INSIDE #123 : simplebooklet.com

ContentsEditoMILESTONES 04QHSE Safety is slipping… 06 and we all have a role to play STRATEGYBESIX Group’s remarkable performance 08 in 2024: interview with our CFO ENGINEERINGBuilding bridges in Gabon 14BIM: the digital power behind BESIX Infra’s 16 construction sites PROJECTS Scheldt Tunnel elements set course for 22 their ﬁnal destination in Antwerp (Belgium) Contributing to a sustainable future with 24 sludge mono-processor in Ghent (Belgium) Reaching new heights at Aramco Stadium 26 (Saudi Arabia) One New Zealand Stadium: bringing 27 a sporting icon to life A multi-purpose hall in the heart 28 of Condroz (Belgium) A hydraulic emergency at Ivoz-Ramet: 29 Socogetra meets the challenge in record time (Belgium) INSIGHTGroup Rules: green lights, not red tape! 30Safety doesn’t stop at the site gates – 31 beware of your online safety as well NEWSFLASHES 32PERSONALIA 33 NEW CONTRACTS 34Published byFlorence BribosiaWriters F. Bribosia, T. Dossogne, I. Buysse, C. Jacquet, C. Verloigne, L. Cardona, S. Van Damme, H. El Nammari, J. Morrison, O. Petry, M. Maréchal, F. De Nardis. Graphic Design & ProductionTiltfactory.comBESIX GroupAv. des Communautés 100B-1200 Brussels, BelgiumT +32 (0)2 402 62 11communication@BESIX.comwww.besix.comwww.linkedin.com/company/BESIX@BESIXOcial@BESIXGroup_ocialCOVER STORY A new vision to build our legacy10COVER STORY BESIX RED’s recipe in a transforming real estate landscape18QHSESafety is slipping… and we all have a role to play06PROJECTSScheldt Tunnel elements set course for their ﬁnal destination in Antwerp22STRATEGY BESIX Group’s remarkable performance in 2024: interview with our CFO08Dear colleagues,Within the Group, the ﬁrst half of this year has been marked by a number of key moments when we traditionally take the time to communicate – both to the outside world and to our colleagues – about our performance and achievements over the past year, and also to reﬂect on the direction in which we want to move.On 20 March, BESIX Group's leadership gathered in Brussels (Belgium) to attend the Annual Meeting. It was a unique opportunity to see and hear fascinating presentations on a wide range of topics concerning the company's past, present and future. We also took the opportunity to present the outcome of our strategic review, which has been conducted at Executive Committee level since the end of last year. Today we are sharing it with all of you, in a dedicated article in this issue. We hope that this rejuvenated vision will serve as a driving force and motivation for you, as it does for me.Then, on 13 May, the Group published, on the same day, its ﬁnancial results and its 2024 Activity & ESG Report. These publications are much more than an ‘obligation’ to the outside world. They allow us to take a step back from what has been achieved, celebrate our successes and draw lessons for the future. I can only congratulate and thank all our people around the world for their contribution to the company's solid performance – all the more so in view of the economic and geopolitical environment, which remains particularly volatile. Our CFO Hans Beerlandt tells us more about it in this issue.This 123rd edition of INSIDE also continues its (healthy) tradition of putting the spotlight on some of our ongoing projects, from two remarkable stadiums in New Zealand and Saudi Arabia, to a sludge treatment facility for Aquaﬁn, and the developments commercialised by BESIX RED – as well as the strategy behind them. Other highlights include BESIX Infra's BIM department and the role of our engineers in our bridge projects in Gabon.Unfortunately, I have to conclude this message on a negative – but very important – note about safety. In the ﬁrst quarter of 2025, we recorded two fatalities and several high-potential incidents worldwide. This is simply unacceptable. Safety is not just an indicator to be achieved; it is a mindset, a culture, and it starts with each and every one of us. Our objective remains the same: zero incidents. So we took the opportunity of our Global Safety Time Out on 28 April to take stock of this crucial issue with Alexis Laroche, Group Director QHSE. I'm counting on you to put an end to this negative trend without delay, so that each of us can be sure of returning home safe and sound, every day.I hope you will enjoy reading this magazine.Pierre SironvalCEO of BESIX Group

