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AL Circle Private Limited | CIN: U72200WB2017PTC221175

Registered Office: Ecospace Business Park, Block 3A, Unit 401A, New Town, Rajarhat, Kolkata, WB 700160

Corporate Office: Ecospace Business Park, Block 3A, Unit 401A, New Town, Rajarhat, Kolkata, WB 700160

© 2026 AL Circle. All rights reserved. AL Circle is not responsible for content from external sources.

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Carbonation curing could extend the field life of red mud-based backfill, new study suggests
09 SEPT 20269MINS
Alumina

Carbonation curing could extend the field life of red mud-based backfill, new study suggests

Chinese researchers show that a few extra hours of CO2 curing can roughly double the wet-dry service life of red mud–CFB ash–MgO backfill, while keeping leaching of hazardous elements low even after weeks of exposure to alkaline red mud liquor. Red mud remains one of the aluminium industry’s...

From black shale to smelter feed: CEM advances North American alumina supply chain
09 SEPT 20263MINS
Alumina

From black shale to smelter feed: CEM advances North American alumina supply chain

Canadian Energy Metals has demonstrated a process for producing smelter-grade alumina from Saskatchewan black shale and has started a prefeasibility study for its Thor Project. Canadian Energy Metals Corp. (CEM) has taken a step towards developing an alternative North American source of alumina...

08 SEPT 20264MINS
Alumina

WEEKLY: China alumina extends losses on capacity overhang, even as basis trade lifts physical offtake

China's domestic spot alumina prices continued their gradual downward trend last week, with sporadic discounted transactions emerging in the market, based on Mysteel's survey. The pressure was partly contributed by the persistent expectation of fresh supply coming online in southern China, leaving...


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Impact Minerals raises $4 million to boost the development of Lake Hope HPA project
01 MAY 20232MINS

Impact Minerals raises $4 million to boost the development of Lake Hope HPA project

Impact Minerals has secured definitive commitments from its two major owners, the Bunnenberg Family Office and ABC Beteiligungen, to fund $4,000,000 via a placement at 1.2 cents per share to speed up the development of Lake Hope High Purity Alumina (HPA) project in Western Australia, in which the...

Glencore agrees to buy equity stakes in Alunorte, ready to pay $700 million to Hydro
30 APR 20232MINS

Glencore agrees to buy equity stakes in Alunorte, ready to pay $700 million to Hydro

Norsk Hydro said on Thursday that it would sell a 30 per cent share in Brazilian alumina refinery Alunorte and a 5 per cent investment in bauxite producer Mineracao Rio do Norte to Swiss miner and trader Glencore. However, in a recent update, Glencore plans to pay about $700 million for the equity...

Alcoa brings force majeure to an end for its Western Australian alumina operation
27 APR 20232MINS

Alcoa brings force majeure to an end for its Western Australian alumina operation

According to an S&P Global Commodity Insights report on Wednesday, April 26, Alcoa has withdrawn the force majeure for its Western Australian alumina business. The news came after Alcoa spokesperson confirmed the matter. But before that, there was hearsay in the market regarding the force majeure...

Update: Century Aluminium pays US$1 to acquire a major part of Jamalco; Full transaction price is a mystery
27 APR 20232MINS

Update: Century Aluminium pays US$1 to acquire a major part of Jamalco; Full transaction price is a mystery

In line with the report published last day that Century Aluminium agreed to buy a 55 per cent stake in Jamalco, the US-based primary aluminium producer signed a purchase contract with Noble Group Holdings Limited for US$1. The deal is expected to close by the end of April 2023, but the full...

Hydro strikes a deal with Glencore to develop Alunorte alumina refinery
27 APR 20233MINS

Hydro strikes a deal with Glencore to develop Alunorte alumina refinery

Hydro has struck a deal with Glencore under which Glencore would purchase 30 per cent of the Brazilian alumina refinery Hydro Alunorte and 5 per cent of the Brazilian bauxite production Mineraco Rio do Norte (MRN). Glencore will buy an extra 40 per cent of MRN, now controlled by Vale. Hydro will...

Century Aluminium signs agreement to acquire 55% stake in Jamalco, set to secure alumina supply
26 APR 20232MINS

Century Aluminium signs agreement to acquire 55% stake in Jamalco, set to secure alumina supply

On Tuesday, April 25, Century Aluminum Company announced a significant step towards acquiring a sizeable share in a joint Jamaican bauxite mining and alumina production venture. The company has reportedly signed an agreement with Noble Group Holdings Limited (Noble) to obtain 55 per cent of its...

Alumina spot price in China closes the week lower at RMB2898/t; A00 aluminium ingot price shrinks by RMB90/t
21 APR 20232MINS

Alumina spot price in China closes the week lower at RMB2898/t; A00 aluminium ingot price shrinks by RMB90/t

According to the Shanghai Metals Market, the average alumina spot price in China has closed the week ending April 21, 2023, with a drop of RMB 5 per tonne after remaining restrained for three consecutive days. The price has concluded at RMB 2,898 per tonne versus RMB 2,903 per tonne the previous...

Four existing alumina refineries may sustain Indonesia's bauxite ban
20 APR 20232MINS

Four existing alumina refineries may sustain Indonesia's bauxite ban

Indonesia's energy and mineral resources industry (ESDM) has assured that the four existing alumina refineries could engross Indonesia's bauxite production when the bauxite export restriction goes into effect in June 2023. An ESDM ministerial staff for mineral and coal management acceleration said,...

