How Sasol Was Built: Etienne Rousseau, Sasolburg and Secunda
How Etienne Rousseau built state-backed Sasol, opened Sasolburg, expanded through Secunda, and moved the group from public ownership to the JSE in 1979.
How was Sasol built?
Sasol began as a state-backed industrial project that aimed to make liquid fuels from South African coal. [1][2]
Chemical engineer Etienne Rousseau shaped the proposal, became the first employee and led the company as its first managing director. [1]
The first production base rose at Sasolburg during the 1950s. A much larger complex followed at Secunda during the next major expansion. [1][2]
The group later introduced private shareholders through its 1979 JSE listing. It remains publicly traded, with no majority shareholder disclosed in 2026. [3][4]
The idea existed before the company
Anglovaal applied for an oil-from-coal licence in 1945. Rousseau worked on the project from 1946 while the proposal moved through state review. [1]
He joined the Liquid Fuel and Oil Industry Advisory Board on 13 January 1948. The licence was issued on 29 July 1949. [1]
Rousseau concluded that the project required national support. The scale, risk and infrastructure needs were larger than a normal private industrial investment. [1]
Anglovaal then transferred its licence and coal rights to an interim committee. Government, the IDC and Anglovaal took part in that structure. [1]
Etienne Rousseau’s company-builder role
In February 1950, Rousseau was asked to become managing director of the company that would carry the project. [1]
He proposed the working name South African Synthetic Oil Limited, shortened to SASOL. The legal company used a longer coal, oil and gas name. [1]
Sasol describes Rousseau as its father and first employee. Those descriptions concern formation and leadership, not personal ownership of the modern listed group. [1][4]
His task joined engineering, finance and public policy. He had to turn a licensed concept into a company, production site and working industrial process. [1]
A government-sponsored public company
The South African Coal, Oil and Gas Corporation was established on 26 September 1950. Sasol describes it as a government-sponsored public company. [1]
The Industrial Development Corporation formed part of the interim structure. The IDC had been established in 1940 under national legislation. [1][7]
State sponsorship gave the venture institutional backing. It did not mean Rousseau personally owned the project because he led its creation. [1]
The distinction matters. A founder can shape a company without holding majority equity, and a state can finance industry without managing each plant. [1][7]
Sasolburg created the first industrial base
Sasol’s first offices opened during early 1951 at the Zevenfontein farmhouse. Mining preparations at Sigma Colliery began on 16 October that year. [1]
Construction of the Sasolburg plant started in mid-1952. Production units began operating in 1954, and the first phase finished by late 1955. [1]
The project required more than factory equipment. Housing, services, coal supply and transport had to support a new industrial community. [1]
Sasolburg therefore became both a production base and a company town. Its growth connected the industrial plant with a wider local economy. [1]
The process combined imported systems
The first complex did not rely on one complete technology package. Sasol combined processes supplied through different international engineering relationships. [1]
The Sasolburg design used Kellogg Synthol units and Ruhrchemie-Lurgi Arge equipment. The combined route converted coal-derived gas into liquid products. [1]
Integration created technical difficulties during commissioning. Sasol’s own history records long operating problems before the plant reached stable performance. [1]
The experience also created internal engineering knowledge. Later expansion could draw on lessons from construction, operation and process improvement at Sasolburg. [1]
First petrol in 1955
Sasol records 23 August 1955 as the date when the first petrol flowed from the plant. [1]
That milestone showed that the integrated chain could produce saleable fuel. It did not mean every commercial or technical problem had ended. [1]
The company continued to improve its processes and expand output. Sasolburg later changed towards higher-value chemicals and used natural gas from 2004. [1][2]
The original coal-to-liquids project therefore became a platform for a broader energy and chemicals business. [1]
Secunda became the second industrial build
South Africa decided in 1974 to develop a second synthetic-fuels site. The project responded to fuel-security concerns and rising energy demand. [1]
Secunda was proclaimed as a town on 28 June 1976. Construction of Sasol Two proceeded alongside the new urban settlement. [1][2]
Sasol Two was completed in July 1980. Sasol Three followed and the operations later formed one integrated Secunda production hub. [1][2]
A second build multiplied the group’s industrial scale. It also shifted the centre of synthetic-fuels production from one site to a two-site system. [1]
What Secunda does in 2026
Sasol described Secunda in August 2026 as an integrated chain that converts feedstocks into synthesis gas, fuels, chemicals and pipeline gas. [6]
