AXCELIS TECHNOLOGIES INC

We are primarily a producer of ion implantation equipment used in the fabrication of semiconductor chips in the United States, Europe, and Asia. In addition, we provide extensive worldwide aftermarket service and support, including spare parts, equipment upgrades and maintenance services to the semiconductor industry. Our product development and manufacturing activities currently occur primarily in the United States and South Korea. Our equipment and service products are highly technical and are sold through a direct sales force in the United States, Europe, and Asia. Consolidation and partnering within the semiconductor manufacturing industry has resulted in a small number of customers representing a substantial portion of our business. Our ten largest customers accounted for 67.3% of total revenue for the three months ended March 31, 2025.

Sales of our systems in the first three months of 2025 were down compared to the same period in the prior year, as customers have moderated the pace of investments into mature process node technologies. The overall mature process segment represented 86% of our shipped systems revenue, with 14% of shipments to dynamic random-access memory (“DRAM”) applicaitons. Power device shipments comprised 39% of total systems revenue with the general mature segment representing 47%, which includes image sensor applications starting with first quarter 2025 results.

For the three months ending March 31, 2025, the geopolitical environment surrounding trade and tariffs did not have a meaningful impact on our financial results. It is difficult to predict the exact timing and magnitude of the tariffs, the duration for which the tariffs will be in place, and the impact the tariffs will have on our customers and suppliers. We are in the process of developing plans to reduce the potential impact of these tariffs by leveraging our global supply chain and manufacturing footprint.