This bill, known as the "End China's De Minimis Abuse Act," aims to significantly modify the administrative exemptions under the Tariff Act of 1930, specifically targeting the de minimis privilege for low-value imports. A central provision prohibits the application of the $800 de minimis exemption to articles subject to certain trade remedies, including antidumping or countervailing duties, safeguard measures, national security tariffs, or actions taken against unfair trade practices under Section 301 of the Trade Act of 1974. The legislation also introduces new requirements and enforcement mechanisms to prevent abuse of the exemption. It mandates that articles originating from countries with goods subject to Section 301 duties must provide their 10-digit Harmonized Tariff Schedule classification to U.S. Customs and Border Protection to qualify for the de minimis privilege. Additionally, the bill explicitly prevents the practice of forwarding merchandise in separate lots to secure the benefit of the exemption, and establishes civil penalties for violations, starting at $5,000 for a first offense.