ASML shares declined by over 5% following reports that a Chinese state-backed firm has begun manufacturing deep-ultraviolet lithography machines, challenging the Dutch company's dominance in the global chip market.

Key Points

• ASML stock fell nearly 11% over two days following reports of Chinese progress in domestic lithography machine production.
• China plans to manufacture five deep-ultraviolet (DUV) machines this year, with production expected to scale to 20 units in 2025.
• ASML remains the global leader, projecting shipments of 130 comparable DUV machines throughout the current year.
• The Dutch company is currently restricted by US and Dutch regulations from exporting its most advanced extreme ultraviolet (EUV) technology to China.
• ASML’s EUV machines are critical for high-end semiconductor fabrication, including Elon Musk’s proposed $55 billion Terafab project.

Why it Matters

This development signals a significant step in China's effort to achieve semiconductor self-sufficiency and bypass Western export restrictions on advanced chip-making equipment. While current Chinese production remains in the early stages, it poses a long-term competitive threat to ASML’s market share and the global supply chain for AI-capable hardware.