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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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Guinea govt. extends the submission date for alumina refinery proposals; eyes to set a reference price for aluminium ore
12 JUN 20222MINS

Guinea govt. extends the submission date for alumina refinery proposals; eyes to set a reference price for aluminium ore

On 10 th June 2022, the Guinea govt. has stated that it has given the bauxite mining companies doing business in the nation another ten days timeline to present the proposals for building alumina refineries , which they were supposed to attain by the end of May 2022. Guinea, one of the world’s...

Rio Tinto’s aluminium assets in the Gladstone region to be powered by green energy
09 JUN 20222MINS

Rio Tinto’s aluminium assets in the Gladstone region to be powered by green energy

The global mining and metal giant, Rio Tinto plans to will invest in extensive green energy generators (wind and solar farms) in central and southern Queensland to power its Gladstone region aluminium assets. On 9 th June 2022, Ivan Vella, the CEO of Rio Tinto’s Aluminium business called for...

China’s alumina price digs deeper to RMB2972/t with RMB14/t loss; A00 aluminium ingot price continues to shed RMB20/t
09 JUN 20223MINS

China’s alumina price digs deeper to RMB2972/t with RMB14/t loss; A00 aluminium ingot price continues to shed RMB20/t

On Thursday, June 9, average alumina spot price in China has stopped at RMB 2,972 per tonne, declining by RMB 14 per tonne, as the SMM data shows. The alumina prices in Henan and Guangxi have dropped by RMB 10 per tonne to halt at RMB 3,050 per tonne and RMB 2,985 per tonne, respectively. Alumina's...

Rusal files lawsuit against Rio Tinto claiming back 20% ownership in Queensland Alumina
07 JUN 20222MINS

Rusal files lawsuit against Rio Tinto claiming back 20% ownership in Queensland Alumina

According to a report on Monday, June 6, Rusal, the Russian aluminium giant, prosecuted global miner Rio Tinto to regain its access to 20 per cent share in alumina produced at a jointly owned refinery Queensland Alumina Limited (QAL). Rusal, in the lawsuit, challenged Australia’s sanctions against...

Hindalco's alumina production grows by 20% in FY22 following a capacity expansion at its Utkal refinery
07 JUN 20221MINS

Hindalco's alumina production grows by 20% in FY22 following a capacity expansion at its Utkal refinery

As a result of increased capacity at the Utkal alumina refinery in India's eastern state of Odisha, Hindalco Industries has increased its alumina output by 20% for FY22. On 16th September 2021, Naveen Patnaik, the Chief Minister of Odisha virtually inaugurated Utkal Alumina refinery’s expansion of...

Alumina production in Europe (incl. Russia) sees a fall of 11% M-o-M to 683,000 tonnes during April’22
06 JUN 20221MINS

Alumina production in Europe (incl. Russia) sees a fall of 11% M-o-M to 683,000 tonnes during April’22

In Europe (incl. Russia), alumina production during April 2022 totalled 683,000 tonnes, a sharp decline of 86,000 tonnes or 11.18 per cent month-on-month, found the International Aluminium Institute. In March, alumina output in Europe was at 769,000 tonnes, also down over a month from 776,000...

Alumina weekly recap: Hydro Rein and GIG join to initiate wind and solar plant for serving Alunorte alumina refinery with sustainable energy; Ma'aden seals an agreement with GlassPoint to build the world's largest solar-powered steam plant to decarbonize its alumina refinery
05 JUN 20223MINS

Alumina weekly recap: Hydro Rein and GIG join to initiate wind and solar plant for serving Alunorte alumina refinery with sustainable energy; Ma'aden seals an agreement with GlassPoint to build the world's largest solar-powered steam plant to decarbonize its alumina refinery

The renewable energy solutions provider, Hydro Rein and Macquarie Asset Management’s Green Investment Group (GIG), a specialist green investor, agreed to form a joint venture named Feijão, which will operate after constructing a combined wind and solar power project, with a 586-megawatt capacity,...

Ma'aden seals an agreement with GlassPoint to build the world's largest solar powered steam plant to decarbonize its alumina refinery
02 JUN 20223MINS

Ma'aden seals an agreement with GlassPoint to build the world's largest solar powered steam plant to decarbonize its alumina refinery

The Saudi Arabia state-owned mining company headquartered in Riyadh, Ma'aden has signed a Memorandum of Understanding (MoU) with GlassPoint, the leading manufacturer of industrial solar steam generators using solar thermal technology to generate steam for industrial processes. The signed agreement...

Alumina production in Africa & Asia (ex-China) sees M-o-M hike of 8.36% to 1.179 Mt during April’22
01 JUN 20221MINS

Alumina production in Africa & Asia (ex-China) sees M-o-M hike of 8.36% to 1.179 Mt during April’22

Alumina production in Africa & Asia (ex-China) stood at 1.179 million tonnes in April 2022, registering a continued increase of 8.36 per cent month-on-month, according to the International Aluminium Institute (IAI) data. In March, the output stood at 1.088 million tonnes, up by 1.21 per cent from...

