Company-Hosted Investor Conference to be Held at New SEMICON West Location in Phoenix

Ichor Holdings, Ltd. (NASDAQ: ICHR), a leader in the design, engineering, and manufacturing of critical fluid delivery subsystems and components for semiconductor capital equipment, today announced management’s participation in the 17^th Annual CEO Investor Summit 2025, being held Tuesday, October 7^th at The Arrogant Butcher restaurant in Phoenix, Arizona.

The presentation material utilized during the CEO Summit will be made accessible on the investor page of the company’s website at https://ir.ichorsystems.com.

About the 17^th Annual CEO Investor Summit 2025

The CEO Investor Summit is held annually each year during the SEMICON West industry trade show. For the first time, SEMICON West and the CEO Investor Summit will take place in downtown Phoenix, Arizona in October 2025. The CEO Investor Summit will take place on Tuesday, October 7^th (the first day of SEMICON West) at The Arrogant Butcher restaurant, located adjacent to the Phoenix Convention Center. Event details include:

The CEO Investor Summit is collectively hosted and funded by participating companies and features a “round-robin” format consisting of small group meetings with company management teams. During the event, investors and analysts will have the opportunity to meet with the majority of the 12 management teams during the small group meeting sessions, the networking luncheon, and the concluding cocktail reception.

The 12 management teams collectively hosting the 17^th Annual CEO Investor Summit 2025 include: ACM Research (ACMR), Aehr Test Systems (AEHR), Alpha & Omega Semiconductor (AOSL), Bitdeer Technologies (BTDR), Cohu, Inc. (COHU), FormFactor (FORM), Ichor Systems (ICHR), Kulicke & Soffa (KLIC), Lasertec ADR (LSRCY), Photronics (PLAB), QuickLogic (QUIK), and SkyWater Technology (SKYT). Stifel and TD Cowen are sponsors of the conference.

Attendance at the CEO Investor Summit is by invitation only and is available solely to accredited investors and publishing research analysts. As space is limited, please RSVP early. Hosts reserve the right to limit attendance as necessary. Last day for registration is September 26, 2025.

RSVP Contacts for 17^th Annual CEO Investor Summit 2025

To RSVP for the CEO Investor Summit, please visit the CEO Summit Events website or contact either of the event co-chairs:

About Ichor

We are a leader in the design, engineering and manufacturing of critical fluid delivery subsystems and components primarily for semiconductor capital equipment, as well as other industries such as defense/aerospace and medical. Our primary product offerings include gas and chemical delivery subsystems, collectively known as fluid delivery subsystems, which are key elements of the process tools used in the manufacturing of semiconductor devices. Our gas delivery subsystems deliver, monitor and control precise quantities of the specialized gases used in semiconductor manufacturing processes such as etch and deposition. Our chemical delivery subsystems precisely blend and dispense the reactive liquid chemistries used in semiconductor manufacturing processes such as chemical-mechanical planarization, electroplating, and cleaning. We also provide precision-machined components, weldments, e-beam and laser welded components, precision vacuum and hydrogen brazing, surface treatment technologies, and other proprietary products. We are headquartered in Fremont, CA.

https://ir.ichorsystems.com/

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