Page 3

Page 4

FEBRUARYMAYMARCHAPRIL12A Skybuild self-climbing construction lift is inaugurated on the Triangle site in Paris (France). After construction, the lift will be transformed into a permanent double-deck elevator. 16In Antwerp (Belgium), the ROCO joint venture installs a 2,800-tonne arched bridge for the Oosterweel link’s bypass, a temporary highway which will accommodate trac while the iconic Merksem viaduct is demolished.20The structure of the Aramco Stadium in Dammam (Saudi Arabia) reaches its highest point, paving the way for the installation of the ﬁrst steel structural support. (read more on p. 26)19The TM Bever consortium, including BESIX, BESIX Infra and BESIX Unitec, completes the ﬁrst phase (in the direction of Ghent) of the Beveren Tunnel renovation in Antwerp’s port area (Belgium). 01Geert Aelbrecht, BESIX Group’s Chief People Ocer, Chief Sustainability & ESG Ocer, is named CHRO of the Year 2025 at the prestigious HR Excellence Awards in Belgium. (read more on p. 32)05BESIX Middle East successfully hands over the ﬁrst quay wall of the Port of NEOM development project in Oxagon (Saudi Arabia) to the client. The team is now turning its attention to wrapping up the remaining works by August 2025.05BESIX Watpac becomes Australia’s biggest construction company, with a total value of started projects in excess of AUD 3.45 billion in 2024.10The BRAVO4 consortium, including BESIX and BESIX Infra, successfully relocates the Ringvaart Bridge as part of the transformation of the R4 motorway in Ghent (Belgium). It now serves as a bypass, while a new, modern bridge is constructed.10LuxTP completes the structural works for the Luxembourg Red Cross new building in Howald.13BESIX Group publishes its 2024 full-year ﬁnancial results. The company reports a strong performance: the net income has doubled year-on-year, and the order book at the end of the year has reached a record level. (read more on p. 8)13BESIX Group publishes its Activity & ESG Report 2024. (read more p. 33)15BESIX Nederland completes the construction pit and foundations for the PALLAS nuclear reactor in Petten. This important facility will help ensure a reliable supply of medical isotopes for 30,000 patients every day.20BESIX Group 's leadership from across the world convenes in Brussels (Belgium) for the Annual Meeting 2025, a full day of inspiring presentations on performance, strategy, safety and other key topics.2025MILESTONES I. Buysse31BESIX RED announces the commercial launch of O’Vert, its new residential development in the heart of Ghent (Belgium), which transforms a historic industrial area into a sustainable and green urban living environment. (read more on p. 21)28The F Tower in Abidjan (Ivory Coast) reaches a height of 279 metres. Soaring towards its ﬁnal height of nearly 400 metres, this high-rise is set to be Africa’s tallest tower.14Construction of the One New Zealand Stadium in Christchurch enters its ﬁnal stretch, with just one year to go before this long-anticipated multi-use arena opens its doors. (read more on p. 27)23Jacques Delens successfully delivers the major renovation of the Vandeuren social housing district in Ixelles (Belgium). The renovation created 132 new social housing units and focused on circularity and heritage preservation.25Construction of Aquaﬁn’s sludge mono-treatment plant is symbolically kicked o in Ghent (Belgium), four months after works started. The facility will recover energy from the sewage sludge of four million residents. (read more on p. 24)27Vanhout kicks o construction for The Banks, a green and family-friendly residential district in Brussels (Belgium). Works on the substructure, comprising a 4,900 m² two-level underground parking, commence.26BESIX Infra delivers the rehabilitation of a four-kilometre stretch of road in Sint-Gillis-Waas (Belgium). It includes a new separate sewage system, a new deck slab and wide pedestrian and cycling paths.28More than 21,700 people (including subcontractors and partners) participate in the BESIX Global Safety Time Out. During this group-wide event, employees take a moment to reﬂect on safety and how they can improve their safety standards. (read more on p. 32)30The Khalifa University Student Accommodation PPP (UAE) wins two awards at the IJGlobal Awards 2024 for the Middle East and North Africa region: Social Infrastructure Deal of the Year and Public-Private Partnership (PPP) Deal of the Year.30The ﬁrst concrete slab for the Shellharbour Hospital is poured in Mount Warrigal (Australia). The hospital will serve the growing healthcare demand in the region.01The concrete structure of POST (Rotterdam, the Netherlands) tops out, reaching its full height of 155 metres. This new, modern tower will include 305 apartments and a hotel.03Following the inundation in April, the ﬁrst Scheldt Tunnel element is ﬂoated in the dry dock in Zeebrugge (Belgium) in preparation for its transport to Antwerp at the end of May. (read more on p. 22)4 5INSIDE Magazine #123INSIDE Magazine #123

