China's domestic bauxite prices held steady with no notable change in the supply-demand landscape, though supply-side bottlenecks have remained pronounced, in the week ending September 11, 2026. Against a backdrop of gradually declining domestic ore grade, alumina refineries continue to favor imported ore, some large inland refineries now source nearly 80% from overseas.
On the import side, influenced by a winning-bid price increase at a mine in the Boffa region of Guinea last week, Mysteel raised its quote for Guinean ore (45/3 grade) to US $72 per tonne (dry). In terms of spot transactions, inventories of Guinean ore at sea and in port awaiting sale showed a declining trend. Against the broader backdrop of ongoing geopolitical uncertainties, bunker fuel oil prices and freight costs have remained persistently high, continuing to constrain spot shipments from mines. This has created a clear supply-demand mismatch in China's import ore market, forcing alumina refineries with relatively low inventories to lift raw material purchase prices.
In contrast to the rising spot prices, shipment volumes grew: Guinea's total shipments to China reached 5.01 million tonnes last week, up 133.5% week on week. However, most of this volume consists of long-term contract supply from mines, so spot liquidity remains relatively tight.
On the demand side, alumina prices have stayed weak, but refineries, approaching the upcoming signing of alumina long-term contract, have no plans yet for production cuts or maintenance. Accordingly, Mysteel expects alumina prices to stay under pressure in the near term. Under this condition, imported ore prices enjoy solid cost support but a sharp rally remains unrealistic.
Moreover, the currently healthy shipment pace means fundamentals do not justify a clear upward re-rating of ore prices; yet, on the other hand, thinning spot liquidity can easily force low-inventory refineries to pick up spot cargoes at relatively higher prices, pushing benchmark quotes higher. Mysteel expects imported ore prices to mainly trade firm-to-strong with swings in the short term.
Global bauxite shipments over September 4-10, 2026 from major exporting countries came to 6.74 million tonnes; shipments destined for China totaled 6.06 million tonnes, up 88.61% week on week. Ore at sea stood at 16.36 million tonnes, mainly sourced from Guinea and Australia.
China-bound shipments surged sharply last week, with the incremental volume almost entirely contributed by Guinea. By country, Guinea has remained China's largest overseas source of bauxite, with shipments to China at 5.01 million tonnes, up 133.50% week on week.
Guinea's rainy season has not fully receded; rainfall still constrains mining and inland transport, and with ocean freight rates currently high, miners' willingness to release spot ore is clearly suppressed. The week before last week, Guinea shipments fell to a low base. Last week's jump mainly reflects concentrated fulfillment of long-term contracts by top mines, with previously stockpiled ore at mine sites and port yards loaded in a pulse-like rebound. Australia shipped 1.05 million tonnes to China, down 1.84% week on week; Australian mining operations, port loading, and equipment ran smoothly without extreme weather or mechanical disruptions, and the modest decline was mainly due to vessel scheduling adjustments.
Combined ore at sea from both countries reached 16.36 million tonnes, keeping forward inventories high and signaling continued arrival pressure at Chinese ports later. In the shipping market, international oil prices oscillated higher and dry-bulk freight rates climbed further; freight rates on major routes such as Guinea-China and Western Australia-China rose, further pushing up China's imported bauxite costs.
Overall, last week's sharp shipment rebound is driven by a low base in the previous week plus a concentrated release of backlogged long-contract ore from Guinea. High freight rates still cap spot ore release enthusiasm, and rainy-season disruption is not fully cleared. Whether Guinea can sustain high shipments remains uncertain. The massive at-sea inventory continues to underpin domestic raw-material supply, with ports likely to keep building stocks ahead. Going forward, watch Guinea's shipment pace closely, along with international oil prices, transoceanic freight swings, and the actual arrival rhythm and cost movement of China's imported bauxite.
A total of 30 bauxite vessels arrived at major Chinese ports, mainly from Guinea and Australia, bringing in 4.21 million tonnes, up 43.14% week on week. As of Sep 11, inventories at major Chinese ports stood at 31.38 million tonnes, down 1.34% week on week.
Port inventories across mainstream Chinese ports edged down overall last week, showing clearly divergent regional trends: most core ports fell, while only a handful inched up. Specifically, most northern hub ports entered destocking: Tianjin, Rizhao, Laizhou, Huanghua, Caofeidian, and Lianyungang all saw varying inventory drawdowns, thanks to steady offtake by downstream alumina plants and incoming arrivals lagging behind outbound withdrawals. Only Jingtang and Weihai posted small builds--Weihai notably up 13.04% week on week and Jingtang up 4.88%--mainly because overseas cargoes on those routes arrived concentratedly, with inbound pace outrunning offtake. Yantai, Qingdao, and Fangchenggang inventories were flat week on week, keeping port supply-demand broadly balanced.
Taken together, last week's mild destocking relied on routine offtake, a phased, structural drawdown rather than a demand rebound. The industry still sits in a loose fundamental setup of high inventories, high at-sea volumes, and weak demand, with no substantive shift in the ample-supply pattern. In the near term, Chinese port bauxite inventories will likely remain at elevated levels.
Written by Regina WANG
wangjiaqie@mysteel.com
