Processing & Refining

c. 3300 BCE · around 5,300 years ago

Metalworkers in the Near East learned to alloy smelted copper with tin to make bronze

Combining two separately extracted and smelted metals produced an alloy far harder and more useful than either alone, an early processing innovation important enough to give its name to an entire age of human technological development.

c. 1200 BCE · around 3,200 years ago

Iron smelters in Anatolia developed bloomery techniques that spread the use of iron tools and weapons

Smiths in and around the Hittite realm learned to smelt iron ore into workable metal at temperatures achievable in simple furnaces, a processing breakthrough that, as the knowledge spread over following centuries, gradually displaced bronze as the dominant material for tools and weapons.

1856 · 170 years ago

Henry Bessemer patented a process for the mass production of steel

The Bessemer converter blew air through molten pig iron to remove impurities quickly and cheaply, cutting the cost of steel dramatically and making it, rather than iron, the basic structural material of railways, ships and buildings worldwide.

1856 · 170 years ago

Ignacy Łukasiewicz built one of the world's first modern oil refineries in Galicia

The Polish chemist and pharmacist distilled crude oil into kerosene for a lamp he had also helped design, laying early groundwork for an oil refining industry that later grew around Baku, Pennsylvania and the Gulf, decades before it became a global industrial mainstay.

1886 · 140 years ago

Charles Martin Hall and Paul Héroult independently invented the electrolytic process for refining aluminium

Working separately in the United States and France, the two chemists found a way to extract aluminium from alumina using electric current, turning a metal once so costly it was displayed alongside jewellery into an industrial commodity within a few decades.

1911 · 115 years ago

The US Supreme Court ordered the break-up of Standard Oil

The ruling split John D. Rockefeller's near-monopoly over American oil refining into more than thirty separate companies, establishing antitrust law as a permanent check on concentrated control of processing industries and reshaping the corporate landscape of the oil business for a century.

1928 · 98 years ago

Major oil companies secretly agreed to divide up world refining and marketing markets

Executives from what became Anglo-Persian, Shell and Standard Oil of New Jersey met at Achnacarry Castle in Scotland and agreed to limit competition and hold market shares roughly fixed, a cartel arrangement that shaped the structure of the international oil industry for decades.

1942 · 84 years ago

Fluid catalytic cracking transformed oil refining

The new process, commercialised in the United States on the eve of American entry into the Second World War, broke heavy oil molecules into petrol and aviation fuel far more efficiently than earlier methods, and became the standard technology refineries still use to maximise valuable fuel output from a barrel of crude.

1955 onward · 71 years ago

Japan built vast coastal refining and petrochemical complexes despite having almost no domestic oil

Industrial zones such as Keihin and Keiyo imported crude from the Middle East by tanker and turned it into fuel and petrochemical feedstock at huge scale, making a resource-poor country one of the world's leading refining nations within a generation.

Early 2000s onward · over 20 years ago

China became the dominant global processor of metals and minerals

Massive investment in smelting, refining and chemical separation capacity, initially for steel and aluminium and later extended to lithium, cobalt and rare earths, gave China a central position in turning raw materials into usable industrial inputs that few competitors could match.

Early 2026 · 6 months ago

The Dangote refinery in Nigeria kept running at high utilisation and displacing fuel imports across West Africa

The single-train complex, the largest of its kind in the world, supplied a growing share of Nigeria's own petrol and diesel and began exporting refined products to neighbouring countries, a marked change for a continent that has long imported most of its fuel despite producing crude.

• Nigeria's older state refineries continued to struggle to return to reliable operation

2026 to date · this year

Ukraine kept striking Russian oil refineries with long-range drones

Repeated attacks on refining and export infrastructure deep inside Russia cut into the country's capacity to process crude into petrol and diesel, at times causing domestic fuel shortages and forcing Moscow to restrict fuel exports to protect the home market.

• Russia responded by banning petrol exports for periods

2025 · last year

Indonesia kept adding nickel processing capacity, including plants that produce battery-grade material

New high-pressure acid leach plants, mostly built with Chinese partners, expanded the country's ability to turn nickel ore into intermediate products usable in electric vehicle batteries rather than only in stainless steel, deepening its position in battery supply chains.

Mid-2025 · last year

The European Union moved to restrict imports of fuel refined from Russian crude in third countries

New sanctions measures targeted refined products made from Russian oil and shipped on through countries such as India, aiming to close a route that had let Russian crude reach European markets indirectly after direct imports were banned.

• Indian refiners denied breaching any sanctions

Mid-2025 · last year

China widened restrictions on exporting rare earth processing and magnet-making technology

Building on a 2023 ban on exporting extraction and separation know-how, further controls made it harder for foreign companies to license Chinese refining processes, reinforcing a near-monopoly built up over decades in the environmentally difficult chemistry of separating individual rare earth elements.

Early 2024 · 2 years ago

The Democratic Republic of Congo and Zambia pushed to attract more copper and cobalt refining investment at home

Both governments offered incentives for smelters and refineries near their mines, seeking to capture more value from processing rather than exporting concentrate, though most investment interest still came from Chinese firms already dominant in downstream battery metal supply chains.

2024 · 2 years ago

Saudi Arabia's Ma'aden expanded its phosphate and metals processing complexes

The state mining company pressed ahead with new processing plants at its Ras Al-Khair industrial city, extending value-added production of phosphate fertilisers and other processed minerals as part of the kingdom's push to process more of what it mines rather than export raw ore.

2024 · 2 years ago

Malaysia kept renewing Lynas Rare Earths' operating licence on tightened terms

The government continued to require the Australian company's Malaysian plant, the largest rare earth processing facility outside China, to remove low-level radioactive waste from the country rather than store it on site, a long-running condition the company has repeatedly sought to soften.

Late 2024 · 2 years ago

South Korean petrochemical producers idled or restructured naphtha cracking capacity

Companies including major refiners' chemical arms shut or mothballed ageing plants as a wave of new, larger and cheaper Chinese capacity pushed regional margins to unprofitable levels, part of a broader reshaping of Asia's petrochemical industry around Chinese self-sufficiency.

Mid-2024 · 2 years ago

The European Union brought the Critical Raw Materials Act into force

The law set benchmarks for the bloc to process at least two-fifths of the critical minerals it consumes each year within Europe by 2030, and began designating strategic projects eligible for faster permitting and financing support.