Page 5

Page 6

QHSE F. Bribosia & C. Jacquet"Across the Group, we’ve seen a decline in Health & Safety performance" introduces Alexis Laroche, Group Director QHSE. The numbers tell one story, but it’s the stories behind the numbers that hit hardest: near-misses that could have been tragedies, workers left shaken, and in the worst cases, families left broken after a fatal accident. "This is not acceptable. Not for the people we work alongside every day. Not for the families who expect them coming back home, safe, every evening."INSIDE sat down with Alexis and asked him how to bring the focus back, how to bring the "care is at our core" mindset back to the front. Here’s his vision on our four fundamental safety principles and the practical actions we can all take, starting today.BE SAFE: it starts with you"Safety isn’t just hard hats and high-vis. It’s habits and behaviours", Alexis insists. "It’s about personal ownership, it’s the small, daily actions, like double-checking a platform, calling out an unsecured load, stepping back when something feels wrong, that make the dierence."• As a leader: Start each day with intention. A simple check-in (like asking "What are today’s risks?") can shift mindsets faster than any signage. And remember, your behaviour sets the tone. When you wear PPE correctly, when you observe and intervene to help and care, others notice. And follow.• As an employee: Speak up. If something doesn’t feel right, say so. Raising a concern doesn’t mean you blame someone, it means you care for them. Ask questions, slow down when needed, and look out for your mates.There’s something powerful about the start of a new project. Fresh energy, clear goals, and teams coming together to build something meaningful. But as the days unfold and the pressure builds, some things can begin to slip, sometimes without us even realising. One of those things, lately, has been safety.Safety is slipping… and we all have a role to playCARE IS AT OUR CORERespect the Life Saving Rules: no excuses"We all know the biggest risks", says Alexis. "Falls from height, moving equipment, lifting, digging, power lines, etc.: we’ve seen the damage they cause. That’s why we have Life Saving Rules, not as suggestions, but as non-negotiables!"• As a leader: Don’t only expect compliance but enable it. Make sure your team has the right equipment, training, and support to do the job safely. No shortcuts. And if you see a rule being broken? Act. Silence sends out the wrong message.• As an employee: Know the rules. Understand why they matter. If you’re ever asked or tempted to cut a corner, don’t.Subcontractors Engagement: one team, one standard"Our subcontractors are facing the same risks we do, often with less support. That’s a gap we can’t ignore", adds Alexis.• As a leader: Include subcontractors from the very start. Inductions, toolbox talks, walk-throughs are there for everyone. Ask for their input, and involve them in safety planning and reviews. When they feel part of the team, they act like it.• As an employee: Reach out. If you see someone new or unsure, check in. A simple "Do you know the rules here?" can save lives. At BESIX, we care for people, whether they’re on our payroll or not.Safety Walks: walk, listen, act"You can’t manage what you don’t see" summarises Alexis. "And trust isn’t always built behind a desk. That’s why Project Management Safety Walks matter: they make safety real, visible, and human."• As a leader: Be present. When you walk the site, don’t just point out issues, but ask questions. Listen, recognise what’s going well, then follow through. Visibility only builds trust if it leads to action.• As an employee: Don’t wait for someone wearing a BE SAFE vest or a manager to speak up. If you see something, say something. Your insight during a walk could prevent the next incident.Time to step up"We’ve let our guard down, but together, we can raise it again", wraps Alexis up. "Safety is often discussed in grand terms like systems, audits, procedures. But in reality, it lives in the everyday choices we make! It’s in how we plan our day. How we speak to one another. How we respond when something doesn’t feel right. We all face moments when shortcuts seem tempting. But in those moments, choosing safety over speed, over convenience, is what deﬁnes a strong safety culture." Let’s not wait for the next close call to remind us what’s at stake, and let’s act now. Because nothing we build is worth a life.Alexis Laroche, Group Director QHSE6 7INSIDE Magazine #123INSIDE Magazine #123

