In the first week of June, the president of Tanzania did something no Tanzanian head of state had done in fifty-seven years: she boarded a plane for Moscow. Samia Suluhu Hassan’s three-day visit, the first since Julius Nyerere’s in 1969, produced the familiar furniture of a state trip — a memorandum of understanding, a new direct flight between Dar es Salaam and Moscow, an honorary degree, and a headline figure of more than two billion dollars in projected Russian investment over the next three to five years. Her own officials were careful to note that the number describes hoped-for deal flow, not committed capital. The substance lay elsewhere, in a sector the talks returned to again and again: minerals.

In Moscow, Tanzania invited Russian companies into geological surveys, processing, smelting and refining, and named the prizes plainly — uranium, nickel, and the broad category the industry calls critical minerals. The long-stalled Mkuju River uranium project, run by a subsidiary of Russia’s state nuclear corporation, was said to have gained fresh momentum, alongside talk of Tanzania’s first nuclear power plant by the end of the decade. Read as a bilateral story, it is a modest one: a mid-sized African economy widening its circle of friends. Read as something larger, it is a single visible thread of a contest that is quietly reshaping the world — and that almost no one is watching directly.

I

That contest is usually described as the race to build artificial intelligence, and it is narrated almost entirely from a handful of campuses in California. But the race for the most advanced models is, underneath, a race for two distinctly unglamorous things: materials and power. A frontier AI system is not conjured from pure thought. It runs in vast data centres that draw the electricity of small cities, cooled and wired and powered by hardware built from specific elements pulled out of specific ground. The “cloud,” that weightless-sounding word, rests on rock. And whoever controls the rock — along with the refineries that turn it into usable material, and the energy to run the machines — holds a quiet kind of leverage over everyone racing above.

The “cloud,” that weightless-sounding word, rests on rock.

II

This is where a country like Tanzania stops being peripheral. It sits on a serious share of the inputs the build-out needs. Its Ngualla deposit in the Songwe region is one of the world’s largest and highest-grade sources of neodymium and praseodymium — the rare-earth metals that make the powerful permanent magnets inside motors, hard drives, wind turbines and the cooling and power systems of data centres. It holds world-class graphite and large nickel deposits, both staples of the batteries that store energy. And it has uranium, which feeds the reactors that an AI-hungry grid increasingly wants. One distinction is worth keeping straight, because looser coverage tends to blur it: rare earths are not the brains of a computer chip. They are in the muscle and the plumbing around it — the magnets, the motors, the power. But the build-out needs the muscle and the plumbing as surely as it needs the silicon, and it needs the electricity most of all.

III

Which is why Tanzania now finds three great powers at its door, each with a different grip. China is the furthest in. In 2025 a Chinese state-linked company secured control of Ngualla by buying its Australian developer, outbidding a competing American offer; under a separate agreement, effectively all of the mine’s future output is already promised to Chinese processors regardless of who owns the rock. That fits a pattern. China controls an estimated 87 percent of the world’s critical-mineral processing and refining, makes more than nine in ten of the strongest rare-earth magnets, and has spent recent years acquiring African mineral assets — copper in Botswana, lithium in Mali, rare earths in Tanzania — while keeping the refining at home. Russia is the newest entrant, arriving through uranium and nuclear power and, after this month’s visit, reaching toward rare earths, graphite and nickel. The West is the conspicuous absence: outbid on Ngualla, and, since last autumn, increasingly estranged.

IV

The estrangement has a date. In October 2025, Samia was returned to power in an election that opposition figures and international observers said was marred by serious irregularities and violence. Western capitals cooled; criticism and the threat of sanctions followed. Moscow, which attaches no such conditions, offered a warmer welcome — and Tanzania, like a growing number of African states, has discovered the leverage in not having to choose. Multi-vector diplomacy, the strategists call it: take the uranium deal from Russia, the processing offtake from China, and whatever the West is still willing to put on the table, and let the interest of each work against the others. For a country long told to wait its turn, the sudden competition for its ground is a form of power it has rarely held.

V

The overlooked question is not who wins the scramble. It is whether Tanzania wins anything at all. Interest is cheap; the two-billion-dollar figure is a projection, and the continent’s history is thick with memoranda that never became mines. Only about a sixth of the country has even been surveyed in detail. And the deeper trap is structural. If Ngualla’s rare earths are dug in Tanzania but refined in China, if the uranium is enriched abroad and the magnets and batteries and reactors are assembled elsewhere, then Tanzania has once again sold the rock and bought back the finished thing at a markup — supplier to everyone’s future, owner of none of it. The opportunity is real: a growing list of African governments are now restricting raw exports precisely to force the processing onshore. So is the difficulty — and the powers across the table have every reason to keep the value flowing their way.

That is the quiet half of the AI race, and it will not be settled in California. It is being decided slowly and mostly off-camera, in the ministries and mining licences of places like Dar es Salaam — in who gets to turn the ground into the future, and who is left holding the hole. The race for intelligence is loud. The race for what it is made of is not. Both are still undecided.

VI

And Tanzania is not an isolated case. It is one node in a contest now running across three continents and, increasingly, beneath the sea. The same arithmetic that carried President Samia to Moscow is playing out across the Sahel, where Russia trades security for Mali’s lithium, Niger’s uranium and the Central African Republic’s gold; across the Democratic Republic of Congo, Indonesia, Central Asia and the lithium belt of South America, where China’s processing lock collides with a late and scrambling Western counter-offer; and now on the deep seabed itself, where the cobalt-and-rare-earth nodules of the Pacific have pulled China, Russia and the United States into a race for ground no nation owns. Wherever the minerals lie, the same powers arrive, and the same question follows them ashore: extraction, but for whom?

This is the first of a series. A companion piece will map the wider race — across the Sahel, the mineral frontiers of Latin America and Central Asia, and the contested floor of the deep ocean — because the scramble for what the future is made of has only begun.

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