Littelfuse Taiwan Completes Renewal of Medium- and Short-Term Guaranteed Loans with Sunshine Bank

Announcement Date: June 24, 2026 Statement Date: June 23, 2026 Statement Time: 15:59:57 Company Code: 3051 Company Name: Littelfuse Taiwan Subject: Completion of Renewal for Five-Year Medium-Term and One-Year Short-Term Guaranteed Loan Agreements with Sunshine Commercial Bank

Applicable Clause: Clause 10 Event Date: June 23, 2026

Details: 1. Event Date: June 23, 2026 2. Counterparty to Contract or Commitment: Sunshine Commercial Bank 3. Relationship with Company: None 4. Effective/Expiry Date (or Termination Date) of Contract or Commitment: June 23, 2026 5. Main Content (Not applicable if terminated): Five-year medium-term guaranteed loan of NT$632 million and one-year short-term guaranteed loan of NT$350 million 6. Restrictive Clauses (Not applicable if terminated): None 7. Commitments (Not applicable if terminated): None 8. Other Important Agreements (Not applicable if terminated): None 9. Impact on Company's Financial and Business Operations: Enhancement of operational working capital 10. Specific Purpose: The company undertakes this arrangement for overall operational considerations and financial planning 11. Other Matters to be Disclosed (If the subject of the event or resolution is a publicly issued company or above, this material information also qualifies under Article 7, Paragraph 8 of the Enforcement Rules of the Securities and Exchange Act as a matter having significant impact on shareholders' equity or securities prices): None