Page 7

Page 8

INSIDE: BESIX has had a strong ﬁnancial year in 2024. Can you highlight the key achievements and what they mean for the Group’s future?Hans Beerlandt: It’s been a strong year despite a global macroeconomic and geopolitical environment which, as you know, has remained volatile and thus challenging. Our revenue grew with 1.7% compared with 2023, but more importantly, our proﬁtability has improved year-on-year. The Group’s adjusted EBITDA improved by EUR 33 million compared with 2023, and our net income more than doubled. Proﬁtability is a key indicator of our operational performance, and it has been one of the contributors to a stronger cash position, improving by EUR 283 million.Cash ﬂow management has been a recurring point of attention the last few years. What has driven this improvement last year, and have we reached our targets?Hans: The increase in results and thus operating cash ﬂow, has obviously contributed to our improved net cash position. However, the main driver of the cash increase last year has been the improvement of our working capital. This is a great satisfaction because it results from increased awareness and discipline overall in the organisation. It is a true collective eort across regions and business units, focusing on contract milestones and receivables. Several major project advances, particularly in the Middle East and Belgium, contributed signiﬁcantly, and we’ve also seen the beneﬁts of streamlined procurement and reduced idle capital. While 2024 was exceptional, our target is to maintain strong operational cash ﬂow by being selective in project intake and driving eciency.Can you summarise the performance across our four Business Lines?Hans: The Group’s performance has really been solid across most Business Lines. BESIX Construction recorded improved results compared to the three previous years, thanks to a more balanced approach to risk and strong operational discipline. In Europe, our results were boosted by major public infrastructure investments. In the Middle East our projects in Saudi Arabia are driving improved proﬁtability, and in Australia, BESIX Watpac achieved a remarkable turnaround after a few challenging years.The BESIX Aliates again played a crucial role in 2024, contributing around one-third of the Group’s revenue. Their strong performance not only highlights their operational excellence but also reinforces the Group’s ﬁnancial resilience and strategic position across key markets.Despite a real estate market which remained very challenging in 2024 – marked by high construction costs and increasing delays in building permits – BESIX RED managed to deliver commendable results, outperforming most of its competitors.Finally, 2024 was a standout year for BESIX Invest, which reinforced its position in public-private partnerships (PPPs) across Europe and the Middle East. From securing major infrastructure and sustainability-focused contracts to achieving ﬁnancial close on projects like the R4 West and East in Belgium and a pioneering waste-to-energy plant in Ghent, the team delivered record results.With the order book increasing with 61% to reach an all-time high at the end of last year, how are we managing inﬂation and ﬁxed-price contract risk across this large backlog?Hans: This is one of our top concerns. We’ve become more rigorous in pricing models and indexation clauses, particularly for multi-year projects, and making sure we have balanced risk-proﬁt contracts. In regions where ﬁxed-price contracts dominate, we either hedge or build in contingency where possible. Our Tender Risk Committee now jumps in earlier in the tendering process, and we don’t bid for projects where risk cannot be mitigated or appropriately priced. The fact that we’ve improved tender margins in 2024, even with a signiﬁcantly expanded pipeline of projects, shows that this discipline is paying o.What’s on the horizon for the Group in the coming year?We’ve entered 2025 with a solid and diverse pipeline of projects that oer a healthy balance between risk and reward. While global inﬂation and geopolitical tensions continue to create uncertainty, we’re focused on strengthening our core construction activities and improving our proﬁt margins. We’re taking a cautious approach with regards to the real estate market, yet we do expect to make progress by securing permits for several key real estate projects across Europe this year. And last but not least, our PPPs and concessions continue to provide increasing recurring revenue, which adds visibility to our long term ﬁnancials. With a record order book, improving cash generation, and strategic expansion into energy and infrastructure PPPs, the Group has posted a solid performance in 2024. We spoke with Hans Beerlandt, BESIX Group’s Chief Financial Ocer to understand what’s behind the numbers, how the business is managing risk, and where we go from here.STRATEGY T. Dossogne & F. Bribosia REVENUE: EUR 3.5 billion RECORD ORDER BOOK OF EUR 8.2 billion AT THE END OF 2024 ADJUSTED EBITDA: EUR 150 million2023 2024150117 NET INCOME: EUR 42 million2023 20244218We’ve become more rigorous in pricing models and indexation clauses, particularly for multi-year projects, and making sure we have balanced risk-proﬁt contracts.Hans Beerlandt, Chief Financial Ocer.9INSIDE Magazine #1228INSIDE Magazine #122Navigating challenges, delivering results:BESIX Group’s remarkable performance in 2024

