Button Cell Battery Insulator Rings from China
Plastic insulator rings that separate anode and cathode in silver oxide button primary batteries (e.g., SR44). These prevent internal short circuits in the coin-shaped non-rechargeable cells. As integral safety parts, they qualify under HTS 8506.90.00.00 for primary battery parts.
Duty Rate — China → United States
40.2%
Rate breakdown
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include cross-sectional diagrams showing ring placement in button cell assembly for customs verification
• Certify plastic material meets RoHS and flammability standards common for battery safety parts