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KITCHENER, ON | OCTOBER 6, 2025 — J-AAR Limited, a family-owned construction company with locations in London and Cambridge, Ontario, has acquired the heavy civil road construction operations of The Seegmiller Group of Companies. This transition allows Seegmiller’s construction employees to continue their work under J-AAR’s leadership, contribute to ongoing regional projects, and benefit from the shared strengths, experience, and future collaboration opportunities between the two organizations. “We are excited to welcome the Seegmiller’s road building operations into J-AAR and continue delivering important infrastructure projects to the communities we serve,” said Ryan Aarts, CEO of J-AAR. “Like Seegmiller, we are a family-owned business with a commitment to our people and local communities. We look forward to building on their legacy and collaborating together in ways that strengthen our industry and communities.” J-AAR is actively managing several infrastructure projects in Waterloo Region, including the new Dundee Roundabout, the Frederick Street reconstruction, and the new Cowan Recreation Centre on Huron Road. “We have seen a lot of change in the industry in the last decade, and this transition positions the Seegmiller Group to align its businesses with opportunities that we see ahead,” said Nora Seegmiller, President of the Seegmiller Group of Companies. “My dad, Tim, has always believed that our people are our most valuable assets. We are proud to share our team with a company as vibrant as J-AAR and feel this step helps ensure a strong, successful future for the teams and communities we serve.” Founded nearly a century ago, The Seegmiller Group is a fourth-generation, family-owned and led business that has been serving Ontario’s construction and aggregate industries since 1927. While E&E Seegmiller is known as one of the region’s most experienced full-service private construction companies, The Seegmiller Group will focus on new opportunities outside the civil road reconstruction industry, including aggregate supply, land development and specialized equipment repair. “My family and I will continue to support J-AAR and are fully invested in the success of the civil construction operations now under their leadership,” said Seegmiller. “We look forward to seeing the team thrive and continuing the legacy of excellence they’ve built in the communities we all serve.” The transaction is effective October 3, 2025, marking a new chapter for J-AAR as it takes on Seegmiller’s civil construction operations, and for Seegmiller as it focuses on new opportunities. Both companies remain guided by family-led leadership and a shared commitment to people, projects, and communities. For more information on The Seegmiller Group, please visit https://www.theseegmillergroup.com/. For more information on J-AAR, please visit https://j-aar.com/. ABOUT J-AAR: J-AAR Limited is a family-owned Canadian construction company headquartered in London, Ontario. With over 500 team members across its civil infrastructure, structures, and materials divisions, J-AAR is dedicated to building infrastructure that strengthens communities. Guided by its core values: reaching our greatest potential, believing in others more than they believe in themselves, taking pride in keeping our word, embracing humility and positivity, and respect and care. J-AAR delivers projects with integrity, quality, and care. ABOUT THE SEEGMILLER GROUP: The Seegmiller Group is a family-owned and operated Canadian business with a diverse portfolio spanning aggregate processing, heavy and civil construction, land development, specialty equipment repair. With a legacy of nearly 100 years, the group is committed to innovation, operational excellence, and long-term value creation for its employees, partners, and communities. Guided by a culture of integrity and collaboration, The Seegmiller Group continues to adapt to new opportunities while maintaining a strong focus on sustainable growth and strategic investments. For media inquiries, please contact: Rachael Marshall Durrell Communications 289-925-8041 Or J-AAR Limited info@j-aar.com 519-652-2104 For all other inquiries related to this announcement, please email press@seegmiller.com or call 226-972-3181. These lines will be monitored by Durrell Communications.

J-AAR is proud to continue its partnership with LiUNA Local 1059 through their Charity Partnership Program, making a meaningful difference in the community with a $5,000 donation to the Children’s Health Foundation. This initiative is part of a three-year commitment where LiUNA donates $5,000 annually on behalf of J-AAR to a local charity of our choice. Last year, the funds supported Youth Opportunities Unlimited (YOU), helping empower youth in our region with critical resources and programs. This year, we are honoured to direct the support to the Children’s Health Foundation, where the funds will help provide life-saving equipment, state-of-the-art care, and vital support programs for children and families across Southwestern Ontario. The cheque presentation took place on September 30, with representatives from LiUNA 1059, J-AAR, and the Children’s Health Foundation in attendance. It was an opportunity to celebrate the power of collaboration between industry and community, and to highlight the shared commitment to giving back. At J-AAR, our work extends beyond construction. We believe in building stronger communities by supporting the organizations that provide essential care and opportunities for the people of Southwestern Ontario.