Page 9

Page 10

The strategy that guided us through the early 2020s served us well, but today’s landscape calls for fresh thinking and renewed clarity.Pierre Sironval, CEO of BESIX GroupCOVER STORY F. BribosiaA new vision to build our legacyWe all perform at our best when we’re moving in the same direction. A clear, shared vision not only aligns our decisions but also inspires our teams and channels our eorts where they count. It gives meaning to our day-to-day work and helps turn ambition into real, lasting impact. Recently, BESIX has turned an important page: we have refreshed our vision and strategic framework to reﬂect the world we live in, the new challenges we face, and the opportunities ahead. This new direction stays true to our DNA, while setting our sights ﬁrmly on what’s next, together. Pierre Sironval, CEO of BESIX Group, explains what it means for you, and why it matters.Why now?Pierre explains: "The world has shifted, and so have we. Global dynamics are changing rapidly: client expectations are rising, regulations are tightening, and major advances in technology and sustainability are reshaping the very foundations of our industry. The strategy that guided us through the early 2020s served us well, but today’s landscape calls for fresh thinking and renewed clarity."Concretely, over the past months, BESIX’s leadership paused to ask some fundamental questions: what is driving us today, what strengths truly set us apart, and where do we need to go next? "Through deep internal reﬂection and open conversations with colleagues, clients, and partners, we’ve arrived at a new vision and a set of strategic drivers." They are ambitious, grounded, and geared for impact.Our new vision"We take on today’s boldest challenges to build a lasting legacy."This simple yet powerful statement captures what sets BESIX apart: our courage to take on the complex, our passion for building, and our commitment to delivering value that stands the test of time. Let’s have a closer look:• "We take on today’s boldest challenges": whether it’s the energy transition, climate resilience, connected and smart mobility or cities, we’re not afraid to tackle the complex or unconventional. We step up where others hesitate.• "To build": This is our craft, our pride, and our core expertise. We are contractors, and more: we’re also business integrators, engineers, designers, developers, and makers. Building is where we begin, but the value we bring extends far beyond.• "A lasting legacy": our impact lives on in the cities we shape, the communities we serve, and the infrastructure we deliver. From hospitals and water treatment plants to museums and data centres, we’re creating places that matter, not just for today, but for generations to come.The ﬁve strategic drivers"A vision means little without action," adds Pierre. "That’s why we have identiﬁed ﬁve strategic priorities, ﬁve clear areas where we will invest, focus, and lead in the years ahead. Each one supports our ambition to grow sustainably and deliver lasting value."1. Inspire, invest, and instil an irresistible culture to drive our successOur people are our strongest asset. Talent runs deep across our Group, across countries, business units, and functions. But talent alone isn’t enough. It needs the right environment to develop, thrive, and succeed. This strategic driver is about cultivating a culture where curiosity is welcomed, performance is recognised, leadership is nurtured, and feedback becomes second nature."We’re investing in better tools, stronger development programmes, and a culture of continuous growth. We want everyone at BESIX to feel motivated, supported and empowered to deliver their best work, and to grow as professionals and leaders."10INSIDE Magazine #123INSIDE Magazine #12111INSIDE Magazine #12110