The chain uses Fischer-Tropsch conversion within a much larger system of mining, gasification, refining and chemical production. [1][6]
That description concerns current operations. It should not be read as evidence that today’s feedstocks, products or equipment match the original design. [6]
Secunda’s scale reflects successive investment phases rather than one construction event. Sasol Two and Sasol Three were separate projects before integration. [1][2]
The 1979 listing changed the ownership structure
Sasol listed on the JSE in October 1979. The private placement was fully subscribed and the public offer was 31 times oversubscribed. [3]
The listing introduced private share ownership into a company created through state sponsorship. It did not erase the earlier public financing history. [3][1]
Sasol’s 2026 financial statements give 31 October 1979 as the listing date. They also record a New York ADR listing from 9 April 2003. [4]
A listing widened economic ownership and voting participation. Directors and executives still received management authority through corporate appointments. [3][4]
Ownership and voting interests in 2026
At 30 June 2026, Sasol reported 644,229,956 public ordinary shares. They represented 99.45% of ordinary shares in issue. [4]
The Government Employees Pension Fund held 124,641,092 securities, equal to 19.24%. Sasol identified it as a beneficial owner, not management. [4]
Konoil, an IDC vehicle, held 53,266,887 securities, equal to 8.22%. The financial statements classify this as a government beneficial holding. [4]
The Public Investment Corporation managed 16.88% of issued securities. Most of that amount was managed for the pension fund. [4]
Investment management is not the same as beneficial ownership. The statements do not show any shareholder holding more than half of Sasol’s securities. [4]
Management control is a separate relationship
Simon Baloyi was Sasol’s president and chief executive when this article was reviewed on 24 October 2026. He took office on 1 April 2024. [5]
Before that appointment, Baloyi oversaw energy operations and technology. His portfolio included Sasolburg, Secunda and the Natref refinery. [5]
Sasol’s 2026 statements record 28,220 securities for Baloyi. That holding is tiny compared with the issued share base. [4]
His authority comes from executive and board appointments. It does not come from majority equity or the personal founder role held by Rousseau. [5][4]
The main corporate relationships
These records separate the project origin, state finance, first operating base and later expansion hub. [1][4]
| Entity | Role | Key date | Ownership or control point | Sources |
|---|---|---|---|---|
| Sasol | Listed parent company | Established 26 September 1950 | No majority holder shown at 30 June 2026 | [1] [4] |
| Anglovaal | Developed the licence proposal and transferred rights | Licence issued 29 July 1949 | Historical project role, not current control | [1] |
| Industrial Development Corporation | State development financier and early project participant | Established in 1940 | Konoil held 8.22% at 30 June 2026 | [7] [4] |
| Sasolburg Operations | First production base | First petrol on 23 August 1955 | Operating site within Sasol | [1] |
| Secunda Operations | Large integrated fuels and chemicals hub | Sasol Two completed in July 1980 | Operating site within Sasol | [1] [6] |
What Sasol’s history shows
Sasol’s formation joined a company builder, a private mining group, state institutions and international technology suppliers. [1]
Sasolburg proved the industrial concept and created operating knowledge. Secunda then reproduced the model at a much larger scale. [1][2]
The 1979 listing changed the capital structure without changing the company’s origin. Current ownership remains spread among public and institutional investors. [3][4]
Founder status, equity, voting rights and management authority describe different relationships. Keeping them separate makes the corporate record more accurate. [1][4]
Frequently asked questions
Who founded Sasol? Sasol describes Etienne Rousseau as its father and first employee. He became the founding managing director. [1]
When was Sasol established? The company was established on 26 September 1950 as a government-sponsored public company. [1]
When did Sasol make its first petrol? Sasol records the first flow at Sasolburg on 23 August 1955. [1]
When did Sasol list? It listed on the JSE in October 1979 and later added a New York ADR listing in 2003. [3][4]
Who controls Sasol? No majority shareholder appears in the 2026 statements. The board and executives exercise delegated management authority. [4][5]
Sources
- Sasol, Celebrating our heritage. Original source. Accessed 2026-10-24. ↩
- Sasol, Historical milestones. Original source. Accessed 2026-10-24. ↩
- Sasol, JSE listing. Original source. Accessed 2026-10-24. ↩
- Sasol, Annual Financial Statements for the year ended 30 June 2026, 2026-09-01. Original source. Accessed 2026-10-24. ↩
- Sasol, Leadership. Original source. Accessed 2026-10-24. ↩
- Sasol, President Ramaphosa visits Sasol Secunda, 2026-08-06. Original source. Accessed 2026-10-24. ↩
- Industrial Development Corporation, About us. Original source. Accessed 2026-10-24. ↩