Amtech Systems Inc

Item 1A. Risk Factors

We refer you to documents filed by us with the SEC, specifically Item 1A. Risk Factors in our 2025 Form 10-K, which identifies important risk factors that could materially affect our business, financial condition and future results. We also refer you to the factors and cautionary language set forth in the section entitled Cautionary StatementsNote Regarding Forward-Looking Statements immediately preceding Item 1. Financial Statements of this Quarterly Report. This Quarterly Report, including the accompanying condensed consolidated financial statements and related notes, should be read in conjunction with such risks and other factors for a full understanding of our operations and financial condition. The risks described in our 2025 Form 10-K and any described herein are not the only risks facing us. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition or operating results. Except as set forth below, there have been no material changes to the risk factors previously disclosed in our 2025 in our Form 10-K.

Armed Conflict Involving Iran and Related Geopolitical Instability Could Disrupt Global Semiconductor Supply Chains and Adversely Affect Our Business, Financial Condition and Results of Operations.

The ongoing armed conflict involving Iran has introduced significant geopolitical uncertainty to the Middle East and surrounding regions. The conflict, including direct military oQ for the quarterly perations, has the potential to escalate and draw in additional state and non-state actors, destabilize critical trade routes, and trigger broader economic disruptions. The semiconductor industry in which we operate is particularly sensitive to such disruptions given its reliance on globally integrated supply chains, specialized raw materials and energy-intensive manufacturing processes.

Hostilities involving Iran could lead to disruptions in global energy markets, including significant increases in the price of oil and natural gas, given Irans strategic position near the Strait of Hormuz, through which a substantial portion of global oil shipments transit. Energy price volatility could increase our operating costs and the costs borne by our customers, potentially dampening demand for our products and services. In addition, the conflict could disrupt maritime shipping lanes and air freight routes in the region, resulting in delays and increased costs for the transportation of raw materials, components and finished goods across our global supply chain.

The conflict could also result in the imposition of new or expanded economic sanctions, export controls or trade restrictions by the United States or other governments, which could limit our ability to source materials, transact with certain counterparties or sell our products in certain markets. We derive a significant portion of our revenue from customeiod ended March 31, 2026, there have been no material changes to the risk factors in Asia, including China, Taiwan, Malaysia and other countries that may be directly or indirectly affected by shifts in geopolitical alliances and trade flows resulting from the conflict. Furthermore, heightened geopolitical tensions could accelerate the trend toward supply chain regionalization and decoupling, which, while potentially creating opportunities in certain markets, could also disrupt established customer relationships and distribution channels.

In addition, armed conflict in the region could adversely affect macroeconomic conditions globally, contribute to inflationary pressures, increase volatility in foreign currency exchange rates and financial markets, and reduce business confidence and capital spending by our customers. Any prolonged period of conflict or instability could exacerbate the cyclical nature of the semiconductor industry and delay or reduce our customers investment in new equipment, consumables and services. We cannot predict the duration or outcome of the conflict, or the full extent of its impact on our business, results of operations, financial condition or stock price.previously disclosed in our 2025 Form 10-K.