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Mission Critical Group has entered into a merger agreement with CORE Transformers, a supplier of engineered-to-order transformers for data centers, grid, and industrial applications. The transaction is expected to close within 30 days, subject to customary closing conditions. The merger adds CORE's transformer capabilities to MCG's critical power platform, enabling the company to deliver complete electrical infrastructure solutions for mission critical facilities. CORE will continue operating under its existing brand and leadership team. CORE maintains an inventory of more than 1,000 transformers available for immediate deployment and draws on over 5.5 million square feet of global production capacity. The company can deliver custom transformer solutions in as little as 16 weeks. MCG operates more than 18 manufacturing facilities in the United States, serving technology, manufacturing, healthcare, and energy companies across North America.

Mission Critical Group and CORE Transformers enter into merger agreement. * Adds engineered-to-order transformers to MCG's growing critical power platform * Enhances speed-to-power capabilities by expanding access to transformer capacity and shortening the path from design to deployment * Enables customers to source a broader suite of electrical equipment and services from a single, trusted partner FRISCO, Texas, July 24, 2026 (GLOBE NEWSWIRE) - Mission Critical Group ("MCG"), a leading provider of end-to-end electrical infrastructure solutions for mission critical facilities, including data centers, manufacturing plants, and energy infrastructure, today announced it has entered into an agreement to merge with CORE Transformers ("CORE"), a supplier of engineered-to-order transformers for data center, grid, and industrial applications. The transaction is expected to close within the next 30 days, subject to customary closing conditions. The merger adds CORE's transformers to MCG's growing critical power platform, further strengthening its ability to serve customers across mission critical end markets. By expanding access to transformer capacity and bringing design of the entire powertrain in-house, the transaction enhances MCG's ability to deliver industry-leading speed-to-power. Together, MCG and CORE will provide customers with a single, trusted partner capable of delivering all the electrical infrastructure required for complex mission critical projects. Following the closing of the transaction, CORE will become part of the MCG company and will continue operating under the CORE brand with its existing leadership team. "Transformers are a natural extension of our integrated power solutions platform, and CORE is the ideal partner to bring that capability to MCG," said Jeff Drees, CEO of Mission Critical Group. "CORE's deep technical expertise, strong manufacturing relationships, and proven speed of delivery will enable us to offer customers a more complete solution and an accelerated path to power." "CORE will continue to deliver the same level of service and responsiveness to its reseller and distribution customer base. This includes maintaining an inventory of more than 1,000 transformers available for immediate deployment and drawing on more than 5.5 million square feet of global production capacity to deliver custom transformer solutions in as little as 16 weeks," said Randall Maddox, co-founder of CORE Transformers. "The combination with MCG adds a new channel for CORE while reinforcing its commitment to the customers and partners who have driven its growth." About Mission Critical Group Mission Critical Group is a leading provider of end-to-end electrical infrastructure solutions for mission critical facilities, including data centers, manufacturing plants, and energy infrastructure. We design, manufacture, integrate and service modular power solutions, including switchgear, e-Houses, power skids, backup power systems, and related critical power equipment. Our customers include major technology, manufacturing, healthcare, and energy companies across North America, and we operate more than 18 manufacturing facilities in the United States. For more information, visit missioncriticalgroup.com. About CORE Transformers CORE Transformers is a supplier of new, made-to-order, and remanufactured power transformers serving data center, commercial, industrial, utility, renewable energy, and critical power markets. With more than 1,000 units in ready-to-ship inventory and access to over 5.5 million square feet of global production capacity, CORE delivers stock, custom, and remanufactured transformer solutions on timelines that meet urgent project demands. CORE helps customers navigate long industry lead times through inventory depth, remanufacturing capabilities, and responsive support. For more information, visit coretransformers.com. Media Contact: Laura Noland Senior Director, Marketing Communications Mission Critical Group [email protected] 407-341-2512

Mission Critical Group opens third Pennsylvania manufacturing facility to support growing AI and data center infrastructure demand. New Harleysville, PA facility adds 300 jobs; hiring event June 17. MCKINNEY, Texas, June 02, 2026 (GLOBE NEWSWIRE) - Mission Critical Group ("MCG"), an end-to-end power systems and solutions provider, today announced the opening of its new manufacturing facility in Harleysville, Pennsylvania, expanding the company's low-voltage switchgear production capacity to support the accelerating demand for AI, data center, and mission critical infrastructure projects. The new facility adds more than 266,000 square feet of manufacturing space and expands MCG's ability to deliver critical electrical infrastructure for AI, data centers, utilities, and other power-intensive environments. The Harleysville campus strengthens MCG's ability to accelerate time-to-power for customers by increasing manufacturing capacity, supporting improved delivery timelines, and expanding production capabilities for low-voltage switchgear solutions. "This expansion represents another important milestone in our growth strategy and our commitment to serving customers with speed, quality, and reliability," said Jeff Drees, CEO of Mission Critical Group. "The new Harleysville facility enhances our manufacturing footprint in the Northeast and positions us to support growing demand for critical power infrastructure well into the future." The Harleysville site is located approximately 7.5 miles from MCG's existing North Wales manufacturing site. Together, the two facilities will coordinate to expand switchgear production capacity and support metal fabrication activities, helping MCG meet growing customer demand. Limited operations to support training began in May, with full production ramp-up beginning in September 2026. The expansion will add 300 new jobs to the region. MCG will host a career fair on Wednesday, June 17, from 4:00 p.m. to 7:00 p.m. at the new facility located at: Mission Critical Group - Harleysville Facility 1600 Delp Drive Harleysville, PA 19438 Attendees will learn more about open positions across manufacturing, production, operations, and skilled trades, meet members of the MCG leadership and recruiting teams, and tour portions of the new facility. About Mission Critical Group Mission Critical Group (MCG) is an end-to-end power systems and solutions provider that helps accelerate power delivery for critical applications. Using combined engineering, U.S. manufacturing, and lifecycle services, MCG designs and builds electrical gear and modular power systems. With a robust U.S. manufacturing footprint, MCG serves electrification and power needs with products like switchgear, modular systems, microgrids, generator enclosures, and e-houses. MCG works with data centers, utilities, industry, energy, healthcare, and other heavy power users to provide reliable and scalable solutions for growing energy needs. For more information, visit missioncriticalgroup.com. Media Contact: Laura Noland Senior Director, Marketing Communications Mission Critical Group [email protected] 407-341-2512