IEEPA tariff refund request

Hamamatsu customers who were charged certain IEEPA tariffs between May 6, 2025, and February 26, 2026, are eligible to request a credit be applied to their account.

 

To submit a request, please complete the IEEPA Tariff Refund Request Form and follow the instructions.

 

Requests will be reviewed in the order received once all required information is provided. Processing times may vary based on submission volume and verification requirements. Submission does not guarantee eligibility or the automatic issuance of a credit.

 

Thank you for your patience and understanding.

 

November 16, 2026