INFICON delivers record second quarter 2026 and raises full-year guidance. "Ad hoc announcement pursuant to Art. 53 LR" Bad Ragaz/Switzerland, July 30, 2026 * Second quarter sales of USD 198.1 million, 18.3% above prior year and up 9.5% over prior quarter. Strong growth in key end markets and all regions * Operating income margin of 21.3% in the second quarter, up 5.0 percentage points from the first quarter (16.3%), reflecting completed efficiency measures * Order intake reached its highest level by far, with a book-to-bill ratio well above 1 * First half 2026 sales of USD 379.1 million, up 16.4% year-on-year, with operating income margin at 18.9%, up from 17.6% in the prior year. * INFICON raises full-year guidance to sales of USD 750-780 million (previously: USD 710-750 million) and an operating income margin of 19-20% (previously: 18-20%) INFICON reports record second quarter 2026 sales of USD 198.1 million, an increase of 9.5% over the preceding first quarter and of 18.3% over the same period of last year (organic: 17.4%). Sales grew year-over-year in all regions and in all target markets except Security & Energy. Leading-edge logic, high-bandwidth memory, and data-center infrastructure are the primary demand drivers behind the current semiconductor ramp. The order intake reached an all-time high, with a book-to-bill ratio well above 1. Operationally, INFICON's reconfigured global manufacturing footprint proved resilient during recent supply-chain disruptions, while continued efficiency and cost discipline, supported by a strong top line, contributed to a substantial improvement in operating income over the first quarter. The gross profit rose 11.2% sequentially to USD 92.4 million, with the gross profit margin improving to 46.6% from 45.9% in the first quarter. Total operating expenses increased 7.1% year-on-year to USD 50.1 million (Selling, general, and administrative expenses of USD 36.5 million, Research and Development expenses of USD 13.6 million). Operating income increased 43.9% over the first quarter, up from USD 29.4 million to USD 42.3 million, increasing the operating income margin by 5.0 percentage points to 21.3% from 16.3%. The net result was USD 32.3 million, and earnings per share rose to USD 1.32 from USD 0.94 in the first quarter. Development in the target markets and world regions. In its largest market, Semiconductor & Vacuum Coating, INFICON achieved sales of USD 107.3 million, an increase of 30.7% year-on-year and 12.9% over the preceding quarter, contributing 54.2% to Group sales and reflecting the broadening semiconductor upswing across all regions. Sales to the General Vacuum market were USD 46.8 million, or 23.6% of Group sales, up 10.6% year-on-year and reducing 2.9% sequentially after a strong first quarter. The Automotive, Refrigeration & Air Conditioning sales grew 8.6% year-on-year and 13.0% sequentially to USD 39.2 million, accounting for 19.8% of the Group sales. Security & Energy sales were USD 4.8 million, or 2.4% of Group sales, up 54.0% sequentially and 30.8% below the prior-year period. Sales increased across all regions year over year. Asia-Pacific grew to USD 55.9 million (28.2% of Group sales), up 32.5% year-on-year, led by strong semiconductor demand, while sales to China were USD 50.6 million (25.5%), up 5.6% year-on-year. Europe grew to USD 44.0 million (22.2%) and in the Americas to USD 46.3 million (23.4%), up 18.9% and 18.7% year-on-year respectively. Cash flow and balance sheet. Cash generation remained strong, with an operating cash flow of USD 48.4 million in the second quarter, more than double the USD 18.7 million recorded in the same period of last year. The balance sheet continues to reflect a solid financial position. Working capital was USD 243.6 million, corresponding to an improvement to 30.7% of sales (30 June 2025: 34.2%), and inventory turns improved to 2.5 times (2.4 a year ago) on nearly unchanged inventories of USD 156.7 million. Days sales outstanding rose to 50 days from 48 days a year ago, reflecting strong invoicing activity late in the quarter while collections remained robust. Half-year. In the first six months of 2026, INFICON achieved sales of USD 379.1 million, an increase of 16.4% over the first half of last year (13.7% organic, 2.7% currency effects). The gross profit for the period rose to USD 175.4 million, with a gross margin of 46.3% (first half of 2025: 46.2%). After R&D expenses of USD 28.9 million and SG&A expenses of USD 74.8 million, reflecting one-off costs and currency effects concentrated in the first quarter, INFICON reported operating income of USD 71.7 million for the period, up 25.4% year-on-year. This lifted the operating income margin to 18.9%, an improvement of 130 basis points over the 17.6% recorded a year ago. The net result for the first half rose 28.1% to USD 55.4 million, or 14.6% of sales, compared with USD 43.2 million or 13.3% of sales a year ago. Earnings per share amounted to USD 2.27 after USD 1.77 for the same period last year. Outlook. Based on the strong half-year performance, the continued strong order intake, and the accelerating semiconductor cycle, INFICON raises its full-year 2026 guidance to sales of USD 750-780 million (previously USD 710-750 million) and an operating income margin of 19-20% (previously 18-20%). Web conference. INFICON discusses its second quarter and half-year 2026 results in more detail today at 09:30 a.m. CEST in an English-language web conference. You can access the web conference via the following link: https://www.inficon.com/web-conference. The presentation is available from 07:00 a.m. in the investors' area of the INFICON website www.inficon.com. Communication calendar. The communication calendar of INFICON is continuously updated and available online in the Investors' section of the INFICON website www.inficon.com or directly at https://ir.inficon.com/financial-calendar/. E-Mail Alerts. To automatically receive notification via e-mail of the latest financial