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Ivan Glasenberg, the South African billionaire and largest individual shareholder in commodities giant Glencore Plc, has watched his company's local fuel arm Astron Energy rebrand its 700th South African service station, extending a takeover of the country's retail fuel market that now reshapes where most motorists fill up.
Astron hit the milestone at a forecourt in KwaZulu-Natal, the company said, adding that it has converted a new site to the Astron brand roughly every day since passing the 500-station mark in mid-2025. The push has turned what was the local Caltex business, acquired from Chevron in 2018, into one of the three largest fuel retail networks in South Africa, a position Glasenberg has publicly backed with capital.
The retail expansion is anchored by a R6 billion ($328 million) investment program announced earlier this year to upgrade Astron's Cape Town refinery, the country's third largest. That facility can process about 100,000 barrels a day of crude into petrol, diesel, jet fuel and bitumen, and is critical at a time when South Africa is increasingly reliant on imported refined products.
Glasenberg, who stepped down as Glencore chief executive officer in 2021 but remains the company's single largest shareholder with a stake of about nine percent, has deep roots in South Africa. He was born and educated in Johannesburg, as is current Glencore chief executive officer Gary Nagle, and the two have prioritized Astron as a flagship African investment at a moment when Glencore's mining business faces a volatile commodity cycle.
Astron operates under a partnership that includes Glencore alongside sovereign and private investors, and has branded the forecourt rollout as one of the largest corporate transformations in South Africa's fuel sector in more than three decades. Much of the conversion work has involved rebranding former Caltex sites and upgrading logistics and convenience offerings to compete with Shell, BP and state-owned rival PetroSA.
The 700-site milestone lands at a delicate moment for South African energy policy. The country's refining capacity has shrunk sharply in recent years as Shell and Engen operations closed or scaled back, leaving Astron and Sasol as the main remaining large-scale refiners. Government officials have flagged refinery investment as essential to reduce imports and stabilize fuel prices.
Astron has said its next target is to push toward the top tier of South Africa's retail fuel brands by network size, with further refinery upgrades and forecourt additions scheduled over the next two years.
