Semiconductor Tensions Chip Away at Cross-Strait Relations

Glendon

Summary:

The escalating US–China technology rivalry and global chip shortage make Taiwan's role as a leading global supplier of semiconductors strategically and economically important to both powers.

US House of Representatives Speaker Nancy Pelosi's visit to Taiwan and President Joe Biden's pledge that the United States would defend the island have escalated tensions in the Taiwan Strait. At the 20th National Congress of the Chinese Communist Party, President Xi Jinping stressed the importance of reunifying with Taiwan.

The escalating US–China technology rivalry and global chip shortage make Taiwan's role as a leading global supplier of semiconductors strategically and economically important to both powers.

The question is what will happen to global chip production in the event of a cross-Strait military conflict. COVID-19 lockdowns have already disrupted global semiconductor supply. Since global semiconductor production capacity is highly concentrated in Asia, including in Taiwan, South Korea and China, a cross-Strait military conflict will crimp the global production of semiconductors. In a military confrontation, China might impose an embargo on Taiwan's exports of critical technologies.

Taiwan is home to several of the world's largest semiconductor foundries. Together they represent more than 63 per cent of the global market share. The world is heavily dependent on the Taiwan Semiconductor Manufacturing Company (TSMC), which produces more than 90 per cent of the world's most advanced semiconductors, including 5-nanometre chips.

Supply disruptions will directly impact Apple — TMSC's largest customer — Nvidia, Qualcomm and AMD. It will also disrupt leading US technology companies specialised in computer processors and chipsets that power modern devices, from consumer electronics and medical equipment to artificial intelligence and military technologies.

With supplies from Taiwan crimped in the event of a cross-Strait conflict, companies may have to look to South Korea for replacement chips. Samsung is the world's second largest semiconductor foundry by revenue, accounting for approximately 17 per cent of the global market — a 35 per cent smaller share than TSMC. But the production capacity of South Korean foundries is unlikely to meet global demand and Seoul could be drawn into the conflict should the United States get involved.

Chinese foundries produce around 8 per cent of the world's semiconductors. But even if Chinese companies maintain their semiconductor production in a cross-Strait conflict, the chips they can mass produce are mainly 28-nanometre and 14-nanometre chips. These are less sophisticated and powerful than the 7-nanometre and 5-nanometre made by TSMC and Samsung.

While there were reports in August 2022 that China's Semiconductor Manufacturing International Corporation had made a great leap in successfully developing 7-nanometre chips, the company's mass production capacity remains unknown. Indeed, the global semiconductor supply chain is complex and involves different stages of manufacturing demanding high-, medium- and low-skilled inputs. Any disruption will have knock-on effects on upstream and downstream industries.

Southeast Asian countries are also involved in semiconductor manufacturing. Malaysia packages and tests newly made semiconductors, accounting for 13 per cent of the global market share. Singapore operates fabrication plants for US-based Micron and GlobalFoundries and several assembly and testing facilities for Taiwanese companies.

Many industries rely on a stable supply of semiconductors, exposing them to the effects of a cross-Strait conflict. The automotive industry is still battling the global chip shortage that emerged in 2020. Over the past few years, automakers have competed with other consumer electronics providers over chips made in Asia. Some automotive giants have already cut production, while others expect the chip crunch to last into 2024. A military conflict involving the global hub of chip production will further strain the industry, creating knock-on effects on other parts of the automotive supply chain.

The effects of a cross-Strait conflict can be mitigated by strengthening supply chain resiliency. Some countries and companies have already started diversifying and securing their semiconductor supply chains. But diversification comes with a cost. The US Chips and Science Act uses federal subsidies to lure technology firms — including US, Taiwanese and South Korean companies — to invest in cutting-edge chip development and manufacturing in the United States. Companies are not allowed to build advanced chipmaking facilities in China for 10 years to receive these subsidies.

While reshoring and friend-shoring incentives may help stabilise the supply of semiconductors, the incentives push the world further away from multilateral trade toward geopolitical trade blocs. The semiconductor sector is the first to experience this shift, but it will not be the last.

A cross-Strait military conflict would be a lose-lose situation for the warring parties and the world. Given the high stakes, leaders in the United States and China should maintain continuous dialogue to communicate their interests as well as differences. The United States should refrain from acts that would provoke Beijing's suspicion of US support for Taiwanese independence.

Maintaining the status quo is key to keeping the peace across the Strait. To that end, the United States should continue to work with allies in the region, including Japan, South Korea, the Philippines and Australia, to share intelligence and militarily prepare for any future conflict.

Source: eastasiaforum

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Semiconductor Tensions Chip Away at Cross-Strait Relations

Source: eastasiaforum

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