profit of $82-million for the previous quarter. Since entering Phase 1 commercial production on July 1, 2021, the Kamoa-Kakula joint venture has generated $1.82-billion of net cash from operating activities, which has funded both the Phase 2 and Phase 3 expansions to date. Ivanhoe has a strong balance sheet with cash and equivalents of $393-million on hand as at June 30, and expects Kamoa-Kakula’s Phase 1 and Phase 2 cash flow to be sufficient to fund the Phase 3 expansion capital cost requirements at current copper prices.

加拿大矿业公司艾芬豪矿业在刚结束的第二季度，其卡莫亚-卡库拉铜矿销售了101,526吨铜，创下了7.02亿美元的季度收入记录，以及4.57亿美元的利息、税金、折旧和摊销前利润（EBITDA）。艾芬豪在本季度的调整后的EBITDA为1.72亿美元，而2022年同期为1.01亿美元。卡莫亚-卡库拉的季度销售成本为每磅1.24美元的铜，而C1现金成本为每磅1.41美元，处于指导指标的最低值。艾芬豪本季度的利润为8700万美元，扣除了5.75亿美元的可转换债券公允价值的2700万美元非现金损失，而上一季度的利润为8200万美元。自从于2021年7月1日开始第一阶段商业生产以来，卡莫亚-卡库拉合资企业已从运营活动中产生了18.2亿美元的净现金，这已为迄今为止的第二阶段和第三阶段扩建提供了资金。截至6月30日，艾芬豪的资产负债表强劲，手头有3.93亿美元的现金和等价物，并预计在当前铜价下，卡莫亚-卡库拉的第一阶段和第二阶段现金流足以满足第三阶段扩建的资本成本需求。

AngloGold’s top-tier Africa assets brought to fore, emissions cut using renewables英美阿散蒂顶级非洲资产脱颖而出，使用可再生能源减少排放

来源：Mining Weekly 矿业周刊

Four out of the five top-tier gold-mining assets of AngloGold Ashanti are in Africa. As the cornerstones of the company, these tier 1 mines are Geita in Tanzania, Obuasi and Iduapriem in Ghana, and Kibali in the Democratic Republic of Congo. These are the longer life and lower cost companies that have potential to increase their production. When it comes to projects, the advancing tier 1 project pipeline is in the US, where five projects are being progressed in the Beatty District, where there is potential to produce more than 300 000 oz/y of gold over multi decades at an AISC in the high $900/oz, with first production planned at the end of 2025. In a reassessing of its portfolio, AngloGold Ashanti has subdivided its assets into tier 1 assets, tier 2 assets and ‘other’. The second-tier assets include the shorter life Siguiri of Guinea, Sunrise Dam of Australia, Cerro Vanguardia of Argentina, and Cuiaba of Brazil. The focus on these is to lower the cash costs. These collectively produce 889 000 oz a year at an AISC of $1 598/oz and have a 23-million-ounce resource. These tier 2 operations are run for cash and come second in the rankings when it comes to new capital, with the tier 1’s likely receiving priority, but still being nurtured with sustaining capital expenditure (capex). Falling into 'other' are Córrego do Sitio and Serra Grande in Brazil with a decision on their future course required. These are mature, high-cost operations with flexibility constraints. They produce 158 000 oz a year at an AISC of $2 377/oz and a mineral reserve of eight-million ounces. “By scale, they don’t belong in a portfolio like AngloGold but we are still responsible stewards. They are very high in the cash cost category and they are causing a significant drain and loss of competitiveness,” AngloGold CEO Alberto Calderon said during last week’s results presentation covered by Mining Weekly.“Córrego do Sitio is a complex mine and at some point this year we’ll take a decision. We’ll try to sell it, as we did before, and if we can’t, we’ll take other decisions like putting it in care and maintenance. “Serra Grande is different. We expect it to be cash positive in the second half. It was slightly negative in the first half but it’s small in nature. If at some point in the future we can find a good home for it, we will do but there is not urgency on Serra Grande because we don’t expect any losses in the second half. It’s back to covering its own costs and sustaining capex,” Calderon explained.

在五家英美阿散蒂的顶级金矿资产中的四家位于非洲。作为公司的支柱，这些一级矿山是坦桑尼亚的盖塔、加纳的奥巴斯和伊杜阿普里姆，以及刚果民主共和国的基巴利。这些矿山是寿命较长且成本较低的公司，具有增加产量的潜力。公司正在推进位于美国的一级项目组合，有五个项目正在贝蒂区域进行，预计在高达300,000盎司/年的产量以及高达900美元/盎司的全球矿业平均成本下，将在2025年底实现首次生产。在重新评估其投资组合时，英美阿散蒂已将其资产分为一级资产、二级资产和其他资产。第二级资产包括几内亚的瑟吉里、澳大利亚的日出坝、阿根廷的塞罗范瓜迪亚以及巴西的库亚巴。对这些资产的关注是降低现金成本。这些矿山年产量共计达到889,000盎司，全球矿业平均成本为1,598美元/盎司，拥有2,300万盎司的资源量。这些二级运营矿山主要是为了现金流，并且在运营资本排名中排名靠后，优先级较低，但仍会通过维持性资本支出（CAPEX）来保证其运营。被划归为其他类别的是巴西的科雷戈杜席蒂奥和塞拉格兰德矿山，需要对其未来进行决策。这些都是成熟的高成本矿山，受限于灵活性。它们的年产量共计达到158,000盎司，全球矿业平均成本为2,377美元/盎司，矿产储量为800万盎司。"就规模而言，它们不适合出现在类似英美阿散蒂的投资组合中，但我们仍然是负责任的管理者。它们的现金成本非常高，且导致了显著的资金流失和竞争力下降，" 英美阿散蒂首席执行官阿尔贝托·卡尔德隆在上周的业绩发布会上解释说，"科雷戈杜席蒂奥是一座复杂的矿山，我们将在今年的某个时候做出决策。我们将像以前一样尝试出售，如果我们不能出售，我们将做出其他决策，比如将其置于维护状态。" 卡尔德隆解释道，“塞拉格兰德则不同，我们预计在下半年它将实现正现金流。上半年它稍有亏损，但规模较小。在未来的某个时间点，如果我们能为它找到一个合适的方案，我们会这样做，但是塞拉格兰德没有紧急性，因为我们预计下半年不会有亏损。它已经回到了覆盖自身成本和维持性资本支出的状态。”

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