I will work to prevent exported advanced AI chips from ending up in the hands of the Chinese military or other foreign adversaries.

If we're going to export advanced AI chips, we need confidence that they don’t end up in the hands of the Chinese military. We’re continuously seeing examples of Chinese espionage, theft, and diversion over and over again. We can’t allow this to keep happening

Mast said the U.S. must ensure exported advanced AI chips do not end up with the Chinese military and cannot allow continued Chinese espionage, theft, and diversion.

Chairman Mast, HFAC, Advances Chip Security Act | Republican Foreign Affairs Committee
primary · press_release · model gpt-5.5

BIS imposed export controls on advanced computing semiconductor chips, supercomputer end uses, and certain China-linked Entity List transactions. The rule states these systems are used by the PRC for military modernization and that BIS intended to limit the PRC's ability to obtain advanced computing chips or develop AI and supercomputer capabilities contrary to U.S. national security interests.

Official U.S. export controls already targeted advanced computing chips and PRC military/AI use, supporting partial policy delivery, though not specifically attributable to Mast's later individual action.

partial unknown

Federal Register: Implementation of Additional Export Controls: Certain Advanced Computing and Semiconductor Manufacturing Items; Supercomputer and Semiconductor End Use; Entity List Modification
secondary · model gpt-5.5 · confidence 93%

The rule created license requirements for exports, reexports, and in-country transfers of identified advanced computing items to or within the PRC, citing historical diversion of PRC-designed chips to support PRC military modernization and the inherent risk of diversion with advanced computing chips.

The official rule directly addresses the promise's concern that advanced AI-related chips could be diverted to China's military, but it predates the 2026 Mast-specific actions and does not prove full prevention.

partial unknown

Federal Register: Implementation of Additional Export Controls: Certain Advanced Computing and Semiconductor Manufacturing Items; Supercomputer and Semiconductor End Use; Entity List Modification
secondary · model gpt-5.5 · confidence 92%

Axios reported that House Foreign Affairs Committee Chair Brian Mast's AI Overwatch Act would require the administration to notify lawmakers before exporting AI chips to China and other adversaries, and would give Congress power to block those exports.

Mast advanced a concrete legislative proposal aimed at preventing AI chip exports to China and other adversaries, but the report describes a proposal, not enacted law.

partial same_term A for effort

Axios: Exclusive: GOP effort to thwart chip sales to China gains steam
secondary · model gpt-5.5 · confidence 89%

Axios reported that the House Foreign Affairs Committee voted 42-2, with one present, to advance Chair Brian Mast's AI Overwatch Act. The bill would give Congress power to block the Trump administration from exporting AI chips to adversaries and had been introduced by Mast in December.

The committee vote is strong evidence of Mast working on the promise in the same term, but as of this report the bill still needed floor action and enactment.

partial same_term A for effort

Bill to curb chip sales to China advances out of committee
secondary · model gpt-5.5 · confidence 91%

The report says the AI Overwatch Act would subject higher-performance AI processor exports to Department of Commerce controls plus congressional review, terminate existing licenses, impose a temporary denial period, and allow Congress to block sales such as Nvidia H200 or AMD MI325X exports to Chinese customers.

The bill's described mechanisms match the promise's objective, and Mast publicly framed it as keeping advanced AI chips away from Chinese military-linked companies. It remained proposed legislation, so it supports effort more than completed delivery.

partial same_term A for effort

Tom's Hardware: Congress wants veto power over Trump administration for AI chip exports
secondary · model gpt-5.5 · confidence 84%

The report says Commerce rules permitted limited exports of Nvidia H200, AMD MI325X, and comparable processors to China and Macau on a case-by-case basis, while requiring testing, end-user disclosures, know-your-customer controls, and limits barring restricted parties such as Chinese military or intelligence agencies.

This undercuts a finding of full delivery because U.S. policy still allowed some advanced AI chip exports to China, though with safeguards intended to prevent diversion to military or intelligence end users.

partial same_term

Tom's Hardware: U.S. posts official H200 and MI325X AI GPU export rules to China, but with plenty of caveats
secondary · model gpt-5.5 · confidence 78%

Axios reported a new AI chip smuggling case involving alleged diversion of $2.5 billion worth of servers with Nvidia AI chips to China. Mast told Axios that H200s, Blackwells, or any AI chips that could help China win the AI arms race can never have Chinese end users.

Mast's statement aligns with the promise, but the alleged smuggling case shows the goal was not fully achieved as of March 2026.

never same_term

Axios: AI chip smuggling signals strong Chinese demand
secondary · model gpt-5.5 · confidence 86%

AP reported that three people affiliated with Super Micro Computer were charged with conspiring to illegally export high-performance servers containing advanced Nvidia chips to China from 2024 to 2025. The indictment alleged $2.5 billion in orders and at least $510 million worth of servers diverted to China.

The indictment allegations are strong evidence that, despite export controls, advanced AI-chip systems still reached or were allegedly diverted toward China during the relevant period, weighing against full fulfillment.

never same_term

Associated Press: 3 men are charged with conspiring to smuggle US artificial intelligence to China
secondary · model gpt-5.5 · confidence 90%

The report says House Select Committee on China Chair John Moolenaar and House Foreign Affairs Committee Chair Brian Mast led a letter urging State and Commerce to press allies for countrywide controls on key semiconductor manufacturing equipment and subcomponents that China cannot produce indigenously.

This is concrete Mast-led oversight and diplomatic pressure related to preventing China from producing or obtaining advanced chips, though it concerns chipmaking tools more than exported AI chips themselves.

partial same_term A for effort

Tom's Hardware: U.S. lawmakers demand sales ban on chipmaking tools to China
secondary · model gpt-5.5 · confidence 82%