The "Severing Technology Transfer Operations and Partnerships between China and Russia Act of 2025," or the STOP China and Russia Act of 2025, aims to impose sanctions on the People's Republic of China (PRC) for its support of the Russian Federation's invasion of Ukraine. It mandates that the President impose sanctions on foreign persons who are PRC persons or controlled by PRC persons. These sanctions apply if such persons knowingly sell, lease, provide, or facilitate goods or services for the ultimate use by the Russian Armed Forces or its defense industrial base, targeting the ongoing evasion of existing sanctions by PRC entities.

The prescribed sanctions include property blocking for assets in the United States and deeming sanctioned individuals inadmissible to the United States, making them ineligible for visas with existing ones revoked. The bill specifically lists critical items such as computer numerical control tools, lubricant additives, nitrocellulose, chemical coatings, military fiber optic cables, and advanced sensors as examples of goods triggering these sanctions. Exceptions are provided for intelligence activities, international obligations, and the importation of goods, and the President may issue waivers in the national interest.

Additionally, the Act requires the President to determine within 90 days whether specific major PRC arms manufacturers, such as China North Industries Group Corporation and Aviation Industry Corporation of China, are providing arms, weapons, or dual-use goods to Russia, and to impose sanctions if they are. Finally, the bill mandates the Secretary of State to develop a strategy to coordinate with allies and partners for diplomatic, sanctions, and export control actions to deter and undermine China's ongoing support for Russia's war, with regular progress reports to Congress.