(Bloomberg) -- US Commerce Secretary Howard Lutnick said the Trump administration has been reworking agreements forged with semiconductor makers under the 2022 Chips Act to secure what he called better terms aimed at generating additional domestic investment.

Most Read from Bloomberg

• ICE Moves to DNA-Test Families Targeted for Deportation with New Contract

• The Global Struggle to Build Safer Cars

• NYC Residents Want Safer Streets, Cheaper Housing, Survey Says

• The Buffalo Architect Fighting for Women in Design

• US Housing Agency Vulnerable to Fraud After DOGE Cuts, Documents Warn

Lutnick cited the decision in March by Taiwan Semiconductor Manufacturing Co., a recipient of $6.6 billion in Chips Act grants, to boost its US investment commitment. The company is adding $100 billion to a previous $65 billion pledge, but without any additional funding from the government, Lutnick said.

“Are we renegotiating? Absolutely, for the benefit of the American taxpayer, for sure,” Lutnick said Wednesday at a Senate Appropriations Committee. “We’re getting more value for the same dollars.”

The Commerce secretary even suggested the administration may not follow through on some of the planned awards. “You will see that all the deals are getting better, and the only deals that are not getting done are deals that should have never been done in the first place,” he said.

Read: US Chip Grants in Limbo as Lutnick Pushes Bigger Investments (3)

Trump has urged Congress to repeal the 2022 Chips and Science Act that was a centerpiece of President Joe Biden’s domestic agenda, though Republican and Democratic lawmakers have little desire to revoke a bipartisan law promising $52 billion in subsidies. Lutnick has previously signaled that the Commerce Department might withhold Chips Act grants to press companies to follow in TSMC’s footsteps and expand their planned domestic semiconductor projects.

During his nearly two-hour appearance before the panel, Lutnick addressed a range of issues essential to the semiconductor industry, including the administration’s push to bring to the US more chips-related investment. He defended artificial intelligence deals with the United Arab Emirates unveiled last month during President Donald Trump’s trip to the Middle East, saying the accords were crafted to spur complementary levels of spending in the US.

The path for those AI agreements in the Gulf was opened by the administration’s decision to revoke a regulation launched during President Joe Biden’s final week in office that had drawn strenuous objections from US allies and companies including Nvidia Corp. and Oracle Corp. The so-called AI diffusion rule — aimed at denying China access to advanced semiconductors via third parties — would have taken effect last month and created three broad tiers of access for countries seeking AI chips, an approach that Lutnick assailed a “illogical.”