In a continent where 40 per cent of the world’s natural resources lie beneath the surface, only 30 per cent have been thoroughly explored. But the challenge isn’t just geology. It is in its governance. More specifically, it’s the invisible curtain shrouding Africa’s geological survey data that may be deterring billions in potential investment.
Image for referential purposes only (Source: https://www.bruker.com/)
At the recent London Indaba, Mark Cutifani, Chairperson of Vale Base Metals and a mining heavyweight formerly at Anglo American, struck a chord during his opening keynote, as he shared, “Malawi is the first, and I believe Nigeria is the second.” He wasn’t talking about mineral production, infrastructure milestones, or new critical mineral discoveries. He was referring to a fundamental but overlooked advantage: open-source geological data.
Among all the minerals that Africa has, bauxite holds great potential among others. The global metallurgical bauxite for aluminium market is expected to grow significantly between 2023-2030. According to AL Circle estimates, the market was worth USD 15.5 billion in 2023. However, by 2030, a substantial increase is anticipated, with the market size projected to reach USD 19.6 billion at a CAGR of 2.41 per cent.
In 2025, global bauxite production is set to reach around 450 million tonnes. This expansion is driven primarily by the rising demand for aluminium products. Although the prediction forecasts a growth in bauxite production volume in 2025, the growth rate is projected to decline from 2024. Top bauxite producers, including Guinea and Australia, continue to play a crucial role in growing the industry; however, China, Brazil, and India comprise the top three and form the top five bauxite producers worldwide.
The ‘data lockbox’ that blocks exploration
In much of Africa, the geological maps, soil analyses, drill records, and mineral deposit data that investors rely on to make multi-million-dollar decisions are still locked away in ministries, archives, or the private vaults of long-gone prospectors. Governments (often cited due to institutional inertia, underfunded geological agencies, or legacy secrecy) have kept these datasets under wraps or in paper records that haven’t been digitised.
The result? Exploration becomes costly, uncertain, and bureaucratically treacherous.
A 2024 KPMG report on Nigeria makes this plain: “Most of the available geological/geoscience data are dated and unavailable, which affects the sector’s ability to attract investors.” Despite having 44 solid minerals of interest, Nigeria’s mining sector accounts for less than 1 per cent of its GDP, largely because of what’s missing: credible, open-access geological data.
South Africa faces a similar challenge. Despite being one of the most mature mining economies on the continent, the Council for Geoscience (CGS) has openly acknowledged that “mining companies aren’t mandated to share historical geoscientific data,” and much of the archival information is inaccessible to public view. “South Africa is the only major mining jurisdiction that does not have historical data available to view,” noted CGS CEO Mosa Mabuza in late 2023. This opacity deters junior miners and venture capitalists, who can’t afford to fly blind.
Why data openness matters
The economic implications are far-reaching. Mineral exploration (especially in greenfield regions) requires geological visibility. Without it, risk assessments are guesswork. Companies are often forced to conduct costly duplications of surveys, navigate complex bureaucracies for permits and approvals, or simply walk away altogether. For smaller explorers without deep capital reserves, Africa often becomes a “pass-over” continent despite its vast mineral promise.
Meanwhile, nations like Canada and Australia, which maintain vast, free-to-access online geodata repositories, draw a disproportionate share of global exploration dollars. These systems create a level playing field, foster competitive tension among bidders, and ensure public resources are leveraged into long-term investment. According to a World Bank-commissioned report, open-access geological data increases the likelihood of attracting credible exploration firms by over 50 per cent.
In the African context, this could be transformative. Consider this: only 1.8 per cent of US venture capital funds are deployed in Africa. Part of the hesitation, as Cutifani observed, stems from trust deficits on both sides. “If you want investment, open source your geological survey data… It deals with the perception of corruption at the same time,” he urged at the London Indaba.
For bauxite production, the investments look like this (for now).
Wherein Brazilian miner MRN received a preliminary license for a bauxite project lifespan extension, and Indonesia’s Tianshan Aluminium advances Indonesian ventures with bauxite exploration, African countries are not far behind. The Ghana Integrated Aluminium Development, popularly known as GIADEC, has announced its keen interest in expanding the country’s bauxite production and enhancing its capacity in line with the growing demand for primary aluminium raw materials.
Arrow Minerals Limited announced a significant step forward in its expansion strategy with the entry into a Share Purchase Option Agreement (the Agreement) to acquire the Niagara Bauxite Project situated in Guinea.
Canyon Resources Limited has formally signed a mining convention for the Minim-Martap Bauxite Project in Cameroon.
Tianshan Aluminum Company has actively disclosed updates regarding its investor relations. Following the successful equity acquisition of local mining companies in Guinea, the company is steadily advancing its region’s bauxite mining and shipment project.
Arrow Minerals Niagara bauxite discovery grows to over 14sqkm as the latest drilling returns exceptional grades. Ashanti Bauxite Limited, a joint venture between the Ghana Integrated Aluminium Development Corporation (GIADEC) and Rocksure International Limited, has announced ambitious plans to develop a bauxite mine with an integrated refinery in the Nyinahin-Mpasaaso area of the Ashanti Region.
Malawi and Nigeria are setting a new standard. Malawi, through initiatives led by its Geological Survey Department and supported by Sovereign Metals’ globally watched Kasiya project, has adopted JORC-compliant reporting and made strides toward transparent, digitised geological mapping.
Nigeria, historically opaque in its mining governance, is emerging as a surprise reformer. Through the Mineral Sector Support for Economic Diversification (MinDiver) project and in partnership with the British Geological Survey, the country is now publishing geodata through its NGSA (Nigerian Geological Survey Agency). What was once buried in institutional vaults is being surfaced through public web portals and investor roadshows.
These countries aren’t just making data available—they’re sending a signal: “We’re open for business, and we have nothing to hide.”
Zambia may be next. The country is undertaking what is described as the world’s most extensive airborne geophysical survey. Within two years, Zambia could house the globe’s most comprehensive geophysical database, a move that could catapult it into a new league of mineral investment destinations.
For now, Zambia’s Ministry of Mines and its Geological Survey Department are working with a mix of donor support and private technology providers to digitise, integrate, and publish the data—a bold step toward joining Malawi and Nigeria in what Cutifani dubbed “the new Africa.”
At first glance, it may seem puzzling that Guinea, the world’s second-largest bauxite producer, and Ghana, with its own large bauxite ambitions via GIADEC, are not on this list. However, while both countries have made a presence on the global stage, their geological data remains largely unpublished at the government level.
In Guinea, most reserve information is reported through private mining consortia, such as SMB-Winning and CBG. Ghana, meanwhile, continues to shield its geological data due to strategic and political sensitivities, particularly surrounding its bauxite-for-infrastructure deal with China’s Sinohydro.
It seems that these countries are not underperforming geologically. But they are under-communicating.
The road ahead: trust, not just tracts
As Moses Engadu, Secretary-General of the African Minerals Strategy Group, put it: “Africa doesn’t need charity. Africa needs capital to develop its potential. If you come to make a quick buck, we’ll take your money, but if you come to invest in good faith, we will work as partners with you to deliver special outcomes.”
But good faith must start with good data.
Cutifani’s plea was not just a technical recommendation. It was a call to action. For Africa to take its rightful place in the global critical minerals economy, the data gatekeepers must first throw open the doors.
For an indepth understanding of the global bauxite industry's past, present and potential future, acquire and go through our analytical and contextual report: Global Bauxite and Alumina Industry Outlook 2025