Page 11

Page 12

In a nutshell, risk management is about knowing when to push forward… and when to walk away.Pierre Sironval, CEO of BESIX GroupCOVER STORY F. BribosiaA conﬁrmation of our valuesAs we reﬁned our strategy, we’ve also taken a close look at our company values: co-creation, passion, excellence, respect and unity. "Through conversations with senior leaders and teams, we’ve conﬁrmed that our values still ring true. They continue to reﬂect how we want to work together, support each other, and lead with integrity. Moving forward, these values will remain our compass," concludes Pierre.Let’s build this future together"As you see, we have a clear vision, a strong strategy, and the capabilities to make it real," Pierre smiles conﬁdently. But having a good strategy is not enough; it now needs to be implemented to achieve meaningful results. "What matters next is execution, and that starts with each of us. As leaders, team members, and experts in what you do, you play a crucial role in turning direction into results."Let’s go forward with conﬁdence… and build our legacy. 5. Proﬁtability as the foundation of our diversiﬁcation ambitions"Of course, proﬁtability isn’t our end goal, but let’s be honest: it’s the engine that powers our growth," insists Pierre. "We are more than a contractor; we are a full-spectrum player that integrates design, construction, development, and investment. Diversiﬁcation into areas like real estate, infrastructure equity, or smart services is what sets us apart from the competition and gives us an edge – and for this, we need a strong, proﬁtable core."That’s why for instance, we are prioritising high-margin and high-value projects, avoiding growth for growth’s sake, and establishing a 3% net margin as the new standard. "To make it simple: proﬁt enables us to reinvest, to innovate, and to grow sustainably," adds Pierre.4. Robust dedication to risk managementWe operate in a high-stakes environment and risk is a reality in our business. "But it’s something we can manage intelligently," completes Pierre. "To succeed, risk management must be fully embedded across everything we do, from project selection to contracting, pricing, and execution."That means for instance, prioritising balanced contracts that reﬂect our true value, saying no to opportunities that don’t align with our expertise or reward our eorts fairly, or being transparent and data-driven in how we assess opportunities. "In a nutshell, risk management is about knowing when to push forward… and when to walk away", concludes Pierre.3. Embrace digital to continuously enhance our processes"We’re in a competitive industry, and digital tools can give us an edge if we use them smartly", continues Pierre. "This priority is about adopting ﬁt-for-purpose digital solutions that help us make our operations more ecient, precise, and resilient."Whether through BIM, advanced project controls, or mobile apps for ﬁeld teams, digital must become second nature in how we work. "Embracing this shift is essential to maintaining our competitive edge and staying ahead of the curve!"2. A sound commitment to embrace sustainability"Sustainability isn’t a nice-to-have; it’s a non-negotiable," introduces Pierre. "It’s a fact that clients demand it, regulators expect it, and our planet depends on it. For us at BESIX, sustainability is both a responsibility and a remarkable opportunity to lead."We’re already making strides, when we are at work on Belgium’s largest green hydrogen plant (Hyowind), advancing PFAS treatment solutions via BESIX Environment, or scaling up osite and modular construction through BESIX Technology."We know we won’t lead the entire value chain," recognises Pierre, "but we can lead where it counts. From cutting emissions on our sites to helping clients decarbonise, we’re turning good intentions into measurable impact. And we’ll continue pursuing projects that align with this ambition."Combination of solar panels and a battery system on BESIX Infra's project site in Hamme, BelgiumSignature of BESIX Invest's contract with De Watergroep (Belgium), in November 202412INSIDE Magazine #122INSIDE Magazine #12213