Hydro Rein and GIG to build and operate wind & solar project for power supply to Alunorte alumina refinery
01 JUN 20222MINS

Hydro Rein and GIG to build and operate wind & solar project for power supply to Alunorte alumina refinery

Hydro Rein, a renewable energy solutions provider, and Macquarie Asset Management’s Green Investment Group (GIG), a specialist green investor, have signed an agreement to form a joint venture company Feijão. The company will build and operate a combined wind and solar power project, with a capacity...

RUSAL allots 50 scholarships to eligible Guinean students for free medical education
31 MAY 20222MINS

RUSAL allots 50 scholarships to eligible Guinean students for free medical education

RUSAL, the Russian aluminium giant, under the "2022 RUSAL Scholarship" initiative, wishes to educationally aid highly qualified Guinean practitioners, cardiologists, surgeons, nursing specialists and laboratory assistants. The programme will guide 50 Guineans through higher medical education for...

World daily alumina output improves in April’22 despite a 3% monthly fall to 11.373 Mt : IAI
31 MAY 20222MINS

World daily alumina output improves in April’22 despite a 3% monthly fall to 11.373 Mt : IAI

World alumina production in April 2022 came in at 11.063 million tonnes, registering a downfall of 2.73 per cent from 11.373 million tonnes in March, found the International Aluminium Institute. However, the output in March registered a month-on-month hike of 12.43 per cent from 10.116 million...

Alumina spot price in China dips by RMB2/t to RMB2987/t; A00 aluminium ingot price inches up by RMB10/t
31 MAY 20222MINS

Alumina spot price in China dips by RMB2/t to RMB2987/t; A00 aluminium ingot price inches up by RMB10/t

China's average alumina spot price has continued to fall for the second day in a row, although at a lower rate than the previous day. According to the Shanghai Metals Market data, the price has dipped by RMB 2 per tonne to stand at RMB 2,987 per tonne on Tuesday, May 31. In Guizhou and Guangxi,...

China’s alumina price drops by RMB6/t to RMB2989/t; A00 aluminium ingot price falls by RMB50/t at the week’s start
30 MAY 20223MINS

China’s alumina price drops by RMB6/t to RMB2989/t; A00 aluminium ingot price falls by RMB50/t at the week’s start

The average alumina spot price in China has dived down by RMB 6 per tonne to rest at RMB 2,989 per tonne, and particularly in Shanxi, it has fallen by RMB 15 per tonne to halt at RMB 2,905 per tonne. A00 aluminium ingot price has dropped by RMB 50 per tonne to settle at RMB 20,750 per tonne on...

QEM commissions vanadium pilot project and HPA extraction unit for battery sector supply
28 MAY 20222MINS

QEM commissions vanadium pilot project and HPA extraction unit for battery sector supply

QEM Ltd successfully has commissioned a pilot plant to evaluate the production of oil shale and vanadium pentoxide with resources from its flagship in north-western Queensland, the Julia Creek Project. QEM is an Australian producer of vanadium pentoxide and energy. The company is supposed to...

EGA collaborates with American University of Sharjah to re-use food waste to enrich manufactured soil made from bauxite residue
27 MAY 20224MINS

EGA collaborates with American University of Sharjah to re-use food waste to enrich manufactured soil made from bauxite residue

UAE’s largest industrial organisation, excluding gas and oil, Emirate Global Aluminium (EGA), has declared today a venture with the American University of Sharjah’s College of Engineering to study the beneficial qualities of re-using food waste to enhance the soil manufactured from bauxite residue....

Alumina price on constant decline to RMB2995/t; A00 China aluminium ingot price shrinks by RMB80/t
25 MAY 20223MINS

Alumina price on constant decline to RMB2995/t; A00 China aluminium ingot price shrinks by RMB80/t

Today's alumina spot price in China has stopped at RMB 2,995 per tonne, declining by RMB 1 per tonne, as found in the SMM data. The alumina price in Shanxi has dropped by RMB 5 per tonne to halt at RMB 2,920 per tonne. The Australian alumina FOB price has decreased by US$ 4 per tonne, closing at...

Alumina price in China drops by RMB4/t resting at RMB2996/t; A00 aluminium ingot price crash-dives RMB230/t
24 MAY 20223MINS

Alumina price in China drops by RMB4/t resting at RMB2996/t; A00 aluminium ingot price crash-dives RMB230/t

On Tuesday, May 24, the average alumina spot price in China has stopped at RMB 2,996 per tonne, declining by RMB 4 per tonne, as found in the SMM data. The alumina price in Henan has also dropped by RMB 10 per tonne to halt at RMB 3,060 per tonne. A00 aluminium ingot price has plummeted after four...

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