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Key takeaways
Guinea’s bauxite export policy, combined with escalating geopolitical disruption in the Middle East, dominated discussions at the conference, with market participants weighing near term price risks against longer-term investment and supply chain resilience.
Delegates said expectations of imminent export controls in Guinea had become one of the most influential drivers of sentiment across the upstream aluminium value chain, even as no firm policy announcement emerged during the event.
The Fastmarkets weekly assessment for bauxite, fob Guinea was assessed at $33-38 per dry metric tonne on Friday March 27, up by $1-3 per dmt week on week but down by $8-11 per dmt since the launch of the assessment on December 19, 2025.
“If Guinea exports 240 million tonnes per year, the price will completely collapse at the level of $50 per tonne to China,” Patrice L’Huillier, chief executive officer of Guinean state-owned bauxite producer Nimba Mining, told Fastmarkets. L’Huillier warned that continued production growth without regulation would ultimately damage Guinea’s own producers.
Guinea exported around 125 million tonnes of bauxite in 2023 and about 183 million tonnes in 2025, according to figures referenced during the panel. Without intervention, exports could reach 240 million-250 million tonnes by 2027, L’Huillier said.
Despite heightened expectations ahead of the conference, the Guinean Ministry of Mines and Geology did not announce details on the looming policy. Instead, Daouda Diakite, senior advisor to the ministry, said producers should “respect” the production volumes set out in their feasibility studies, signalling a move away from blanket export caps that were discussed ahead of the conference and toward site-specific limits.
Several market participants said the lack of detail had begun to weigh on investor confidence, with concerns growing around policy clarity and the potential for licence revocations.
At the same time, the closure of the Strait of Hormuz and the escalation of conflict in the Middle East have forced rapid adjustments in alumina supply chains, diverting material away from Gulf Cooperation Council (GCC) smelters and reshaping global trade flows.
“We’re operating in very destabilizing times right now,” Jonathan Hadley, senior vice president commercial for bauxite and alumina at Hydro Aluminium International, told Fastmarkets. “Planning your supply chains and ensuring resilience today is exceptionally difficult.”
Hydro has reduced production at its joint venture smelter Qatalum, located in Qatar, and redirected alumina volumes originally destined for the region.
“Three weeks ago, nobody imagined shipping bagged alumina outside the Strait and moving it overland — now we’re seeing reasonably large volumes moving that way,” Hadley said, adding that companies were being forced to find “creative solutions” to keep material moving.
Rising freight and bunker fuel costs were another major theme at the conference, with participants noting that higher logistics costs were beginning to provide price support for upstream products despite persistent oversupply concerns.
“Bunker fuel costs are almost double,” Tristan Clarke, general manager commercial for bauxite and alumina at Rio Tinto, said, citing a combination of higher oil prices and refinery constraints.
Freight rates from West Africa to China have risen by about $8 per tonne, while rates from Australia to China are up by $4-5 per tonne, Clarke said — increases that are already being reflected in delivered bauxite prices.
“That changes costs, it changes economics, and you’re seeing that feed into bauxite prices on a delivered to China basis,” he said.
Deals concluded during the week of the conference were considerably higher than the week prior, which delegates put down to mostly high Shanghai Futures Exchange prices and increased shipping costs.
Fastmarkets’ daily alumina index, fob Australia moved up by $15.71 per tonne week on week to $315 per tonne on March 27, with the highest price during the week on Wednesday March 25 at $316.25 per tonne, following a deal heard around $320 per tonne.
With Middle Eastern demand constrained, China has emerged as a key market of last resort for displaced alumina cargoes, delegates said.
Rising domestic Chinese production costs have made imported Western Australian alumina more attractive, while market participants reported that Worsley material originally destined for South 32’s smelter Mozal were redirected into the Chinese markets as well.
Several sources said activity on the SHFE had intensified, with paper traders taking large positions without holding material, unwinding trades while attracting new participants into the market.
“The SHFE dynamic means that people bought alumina that don’t usually buy it,” a trader said.
Panelists repeatedly pointed to Indonesia’s experience with bauxite export restrictions as a reference point for Guinea, while cautioning against direct comparisons.
“Indonesia is an interesting parallel,” Hadley said. “Export restrictions there arguably led to the growth of a domestic aluminium industry — but it didn’t happen overnight.”
He added that trade controls often produce unintended consequences.
“The first-order effects are easy to predict, but second- and third-order impacts are much harder,” Hadley said.
L’Huillier stressed that Guinea’s strategy would need to be more diversified: “Guinea cannot copy exactly what Indonesia has done.”
“Guinea cannot depend only on raw bauxite exports,” L’Huillier said. “Alumina refining is complex, but it is also what brings value.”
He said incentives would be needed to push companies that had already committed to refinery projects to follow through, while acknowledging that Guinea currently lacks the power infrastructure required for aluminium smelting.
Clarke warned that industrial policy should also protect market structure.
“It’s important to ensure there is a healthy industry, with some protection for smaller players,” he said, cautioning against excessive consolidation as infrastructure and refining capacity are built out.
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