Page 13

Page 14

Enhancing urban trac ﬂowsIn Libreville, two ﬂyovers will be constructed to reduce congestion on the city's busiest roads. Additionally, four pedestrian bridges will enhance safety by providing secure crossings over busy highways. One of these pedestrian bridges has already been completed and inaugurated in December 2024, with the remaining three scheduled for phased completion.A vital link: the Ebel-Abanga bridgeBeyond the capital, the Ebel-Abanga bridge is a key element of the project. As a crucial transport corridor linking Gabon to Cameroon and the Republic of Congo, the new bridge will replace an aging single-lane structure from the 1970s. The new 200-meter-long bridge, composed of two lanes and pedestrian sidewalks, will signiﬁcantly improve trac capacity and safety on this strategic route.Innovative engineering solutionsThe entire project is based on the Unibridge® modular system by Matière, known for its durability, adaptability, and rapid assembly. Prefabricated bridge elements ensure ecient transport and quick installation, making the system suitable for both urban infrastructure and remote environments like Ebel-Abanga.For the Ebel-Abanga bridge, a combination of lifting and launching methods were employed. While the lateral spans were installed using cranes, the central span was assembled and launched from an adjacent span, oering a time-ecient solution tailored to the site’s constraints.A key engineering challenge emerged in the design of the foundations, particularly on the riverbanks. The initial solution outlined in the tender proved inadequate: the riverbed’s width made it impossible for the proposed pile conﬁguration to support the central Unibridge® span, which has standard dimensions.14 15INSIDE Magazine #123INSIDE Magazine #123ENGINEERING C. JacquetBuilding bridges in Gabon: a model of engineeringexcellenceTo overcome this, the Design and Methods teams of the BESIX Engineering Department redesigned the foundation solution optimising the size of the piers and their foundation. On the right bank, where the bedrock is shallow, micro piles were used to anchor the structure. On the left bank, driven piles were required to reach the bedrock over 30 metres below the surface. Simultaneously, Matière adapted the dimensions of its standard Unibridge® module to align with the new foundation layout, demonstrating a ﬂexible, integrated approach to solve the challenges on-site.Another signiﬁcant challenge involves the use of coerdams—watertight enclosures necessary for foundation work—required to install piles and foundations that extend into the riverbed. However, because the bedrock lies at a shallow depth, traditional sheet pile coerdams are not feasible, as they cannot be driven into the rock. A conventional alternative, a combi-wall system with bored piles anchored into the bedrock, is also problematic due to the limited availability of suitable machinery in Gabon, especially in this region. The BED is actively working with the site teams to identify a viable solution.Successful collaborationThrough careful planning, innovative methods, and expert execution, this project is a successful example of ﬂawless teamwork. The BED ensured optimal design and engineering solutions, the Franki Foundations team provided deep foundation expertise, and the Design and Methods teams streamlined construction techniques. Together with its partners and the client, BESIX is on track to signiﬁcantly enhance Gabon’s infrastructure, and the project stands as a model of engineering excellence and infrastructure development in the country.Looking aheadThe construction of the Ebel-Abanga bridge began in January this year and is scheduled for completion by late 2026. Meanwhile, works are in progress on the pedestrian bridges, with the next phases underway. The construction of the ﬁrst ﬂyover is expected to begin this summer 2025, with the second one following six months later. BESIX’s latest construction project in Gabon will play a key role in transforming transportation across the region. This ambitious initiative includes several infrastructure developments throughout the capital, Libreville, and the national road network. BESIX, in partnership with Matière and MBB, is responsible for the design and construction of a bridge, two ﬂyovers, and four pedestrian bridges on behalf of the Ministry of Public Works.

