Finvest
SSL Energy and Chemicals · South Africa · Turnaround · Chemicals · Thesis updated July 20, 2026

A cash reset with gas and chemicals risk

01 Running thesis

Reset first, payoff later

Sasol is trying to become simpler and more reliable before asking investors to believe in growth again. The most important near-term win is at Secunda, where the destoning plant reached beneficial operation in December. Better coal quality matters because Secunda is the heart of the South African value chain.

The bull case is clear. If Secunda runs with fewer coal-quality problems, the South African business can keep its cash breakeven low. H1 FY26 came in around $53 per barrel, ahead of management's full-year target range of $60 to $55 per barrel. That gives Sasol more room to pay down debt when oil prices are not strong.

The harder part is International Chemicals. Management had started to show margin progress in FY25, but weaker markets and an unplanned joint venture ethylene cracker outage forced lower FY26 guidance. That makes the chemical reset a watch item, not a proven fix.

The bear case is still serious. Sasol has repeated impairments, debt that is mostly in U.S. dollars while much of its earnings are in rand, and a Mozambique gas cliff after 2028. Deleveraging has also slipped, with the USD 3.0 billion net debt target now more likely in FY28.

Feb 2026H1 FY26 was mixed. Secunda destoning reached beneficial operation and the South African cash breakeven beat target, but International Chemicals guidance was cut and the USD 3.0 billion net debt target moved toward FY28.
Aug 2025The FY2025 Form 20-F confirmed the operating reset and added the Transnet settlement benefit. Sasol recognized R1.6 billion in other operating income and R3.889 billion in historical cost compensation.
Aug 2025FY2025 execution looked better, with International Chemicals margin improving from 6% to 9%, destoning construction completed, and net debt beating the USD 4 billion target. The offset was another ZAR 13 billion impairment and a new U.S. tariff risk.
Feb 2025The thesis became more cautious as Sasol passed the interim dividend, reported more Secunda and Sasolburg impairments, and confirmed there would be no further Mozambique gas extensions after 2028.
Sep 2024The FY2024 Form 20-F added the Zaffra B.V. sustainable aviation fuels joint venture as a future option. It also confirmed the scale of FY2024 remeasurement items at ZAR 75.4 billion.
Aug 2024The starting view was a new CEO reset after large chemicals impairments and rising concern over Mozambique gas depletion. The core question was whether Sasol could stabilize operations before debt and gas risks tightened.
02 Business model

Coal, gas, and price cycles

Sasol makes money by turning coal, natural gas, and other feedstocks into liquid fuels, synthetic fuels, gas, and chemicals. The South African chain is deeply integrated. Mining supplies coal, gas supports the system, and Secunda converts those inputs into fuel and chemical products.

This model can generate cash when plants run well and oil, fuel, and chemical prices are supportive. It can also break quickly. Lower oil prices, weak chemical demand, poor coal quality, refinery downtime, or a weaker rand can all hurt profits.

Management has moved the company into two main operating blocks: Southern Africa Energy and Chemicals, and International Chemicals. The goal is to cut complexity, focus capital, and push each unit to earn its keep.

03 Product portfolio

What Sasol sells

Cash cow

Liquid fuels

Fuels are a core part of the South African business. They are tied to oil prices, refining margins, and Secunda reliability.

Steady

Synthetic fuels

Sasol uses its Fischer-Tropsch technology to make fuel from coal and gas. This is a long-running strength, but it carries emissions and impairment risk.

Steady

Natural gas

Gas from Mozambique supports Sasol's South African customers and internal value chain. The issue is that existing Mozambique resources are running down, with no further extension expected after 2028.

Steady

Base chemicals

These include ethane, ethylene, polyethylene, and other building blocks. They are very sensitive to global demand, feedstock costs, and plant uptime.

Growth engine

Specialty and care chemicals

These include surfactants and raw materials used in detergents, personal care, agriculture, and industry. Sasol is trying to lift margins by focusing on value over volume.

Option

Sustainable aviation fuels

Sasol has a 50% joint venture with Topsoe called Zaffra B.V. It gives the company a future option in lower-carbon fuel technology, but it is not the main cash driver today.

04 Business segments

Two big blocks now

Southern Africa Energy and Chemicals68%declining
International Chemicals32%flat

The mix uses FY2025 external turnover from the Form 20-F segment review. Southern Africa Energy and Chemicals combines Mining, Gas, Fuels, and Chemicals Africa, so the South African chain is the main source of sales.

05 Risk factors

What could go wrong

Chemicals recovery stalls

High impact · Medium odds

International Chemicals still faces weak demand and pricing. Sasol cut FY26 adjusted EBITDA guidance to USD 375 million to USD 450 million and guided margins to 8% to 10%. If the reset does not lift margins, cash generation and asset values remain at risk.

We watchInternational Chemicals adjusted EBITDA, margin guidance, sales volumes, and any new impairment charge.

More asset impairments

High impact · High odds

Sasol has already recorded large write-downs, including ZAR 13 billion in FY25 and further H1 FY26 impairments across Secunda and Mozambique gas. These are noncash charges, but they show that some assets may not earn enough under current price assumptions. Repeated impairments can also hurt investor trust.

We watchRemeasurement items, Secunda liquid fuels CGU disclosures, Mozambique gas impairments, and management's long-term oil and chemical price assumptions.

Mozambique gas cliff after 2028

High impact · High odds

Management has said South Africa will need to move to LNG because there is no more possibility of further extensions from existing Mozambican resources. That transition is complex and could be expensive. Project returns are also pressured by a high WACC rate in Mozambique.

We watchLNG transition milestones, gas supply contracts, Mozambique production profiles, and the 2028 deadline.

Debt currency mismatch

High impact · Medium odds

More than 90% of debt is in U.S. dollars, while much of Sasol's earnings are rand-based. A weaker rand can make debt harder to manage. Management is issuing local bonds to reduce the mismatch, but the risk has not gone away.

We watchNet debt in U.S. dollars, USD/ZAR exchange rates, local bond issuance, and the path to the USD 3.0 billion net debt target.

Policy and tariff pressure

Medium impact · Medium odds

Sasol faces long-term emissions rules in South Africa and trade pressure abroad. A new 30% U.S. tariff creates an estimated unmitigated risk of about USD 60 million for South African chemical exports. These costs could reduce the benefit of the operational reset.

We watchU.S. tariff mitigation, South African emissions rules, carbon tax assumptions, and renewable energy sourcing progress.
06 Quick answers

In one breath

What does Sasol actually do?

Sasol turns coal and natural gas into fuels and chemicals. It also sells international chemicals used in plastics, detergents, personal care, and industrial products.

Why is Secunda so important to Sasol?

Secunda is the center of Sasol's South African value chain. If coal quality improves and the plant runs more smoothly, Sasol can lower its cash breakeven and generate more cash.

When could Sasol bring back a dividend?

The key hurdle is debt. Net debt was USD 3.8 billion in H1 FY26, and management now expects the USD 3.0 billion target to be reached around FY28.

What is the biggest long-term issue for Sasol?

The Mozambique gas transition is one of the biggest issues. Existing gas extensions are not expected after 2028, so Sasol needs a workable LNG solution.