Global Semiconductor Market Bifurcates as Sanctions Spur China’s Self-Reliance
A deep fissure is splitting the global semiconductor market into two distinct ecosystems, a direct consequence of the intensifying US-China tech rivalry. Ironically, US sanctions are only fanning the flames of China’s drive for self-reliance in advanced chip technology. The numbers speak for themselves: NVIDIA’s share in China’s AI chip market, once a staggering 90%, is on track to collapse to roughly 50% by early 2026, a clear signal of this irreversible divergence.
Washington’s ‘small yard, high fence’ strategy escalated in December 2024, with intensified export controls targeting 140 Chinese firms. These restrictions choke off access to advanced semiconductors, high-bandwidth memory (HBM), and critical manufacturing equipment for etching, deposition, and lithography. The objective is unambiguous: slow China’s ascent in artificial intelligence (AI) and supercomputing, buying precious time for the US and its allies to extend their technological lead.
But these very sanctions have galvanized Beijing’s resolve. Fueled by massive state-backed investment, China is aggressively localizing its entire semiconductor ecosystem. The results are already tangible. China’s self-sufficiency rate for semiconductor equipment surged from 25% in 2024 to 35% by the end of 2025, blowing past its initial 30% target. Domestic champion NAURA, for instance, broke into the top ten global semiconductor equipment vendors in 2024, ranking eighth, while firms like AMEC and Piotech are demonstrating impressive gains in etching and thin-film deposition technologies.
On the manufacturing front, the progress is just as striking. SMIC cemented its position as the world’s third-largest foundry in 2025 with a 5.3% market share. Working with SMIC’s N+2 and N+3 processes, Huawei has managed to produce 7nm chips (for the 2022 Mate 60) and even 5nm chips (in 2024), despite grappling with significant yield and cost hurdles. Huawei is also pushing the envelope with novel techniques like ‘LogicFolding’ to increase transistor density without relying solely on smaller nodes. In a more audacious move, a Shenzhen-based lab, reportedly with help from former ASML engineers, reverse-engineered and completed a prototype EUV lithography system in early 2025. While industrial-scale production remains years away—likely not before 2028-2030—it’s a stark signal of China’s relentless drive to overcome the EUV technology barrier.
China’s ‘chip ascendancy’ is most potent in mature node processes (28nm and larger). Having captured 33% of the global mature node market in 2023, the nation is projected to command a formidable 39-40% of worldwide production capacity by 2026. This rapid expansion is squeezing established players like Taiwan’s UMC and America’s GlobalFoundries, fueling serious concerns about a looming oversupply and brutal price wars in segments like commodity DRAM and power management ICs.
This great decoupling poses immense challenges for global semiconductor giants. ASML, for one, projects its China business will shrink to just 20% of total net sales in 2025—a precipitous fall from 47% in the third quarter of 2024. A hypothetical full decoupling scenario paints an even starker picture, potentially wiping out $77 billion in sales for US firms, though South Korean, European, Taiwanese, and Japanese companies could stand to gain from the reshuffle.
The ‘hyper-polarization’ of the semiconductor world is no longer a forecast; it is the new reality. The era of a single, integrated global supply chain is over. For investors, this demands a meticulous analysis of the key players and the pace of self-reliance within each competing bloc. Re-evaluating supply chain diversification and technology partnerships is now non-negotiable, requiring close attention to China’s domestic market growth, the escalating competition in mature nodes, and the potential for unexpected breakthroughs in advanced technologies.
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