The World
A single island produces most of the world's advanced chips. When supply breaks, everything from cars to phones to defence systems feels the strain. Here's how the world's most critical supply chain works.
The computer chip is the quietest force reshaping global power. Most people never see one, yet they sit inside everything: your phone, car, washing machine, missile system, and hospital scanner. For years, the world assumed chip supply was infinite. Then it wasn't. In 2021 and 2022, a global shortage revealed a brittle truth: the planet's most advanced semiconductors flow from a single island in the Taiwan Strait, and when that supply tightens, entire industries grind to a halt.
Understanding how chips move through the global economy is essential for Australians, because our manufacturing, defence, agriculture, and services sectors all depend on unbroken access to them. A chip drought doesn't just affect gadget prices; it reshapes Australia's economic standing.
Taiwan Semiconductor Manufacturing Company, or TSMC, produces more than half of the world's semiconductors and over 90 per cent of the most advanced chips. No other single facility on earth holds such concentrated power over global technology. South Korea's Samsung and SK Hynix are secondary players. Intel in the United States produces advanced chips too, but lags behind TSMC in cutting-edge capacity. For most of the past decade, TSMC ran so far ahead that the world didn't ask what would happen if Taiwanese supply broke.
The reason TSMC dominates is not accident. Taiwan invested in semiconductor manufacturing in the 1980s and 1990s when most wealthy nations abandoned it as unglamorous. Taiwanese engineers perfected the process of shrinking transistors to minuscule dimensions, reducing costs and improving speed. TSMC became the world's foundry: companies like Apple, Nvidia, and Qualcomm designed chips, then outsourced manufacturing to Taiwan. This specialisation created efficiency, but it also created a single-point failure.
Chip shortages emerge from misalignment between supply and demand. When the pandemic hit in 2020, consumer demand for laptops and gaming devices spiked as people worked and studied from home. At the same time, factories closed and shipping slowed. TSMC couldn't expand fast enough to meet demand. Automobiles, which consume older, simpler chips, faced acute shortages because carmakers had cancelled orders in 2020 and then couldn't recover lost supply. The shortage cascaded for two years.
But semiconductor supply is fragile in other ways too. A single typhoon in Taiwan can disrupt production for weeks. A geopolitical conflict over Taiwan's status could halt supply entirely. Rising tensions between the United States and China have prompted restrictions on what advanced chips China can buy, distorting global markets. Climate events, political instability, or trade disputes can all tighten supply rapidly.
Since the 2021 shortage, governments and firms have moved to reduce dependence on Taiwan. The United States passed the CHIPS Act, offering subsidies to Intel and other manufacturers to build new fabs on American soil. The European Union is investing in semiconductor capacity to reduce reliance on Asia. South Korea is expanding production. Australia has announced semiconductor ambitions too, though without Taiwan's decades of expertise, any domestic capacity will take years to mature and will remain small by global standards.
TSMC itself is building a factory in Arizona to hedge geopolitical risk. However, replicating TSMC's scale and precision elsewhere takes time and vast capital. A modern chip fab costs more than 10 billion dollars and requires years to build and qualify. The world cannot easily create a second TSMC.
Australia imports nearly all its advanced semiconductors. Our manufacturers, tech companies, and defence contractors all depend on Taiwan's uninterrupted supply. If TSMC were cut off for months, Australian car assembly would pause, telecommunications networks would degrade, and defence-critical systems would face shortages. Australia lacks the skilled workforce and industrial base to manufacture advanced chips domestically in the near term. Instead, Australia's strategy must focus on strengthening supply-chain partnerships with Taiwan and allied nations, investing in chip design capability (where Australian firms already compete globally), and reducing wasteful dependence on chips where possible. The government's interest in semiconductor manufacturing reflects realism: self-sufficiency is impossible, but having some allied capacity outside Taiwan reduces vulnerability.
The global semiconductor supply chain is a marvel of efficiency and a minefield of risk. TSMC's dominance has powered decades of innovation and falling costs, but it has also created a choke point. As geopolitics intensifies and climate threats grow, the world is belatedly building redundancy. For Australia, the lesson is clear: chips are as critical to modern economy as oil once was, and secure access to them shapes our technological future and national security.
This article was compiled by AI and screened before publishing. See our editorial standards.
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