information from INFICON, sign-up for e-mail Alerts in the Investors' section of the INFICON website at https://ir.inficon.com/contact-and-information-request/. About INFICON. INFICON is a leading provider of innovative instrumentation, critical sensor technologies, and Smart Manufacturing /Industry 4.0 software solutions that enhance productivity and quality of tools, processes and complete factories. These analysis, measurement, and control products are essential for gas leak detection in air conditioning/refrigeration, and automotive manufacturing. They are vital to equipment manufacturers and end-users in the complex fabrication of semiconductors and thin film coatings for optics, flat panel displays, solar cells and industrial vacuum coating applications. Other users of vacuum-based processes include the life sciences, research, aerospace, packaging, heat treatment, laser cutting and many other industrial processes. Inficon Inc. also leverage its expertise in vacuum technology to provide unique, toxic chemical analysis products for emergency response, security, and environmental monitoring. INFICON is headquartered in Switzerland and has best in class manufacturing facilities in Germany, Liechtenstein, the United States, Malaysia and China, as well as subsidiaries in China, Denmark, Finland, France, Germany, Hongkong, Italy, Japan, Korea, Liechtenstein, Malaysia, Mexico, Singapore, Sweden, Switzerland, Taiwan, the United Kingdom and the United States. INFICON registered shares (IFCN) are listed on SIX Swiss Exchange. For more information about INFICON and its products, please visit www.inficon.com. This press release and oral statements or other written statements made, or to be made by Inficon Inc., contain forward-looking statements that do not relate solely to historical or current facts. These forward-looking statements are based on the current plans and expectations of its management and are subject to a number of uncertainties and risks that could significantly affect its current plans and expectations, as well as future results of operations and financial condition. Inficon Inc. undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Corporate contact. Dimitrij Lisak Chief Financial Officer

WITT expands leak-testing portfolio with acquisition of INFICON's Contura line. June 16, 2026 By WITT-Gasetechnik GmbH & Co KG Talking points. Effective July 1, 2026, WITT Gasetechnik GmbH & Co. KG will acquire the Contura product range for non-destructive package leak testing from INFICON GmbH. This strategic move allows INFICON to exit the packaging-inspection market while ensuring continuity for existing customers through WITT's expertise in leak-testing solutions. * The acquisition includes all associated patents and aims for a seamless transition for current users. * WITT will take full responsibility for the development, marketing, and service of Contura systems. * The LEAK MASTER(R) CONTURA technology detects micro and macro leaks without test gases, enhancing WITT's existing portfolio. This acquisition is significant as it ensures ongoing support and innovation for Contura customers, reinforcing WITT's position as a leader in leak-testing technologies within the food and packaging industries. Powered by: Witten/Cologne, June 2026 Effective July 1, 2026, WITT Gasetechnik GmbH & Co. KG will acquire the renowned Contura product range for non-destructive package leak testing from INFICON GmbH. The acquisition also includes the associated patents and is structured to ensure a seamless transition for existing customers while supporting the continued technological development of the systems. As part of a strategic realignment, INFICON is withdrawing from the packaging-inspection market and has deliberately chosen WITT as its successor to place the future of Contura technology in experienced hands. With the integration of Contura technology, WITT is further expanding its range of leak-testing solutions. The owner-managed family business, based in Witten, has specialized in solutions for the food and packaging industries for decades and is one of the world's leading suppliers of systems for modified atmosphere packaging (MAP), gas analysis, and leak testing. Following the acquisition, WITT will assume full responsibility for the development, marketing, service, and ongoing advancement of the existing Contura systems. "For many years, the Contura product range has been synonymous with precise and reliable leak testing. It was important to us to hand this technology over to a partner who can offer customers long-term continuity and continue to develop the product with technical expertise," says Dr. Jorge Oevermann, Product Manager for Leak Detection Tools at INFICON. For existing INFICON customers, this move provides long-term continuity and confidence. Product availability, the supply of spare parts, and the level of service customers have come to expect will continue without interruption and will be ensured through WITT's global service and partner network. For WITT, the integration of Contura technology under the name LEAK MASTER(R) CONTURA into the globally established LEAK MASTER(R) family represents a valuable addition to its existing portfolio. The technology utilizes a patented pressure differential method that detects leaks without requiring test gases such as CO[2]. It enables both micro-leaks in the range of 10 μm and macro-leaks to be detected quickly, reproducibly, and non-destructively across a wide variety of packaging types, such as capsules and pouches. "With LEAK MASTER(R) CONTURA, we are expanding our portfolio to include a technically advanced and well-established method that perfectly complements our existing leak testing solutions," explains Martin Bender, Managing Director at WITT. "This benefits both Contura customers and our current customers, to whom we will now be able to offer an even broader range of high-performance testing technologies for consistent quality assurance."