The J-AAR team, together with project partners and community leaders, officially broke ground on Phase 1 of the Timber Ridge subdivision on September 18. The milestone marks the start of an exciting new residential community that will bring thoughtfully planned homes and modern infrastructure to the growing Lucan area. A Milestone for the Community The morning ceremony gathered representatives from Timber Ridge Developments, local officials, home builders and J-AAR employees who will bring the vision to life. Guests viewed the first preparations for underground servicing and road construction, which will pave the way for new homes and community amenities. About Phase 1 Phase 1 includes essential site servicing and infrastructure for the initial group of residential lots, with work now underway on grading, utilities, and roadwork. This first phase sets the foundation for a multi-phase project designed to grow alongside the needs of Lucan’s expanding population. Partnership and Vision J-AAR is proud to work alongside owners Mike Radcliffe and Barry Gilmour of Gilrad Developments, whose vision for a high-quality, welcoming subdivision has guided every step of planning. The partnership underscores a shared commitment to craftsmanship, sustainability, and community growth. Looking Ahead Construction activity will continue through the coming months, with visible progress expected as underground services and road networks take shape. Future phases will follow as the new neighborhood rises, creating a vibrant, family-oriented community in the heart of Middlesex County.

J-AAR was proud to stand alongside our partners at BlueStone Properties 133 Pond Mills Road development in welcoming Premier Doug Ford, Mayor Josh Morgan, MPP Rob Flack, and other community leaders for the announcement of a $2.6 million investment through Ontario’s Skills Development Fund (SDF). The funding will directly support IBEW Local 120 and Literacy Link South Central in delivering training programs designed to prepare the next generation of skilled trades workers. This important initiative will help ensure a steady pipeline of talent to meet the growing demands of the construction industry across London and Southwestern Ontario. J-AAR Structures Represent with Pride During the announcement, J-AAR’s on-site crews were recognized for their professionalism, skill, and commitment to safety, qualities that reflect the standards we bring to every project. Their efforts at the Pond Mills development continue to showcase the expertise and dedication that make J-AAR a trusted partner in building communities. Building Communities, Creating Opportunities At J-AAR, we know that investing in skilled trades is more than just strengthening our industry, it’s about strengthening our communities. Initiatives like the Skills Development Fund not only keep housing projects moving forward but also create meaningful opportunities for local workers to grow, succeed, and build lasting careers in construction. Looking Ahead We are proud to be part of a project that highlights collaboration between government, industry, and community partners. Together, we are shaping the future of housing and infrastructure while ensuring that workers have the training and support they need to thrive.

J‑AAR is excited to announce the official groundbreaking of the Bradley Avenue Extension Project, a transformative infrastructure initiative designed to support community growth and improve mobility in southwest London. What’s Underway: Major construction has begun to extend Bradley Avenue from Wharncliffe Road South to White Oak Road, while also widening it between White Oak Road and Jalna Boulevard. Scope of Work: - A brand-new four-lane roadway between Wharncliffe Road South and White Oak Road - Widening of Bradley Avenue between White Oak Road and Jalna Boulevard - Addition of in-boulevard bike paths, sidewalks, street lighting, and landscaping for a modern complete-street design - Upgrades to underground infrastructure, including replacement of watermains and storm sewers, as well as culvert replacement, brand new stormwater pond, and construction of medians, curbs, and gutters - Coordination with the White Oaks Tributary Complete Corridor (Phase 1) to include stormwater management and enhancements to the natural environment Timeline Highlights 2025–2026: Major construction, including road widening and infrastructure work 2027: Final surfacing and pavement markings, with full completion expected in the spring Ceremony & Community Engagement: At the groundbreaking ceremony, J‑AAR welcomed project partners, and local officials, all eager to celebrate the start of this transportation milestone. Attendees were also invited on guided site rides, giving them a first-hand look at the scale and planning that will underpin the corridor’s transformation. Looking Ahead: J-AAR extends its gratitude to the City of London, project collaborators, and the community for their ongoing support and trust. We’re proud to deliver infrastructure that improves safety, accessibility, and connectivity and to play a part in building a stronger future for this community.