https://www.engineeringnews.co.za

Receive our free daily newsletter:

Hillside Aluminium

Hillside Aluminium is an aluminium smelter located in Richards Bay, KwaZulu-Natal, South Africa. The facility is owned and operated by South32, a diversified mining and metals company that was spun off from BHP in 2015. Hillside is one of the largest aluminium smelters in the world, with an annual production capacity of about 720 000 tonnes of primary aluminium. The smelter uses electrolytic reduction technology to convert alumina into aluminium metal, a process that requires substantial electricity supply. Historically, the facility has relied on power from Eskom, South Africa's state-owned electricity utility, under long-term supply agreements. The smelter plays a significant role in the regional economy, providing employment and supporting downstream manufacturing industries. In recent years, Hillside has been at the centre of discussions around energy security, decarbonisation and the transition to renewable energy sources, as South32 explores options to reduce the carbon intensity of its aluminium production. The facility was commissioned in 1995 and has undergone various expansions and efficiency improvements since then. Hillside remains a strategic asset for South Africa's metals sector and a key component of South32's global aluminium portfolio.

Latest Articles in 60 Seconds

South32 agrees to sell Hillside Aluminium to Alcoa for up to $5.6-billion

South32 has signed a binding conditional agreement to sell its aluminium, alumina and bauxite portfolio, including Hillside Aluminium and the idled Bayside smelter property in KwaZulu-Natal, to New York-listed Alcoa for an upfront $4.1-billion, plus a contingent value right of up to $750-million. The deal, which also includes Australia's Boddington mine and Worsley refinery and Brazil's Alumar and Mineração Rio do Norte assets, excludes South32's Mozal smelter in Mozambique and will make Alcoa the world's largest bauxite miner, lifting its aluminium smelting capacity by 26%.

Alcoa says Hillside will be 'cash flow accretive immediately'

CEO William Oplinger says Hillside, which generated about $2-billion in revenue and $200-million in earnings before interest, tax, depreciation and amortisation in 2025, uses the same AP 30 smelting technology Alcoa operates elsewhere and offers stable, predictable production. South32 COO Africa Noel Pillay says Alcoa, as a dedicated aluminium producer, is well positioned to continue supporting local jobs and communities.

Power contract runs to 2031, repowering talks to follow

Hillside's electricity agreement with Eskom, covering 1 140 MW of continuous draw, runs through 2031, and Oplinger says Alcoa is confident it can repower the smelter effectively once work begins later this decade.

Hillside Aluminium Updates


New South32 CEO Matt Daley.
New South32 CEO sees strong growth ahead in zinc, lead, silver, copper
3rd July 2026 By: Martin Creamer

Being a premier base metals-focused business with strong growth potential is the vision for South32 of new CEO Matt Daley. “We've got around 55% production growth over the next handful of years in... 


Hillside Aluminium, Sibanye-Stillwater, DRDGOLD make headlines
Hillside Aluminium, Sibanye-Stillwater, DRDGOLD make headlines
3rd July 2026

Mining Weekly Editor Martin Creamer discusses South32’s conditional agreement to sell Hillside Aluminium to Alcoa; Sibanye-Stillwater calling for new longer-term platinum group metal applications;... 


South Africa's Hillside Aluminium in KwaZulu-Natal.
South32 deal enabling Alcoa to surpass Rio as world’s biggest bauxite miner
2nd July 2026 By: Martin Creamer

With the acquisition of South32’s aluminium assets, Alcoa will surpass Rio Tinto to become the world's largest bauxite mining company on an equity-attributable production basis, with global share... 


Alcoa President and CEO Bill Oplinger.
Alcoa sees South Africa’s Hillside Aluminium being 'cash flow accretive immediately'
2nd July 2026 By: Martin Creamer

This asset adds scale to our smelting portfolio in a way that is expected to be cash flow accretive immediately, Alcoa Corporation President and CEO William (Bill) F Oplinger said of South Africa’s... 


South32 COO Africa Noel Pillay.
Alcoa is well positioned to operate South Africa’s Hillside Aluminium, says Pillay
1st July 2026 By: Martin Creamer

As a global producer of materials across the aluminium value chain, Alcoa Corporation is well positioned to operate South Africa’s Hillside Aluminium business into the future, South32 COO Africa... 


Photo of Martin Creamer
Positive way Hillside Aluminium is working with Eskom is highly commendable
22nd May 2026 By: Martin Creamer

The positive manner in which Hillside Aluminium is working with Eskom to ensure the longevity of aluminium production in South Africa is highly commendable. A remarkable aspect of the collaboration... 




POWER POSER: The Hillside Aluminium smelter in KwaZulu-Natal marked its thirtieth anniversary this month, while indicating that it is seeking another competitive long-term electricity agreement to sustain operations. Hillside’s current negotiated pricing agreement has been key to the business, but has also proved controversial for its opacity and for having been sustained while other consumers faced steep hikes and power cuts. As with other electricity intensive operations in South Africa, Hillside wants both a low tariff and progressively cleaner supply.
POWER POSER:
22nd May 2026

The Hillside Aluminium smelter in KwaZulu-Natal marked its thirtieth anniversary this month, while indicating that it is seeking another competitive long-term electricity agreement to sustain... 


