To Our Valued Customers,
The United States Supreme Court has ruled that the tariffs previously imposed under the (IEEPA) are unlawful. In response, the U.S. Government has indicated that these duties will be replaced with tariffs implemented under Section 122 of the Trade Act of 1974.
While the Court determined that the IEEPA tariffs were illegal, it did not direct that refunds should be issued. Whether importers will receive refunds for tariffs previously paid remains the subject of future litigation. These proceedings may take several months—or even years—before a final resolution is reached.
Hamamatsu Corporation is closely monitoring all developments and will continue to comply with official guidance from the U.S. Government. We will update and apply tariff rates as defined by U.S. trade authorities to shipments as required. We remain committed to transparency and will provide updates as further clarification becomes available.
We genuinely appreciate your continued partnership and patience as we navigate this transition together.
Sincerely,
Earl Hergert
President
Hamamatsu Corporation
Additional information on tariffs
Tariffed products notice
In accordance with applicable U.S. Trade Acts, certain products may be subject to an added tariff fee based on their country of origin. Any applicable tariff fees will be included at the time of invoicing. Effective August 11th, 2025, Hamamatsu will implement the newly enacted tariffs on all orders.
Hamamatsu's tariff statement
Hamamatsu Corporation and Hamamatsu Photonics K.K. continue to review the most recent administrative directives and assess how best to manage the vast number of products imported with a country of origin of Japan. We will provide updates as needed to ensure a consistent supply of goods to our valued customers.
Section 232 tariffs – Steel, aluminum, and copper
Hamamatsu Corporation specializes in selling finished goods and does not sell steel, aluminum, or copper raw materials or derivative products. Hamamatsu Corporation is the importer of record for the goods it imports into the United States. Based on the applicable tariff classifications and Section 232 designations, Hamamatsu Corporation's products are not designated as steel, aluminum, or copper articles or derivative products subject to Section 232 tariffs.