Management to Discuss "More than Moore for Amtech," which Addresses the Company’s Position Amid Strong Demand for AI-Driven Advanced Packaging

Amtech Systems, Inc. ("Amtech") (NASDAQ: ASYS), a manufacturer of equipment and consumables enabling AI semiconductor device packaging and advanced substrate fabrication, today announced it will participate in the LD Micro Main Event XX investor conference on October 20, 2026. The conference is being held at the Luxe Hotel in Los Angeles. This will be an in-person conference with Amtech presenting on Tuesday, October 20, 2026 at 3:30 PM PST in Track 1 and hosting 1:1 meetings with investors throughout the day.

The investor presentation to be referenced during the conference will be made available within the investor relations section of Amtech’s website on the morning of the event. To access the slideshow presentation, please click here. The presentation at the conference will be webcast, please click here. For those attending the conference who wish to schedule a one-on-one meeting with Amtech, please make a request with the event host or contact Amtech’s investor relations representative, Jordan Darrow of Darrow Associates, using the contact information provided in this press release.

About Amtech Systems, Inc.

Amtech Systems, Inc. (NASDAQ: ASYS) provides equipment, consumables and services for AI semiconductor device packaging and advanced wafer substrate fabrication. Our products include advanced packaging and electronics assembly equipment for applications such as AI GPUs and advanced automotive electronics. Consumable and other solutions are used in fabricating semiconductor devices, such as silicon carbide (SiC) and silicon (Si) power devices, digital and analog devices, power electronic packages, advanced semiconductor packages and electronic assemblies. We sell these products to semiconductor device and module manufacturers worldwide, particularly in Asia, North America and Europe.

Cautionary Note Regarding Forward-Looking Statements

Certain information contained in this press release is forward-looking in nature, including preliminary and estimated financial results, which are based on the Company's current expectations and are subject to completion of its quarter-end closing procedures. All statements in this press release, or made by management of Amtech Systems, Inc. and its subsidiaries (“Amtech”), other than statements of historical fact, are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the Private Securities Litigation Reform Act of 1995 (the “PSLRA”). We intend such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in the PSLRA. Forward-looking statements include, but are not limited to, statements regarding our plans, strategies and prospects, both business and financial, including statements about our future financial or operating results, revenue and operating performance, market outlook, customer demand and product development, growth initiatives, cost reduction strategies and capital allocation, demand for AI-related semiconductor packaging equipment, delivering profitable growth, creating long-term value for our shareholders, long-term future prospects, business strategies, projected costs, the optimization and reduction of structural costs, products under development, competitive positions, plans and objectives of management for future operations, efforts to improve operational efficiencies, and enhancements to our technologies and expansion of our product portfolio. Forward-looking statements give our current expectations or forecasts of future events. You can identify forward-looking statements by the fact that they do not relate strictly to historical or current facts.

These statements may use words such as “may,” “plan,” “anticipate,” “seek,” “will,” “expect,” “intend,” “estimate,” “believe,” “continue,” “predict,” “potential,” “project,” “should,” “would,” “could,” “likely,” “future,” “target,” “forecast,” “goal,” “observe,” “strategy,” “opportunities,” “committed,” “on track” or the negative thereof or variations thereon or similar terminology. However, the absence of these words or similar expressions does not mean that a statement is not forward-looking. These statements are not guarantees of future performance and involve risks, uncertainties and assumptions that are difficult to predict. The Form 10-K that Amtech filed with the Securities and Exchange Commission (the "SEC") for the most recently completed fiscal year-ended September 30, listed various important factors that could affect the Company's future operating results and financial condition and could cause actual results to differ materially from historical results and expectations based on forward-looking statements made in this document or elsewhere by Amtech or on its behalf. These factors can be found under the heading "Risk Factors" in the Form 10-K and in our subsequently filed Quarterly Reports on Form 10-Qs, and investors should refer to them. Because it is not possible to predict or identify all such factors, any such list cannot be considered a complete set of all potential risks or uncertainties. Except as required by law, we undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events, or otherwise.

Amtech Systems may use its website (www.amtechsystems.com), investor relations page (https://www.amtechsystems.com/investors), and LinkedIn page (https://www.linkedin.com/company/amtechsystems) to disclose material non-public information and for complying with its disclosure obligations under Regulation FD. Accordingly, investors and other interested parties should monitor these sites, in addition to following Amtech Systems press releases, Securities and Exchange Commission (SEC) filings, public conference calls and public presentations/webcasts.

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