US Authorities Accuse Chinese Chipmaker SMIC of Supplying Equipment to Iranian Military

• March 27, 2026

The United States government has accused Semiconductor Manufacturing International Corporation (SMIC), a leading Chinese contract chipmaker, of supplying semiconductor manufacturing equipment to Iran’s military. This allegation comes amid ongoing concerns about the use of advanced technology by foreign militaries under sanction regimes.

SMIC’s Status and Sanctions

SMIC was placed on a Pentagon blacklist in the early 2020s, reflecting US apprehensions about the company’s potential role in supporting military applications, particularly those conflicting with US national security interests. This designation led to restrictions aimed at preventing SMIC from acquiring semiconductor manufacturing equipment that relies on American technology.

Despite these restrictive measures, US authorities now contend that SMIC has continued to supply equipment that could support chip production for the Iranian military. The United States has raised alarms over the potential dual-use nature of semiconductor manufacturing technology, which can have both civilian and military applications.

The confirmation of these allegations could have significant implications for international supply chains and global technology governance. Semiconductor equipment is a critical element in the production of modern microchips, which are integral to advanced electronics and increasingly sophisticated defense systems.

Washington’s accusations highlight ongoing tensions in the technology sector, where questions over export controls, technology transfers, and their intersection with geopolitical conflicts remain contentious. The case also underscores the challenges in enforcing sanctions in a highly interconnected global technology ecosystem.

At this stage, pricing, additional details on the specific equipment allegedly supplied, and SMIC’s response to the accusations have not been publicly disclosed. The situation continues to develop as US authorities investigate the full extent of these claims.

The US claims Chinese chip foundry SMIC provided semiconductor manufacturing equipment to Iran’s military despite existing sanctions.