Key Republican urges US to stop any advanced chips from reaching sanctioned Chinese firms

• The Biden rule was created after Chinese chip designer Sophgo obtained chips manufactured at TSMC that were later found in AI processors marketed by sanctioned Huawei
• Trump's administration announced it would not enforce another Biden-era chip regulation, creating uncertainty about whether the chip manufacturer rule will be applied
• Multiple Republican lawmakers, including Senator Jim Banks and Representative Bill Huizenga, have expressed similar concerns about advanced AI chips reaching Chinese companies

Summary

Republican Congressman John Moolenaar, chair of the House Select Committee on China, is urging the Trump administration to enforce Biden-era regulations preventing advanced logic chips from reaching sanctioned Chinese firms. The appeal, made in a Thursday letter to Commerce Department official Jeffrey Kessler, highlights growing bipartisan congressional concern over the administration's lenient approach to chip exports to China.

Key Background:

In January 2025, the Biden administration implemented a rule requiring chip manufacturers to scrutinize orders from companies potentially serving as fronts for untrusted Chinese firms. This followed revelations that Chinese chip designer Sophgo had procured chips manufactured by TSMC that ended up in AI processors sold by heavily-sanctioned Huawei.

Current Situation:

After Trump took office, his administration announced it would not enforce another Biden-era chip regulation, creating uncertainty about related measures. Moolenaar described the manufacturer scrutiny rule as "a critical step in preventing [China] from accessing high-end U.S. chips and preserving America's technological edge."

Market Implications:

The letter warns that failure to enforce these rules on major chip manufacturers like TSMC could "dramatically increase the risk of another SophGo-like export control failure." This represents mounting Republican pressure on Trump's chip policy, with Senators Jim Banks and Representative Bill Huizenga previously expressing similar concerns. Trump's decision to allow Nvidia to sell advanced AI chips to China has also drawn criticism.

Companies Involved: TSMC (world's largest chip manufacturer), Huawei, Sophgo, Nvidia

None of the mentioned companies responded to requests for comment. The situation underscores ongoing tensions between maintaining U.S. technological leadership and commercial chip industry interests.