South32 COO Noel Pillay
Aluminium poised to support low-carbon future, support energy transition
25th February 2026 By: Sabrina Jardim

Aluminium is going to be very important going forward, supporting a low-carbon future for the planet, which is why it is so advantageous for South Africa to have an upstream smelter in the country... 


Aluminium smelting is electricity intensive.
South32, Eskom jointly exploring post-2031 power options for Hillside Aluminium
23rd January 2026 By: Martin Creamer

Studies being undertaken on the future power source for South32’s Hillside Aluminium beyond 2031 are taking place amid awareness of the different energy levers that can potentially be pulled. The... 


South32 Arctic and Bornite projects.
South32 targeting Arctic project in Alaska with joint venture partner
22nd January 2026 By: Martin Creamer

Johannesburg Stock Exchange-listed South32 is targeting the copper-dominant Arctic project in the Ambler mining district of north-western Alaska with its Canada-based 50:50 joint venture (JV)... 


Aluminium smelting is electricity intensive.
South32, Eskom jointly exploring post-2031 power options for Hillside Aluminium
19th December 2025 By: Martin Creamer

Studies being undertaken on the future power source for South32’s Hillside Aluminium beyond 2031 are taking place amid awareness of the different energy levers that can potentially be pulled. The... 


South Africa's expansive Hillside Aluminium in Richards Bay.
US has lost three-quarters of its aluminium smelters, Bank of America reports
11th December 2025 By: Martin Creamer

Bank of America Global Research yesterday reported that the US has lost three-quarters of its aluminium smelters, China has capped its aluminium production, US consumers are now having to pay the... 


Hillside Aluminium manager external affairs Craig Ullbricht; Hillside Aluminium marketing manager Njabulo Dlamini; Hillside Aluminium VPO Calvin Mkhabela; Hillside Aluminium finance manager Talhal Patel; and Hillside Aluminium technical director Adriano de Jesus
Hillside Aluminium pledges R200m to boost Richards Bay manufacturing
28th November 2025 By: Sabrina Jardim

Diversified miner South32’s Hillside Aluminium subsidiary has partnered with the Automotive Industry Transformation Fund (AITF) and the Department of Trade, Industry and Competition (dtic) to... 


Hillside Aluminium manager external affairs Craig Ullbricht; Hillside Aluminium marketing manager Njabulo Dlamini; Hillside Aluminium VPO Calvin Mkhabela; Hillside Aluminium finance manager Talhal Patel; and Hillside Aluminium technical director Adriano de Jesus
Hillside Aluminium to provide R200m funding to support manufacturing in Richards Bay
12th November 2025 By: Sabrina Jardim

Diversified miner South32’s Hillside Aluminium subsidiary has partnered with the Automotive Industry Transformation Fund (AITF) and the Department of Trade, Industry and Competition (dtic) to... 


Hillside Aluminium in Richards Bay, KwaZulu-Natal.
South Africa’s Hillside aluminium production holds steady as smelter tests capacity
7th November 2025 By: Martin Creamer

In the three months to September 30, production at South Africa’s Hillside Aluminium in Richards Bay, KwaZulu-Natal, increased by 1% to 181 000 t amid the smelter continuing to test maximum... 


Photo of Martin Creamer
Southern Palladium, Sibanye-Stillwater, Hillside Aluminium make headlines
24th October 2025

Mining Weekly Editor Martin Creamer discusses Southern Palladium’s A$20-million raise to ramp up work at its Bengwenyama PGM project in Limpopo; Sibanye-Stillwater’s commitment to community... 


Hillside Aluminium in Richards Bay, KwaZulu-Natal.
South Africa’s Hillside aluminium production holds steady as smelter tests capacity
21st October 2025 By: Martin Creamer

In the three months to September 30, production at South Africa’s Hillside Aluminium in Richards Bay, KwaZulu-Natal, increased by 1% to 181 000 t amid the smelter continuing to test maximum... 


1

Option 1 (equivalent of R125 a month):

Receive a weekly copy of Creamer Media's Engineering News & Mining Weekly magazine
(print copy for those in South Africa and e-magazine for those outside of South Africa)
Receive daily email newsletters
Access to full search results
Access archive of magazine back copies
Access to Projects in Progress
Access to ONE Research Report of your choice in PDF format

Option 2 (equivalent of R375 a month):

All benefits from Option 1
PLUS
Access to Creamer Media's Research Channel Africa for ALL Research Reports, in PDF format, on various industrial and mining sectors including Electricity; Water; Energy Transition; Hydrogen; Roads, Rail and Ports; Coal; Gold; Platinum; Battery Metals; etc.

Already a subscriber?

Forgotten your password?

MAGAZINE & ONLINE

SUBSCRIBE

RESEARCH CHANNEL AFRICA

SUBSCRIBE

CORPORATE PACKAGES

CLICK FOR A QUOTATION







301

pqt: 0.077s - ct: 0.134s - 266pq - 2rq
Subscribe Now