China’s alumina spot price declines for the fourth day by RMB14/t; A00 aluminium ingot price grows by RMB30/t
17 APR 20232MINS

China’s alumina spot price declines for the fourth day by RMB14/t; A00 aluminium ingot price grows by RMB30/t

The average alumina spot price in China has plummeted by RMB 14 per tonne over the weekend to reach RMB 2,903 per tonne as of Monday, April 17, found the Shanghai Metals Market. In Shanxi, the alumina price has slumped by RMB15 per tonne to stand at RMB 2,925 per tonne. On the other hand, in...

Alumina price in China inches down to RMB 2,917/t; A00 aluminium ingot price surges by RMB210/t
14 APR 20233MINS

Alumina price in China inches down to RMB 2,917/t; A00 aluminium ingot price surges by RMB210/t

On Friday, April 14, the average alumina spot price in China inched down by RMB 1 per tonne to settle at RMB 2,917 per tonne. The prices in Lianyungang and Bayuquan have dropped by RMB 20 per tonne to settle at RMB 2,950 per tonne and RMB 3,050 per tonne. The price in Shanxi has fallen by RMB 10...

China’s March’23 alumina production grows 4.7% Y-o-Y, totalling Q1 output at 19.13 Mt
13 APR 20232MINS

China’s March’23 alumina production grows 4.7% Y-o-Y, totalling Q1 output at 19.13 Mt

According to the Shanghai Metals Market, China's production of metallurgical-grade alumina in March 2023 (31 calendar days) increased by 8.5 per cent month-on-month to total 6.64 million tonnes. In February (28 calendar days), the output stood at 6.12 million tonnes versus 6.37 million tonnes in...

China’s alumina spot price marks M-o-M fall of RMB18/t on April 12; A00 aluminium ingot price gains RMB60/t
12 APR 20233MINS

China’s alumina spot price marks M-o-M fall of RMB18/t on April 12; A00 aluminium ingot price gains RMB60/t

The average alumina spot price in China has dropped by RMB 2 per tonne on Wednesday, April 12, after remaining restrained for the past three days at RMB 2,920 per tonne, found the Shanghai Metals Market. Data shows the price has come in at RMB 2,918 per tonne as of April 12, marking a...

South & North America’s alumina output in Feb’23 reflect a 9% decline M-o-M
10 APR 20232MINS

South & North America’s alumina output in Feb’23 reflect a 9% decline M-o-M

In South America, alumina production during February 2023 stood at 936,000 tonnes, reflecting a downfall of 9.39 per cent or 97,000 tonnes month-on-month, found the International Aluminium Institute. In January, the output was 1.033 million tonnes, slightly down by 0.86 per cent from 1.042 million...

Alpha HPA receives grant worth up to $2.17 million for Stage 2 of its first high-purity alumina facility in Gladstone
06 APR 20231MINS

Alpha HPA receives grant worth up to $2.17 million for Stage 2 of its first high-purity alumina facility in Gladstone

Queensland Government has reportedly offered a grant of up to $2.17 million to Alpha HPA, the Australia-based and globally focused high-purity aluminium products manufacturer. The funding will be used to support Stage 2 of Alpha’s first high-purity alumina facility in Gladstone. In a statement to...

IMMT scientists find rare earth elements in Odisha red mud
05 APR 20231MINS

IMMT scientists find rare earth elements in Odisha red mud

On April 3, scientists from the Institute of Minerals and Materials Technology (IMMT), Bhubaneswar, reported the estimated quantity of rare earth elements that can be recovered from red mud in Odisha, a toxic byproduct generated in abundance during the processing of bauxite into alumina. Rare earth...

Rusal's Jamaica facilities suffer strike, operation disrupts
05 APR 20232MINS

Rusal's Jamaica facilities suffer strike, operation disrupts

Rusal's trade and production workers of its Jamaica facilities at Windalco, Port Esquivel, and Kirkvine have assured to report back to work when the business responds to claims granted by the Industrial Disputes Tribunal (IDT). On April 3, 2022, the workers took strike action in the morning by...

Alumina spot price in China descends by RMB12/t to RMB2,921/t; A00 aluminium ingot price drops by RMB20/t
04 APR 20232MINS

Alumina spot price in China descends by RMB12/t to RMB2,921/t; A00 aluminium ingot price drops by RMB20/t

On Tuesday, April 4, the average alumina spot price slumped by RMB 12 per tonne to halt at RMB 2,921 per tonne. The prices in Henan and Shanxi have dropped by RMB 20 per tonne and RMB 15 per tonne to come in at RMB 2,960 per tonne and RMB 2,955 per tonne. In other provinces like Shandong and...

Europe’s (inc. Russia) alumina production in Feb’23 records seventh month fall to 492,000 tonnes
03 APR 20232MINS

Europe’s (inc. Russia) alumina production in Feb’23 records seventh month fall to 492,000 tonnes

Alumina production in Europe (inc. Russia) continued to fall during February 2023, marking the seventh consecutive month of decline. According to the International Aluminium Institute, Europe’s (inc. Russia) alumina output in the stated month stood at 492,000 tonnes, reflecting a month-on-month...

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