Page 15

Page 16

From left to right: Head of BIM Thijs De Potter; BIM Modeler Maryam Sarrami, BIM Advisor Saskia De Beer, and BIM Modelers Blanca Aguilera de Carballo, Yannick Cardeynaels, and Thomas Volkaert.One central digital working environmentAt BESIX Infra, BIM stands for Building Information Modelling: managing construction information throughout the project. BESIX Infra works with a digital working environment, ACC (Autodesk Construction Cloud). In it, the company combines (open) data and technical plans from the design oce into practical execution plans. Once an execution plan is drawn up, additional data and calculations can be generated that optimise and simplify processes.BIM also creates accurate 3D models of roads, waste water drainage and sometimes utilities. This helps to assess risks and work out solutions even before the ﬁrst shovel goes into the ground. BESIX Infra does this on the basis of the ISO 19650 standard, which ensures uniform and reliable data management.Why BIM makes a dierenceYou build a construction site together – and that’s exactly where the power of BIM is to be found. "BIM ensures that everyone – from worker to Project Manager – works with the same, up-to-date information. This reduces errors and failure costs and speeds up project execution", says Thijs De Potter, Head of BIM at BESIX Infra. In addition, BIM strengthens collaboration between services. Thanks to clear agreements and standards, all parties involved speak the same language. "In this way, BIM becomes the link between the site team and the internal services, allowing for more ecient communication and work. As models are built in a well-thought-out manner and enriched with (open) data, the company can use smart technologies", adds Thijs.The construction industry is evolving at lightning speed, and digitisation is playing a leading role in this. BESIX Infra is fully committed to this digital transformation. No more separate plans in mailboxes, but one central digital working environment in which all execution plans are managed and optimised. Thanks to its BIM department, the company takes structure, eciency and cooperation to the next level – and it pays o, both on and o site.BIM in action: the construction site in HalleA good example is the BESIX Infra construction site in Halle (Belgium). As soon as the project was awarded, their BIM team went to work. The original tender plans were ﬁrst critically reviewed and aligned with BESIX Infra standards. This was followed by a thorough reality check: topographical data, cone penetration tests, drone images and even going on site to verify things before integrating everything into the model. Good cooperation with topographers is an important part of this whole process. Point clouds, measured points and even results of camera surveys – showing, for example, the condition of existing pipes – are integrated into the models, all with the aim of optimising and ﬁne-tuning design plans into execution plans."When BESIX Infra shares information, it must be one hundred per cent reliable. That’s why we never just deliver plans. Before they reach project management, they undergo an internal quality check. A second BIM colleague carefully checks everything according to the four-eye principle. This increases the reliability of the data – an absolute must, as the construction site must be able to trust the accuracy of the plans unquestioningly", Thijs emphasises.3D models bring clarityA detailed 3D model was also developed for Halle. This not only gives insight into technical feasibility, but also helps to explain the works visually to clients or utility companies, among others. Such a model quickly clariﬁes where potential bottlenecks exist and why certain disruptions are unavoidable. Detecting and discussing such situations in advance avoids delays and increases safety and comfort on the construction site.From plan to executionBESIX Infra strongly believes in the power of collaboration. "By engaging in continuous consultation, you devise better solutions and increase the knowledge of all employees. During the preparation of the execution plans, BIM colleagues engage with the project management and the topographers to deﬁne the best execution method together", according to Thijs. This doesn’t just happen from behind their desks; the BIM professionals also actively go to the construction site. This keeps them in touch with practice and allows them to ﬁne-tune things quickly when necessary. That approach ensures smooth execution, with room for targeted intervention when the situation calls for it.BIM also has a visible presence on the construction site itself. The Site Manager and foremen have access via the cloud to all execution plans, including info on domestic connections and disconnections. They can add GPS data themselves or indicate exactly where to dig. This makes work more ecient and avoids duplication or misunderstandings.On completion of the project, all data can be delivered in an OTL-compliant manner, if required by the client. In this way, the company not only constructs more smartly today, but also leaves something for the future: a digital legacy that subsequent projects can build upon. BIM: the digital power behind BESIX Infra’s construction sites16 17INSIDE Magazine #123INSIDE Magazine #123ENGINEERING S. Van Damme

Page 17

Page 18

Navigating turbulent timesLet's start with a short snapshot of the situation: key factors aecting the real estate industry include high construction and energy costs, sustained inﬂation, rising interest rates, and signiﬁcant supply chain disruptions. Additionally, extended permit processing times have further increased operational diculties. Institutional and private investors are currently facing high uncertainty, therefore adopting a cautious "wait and see" attitude. Quite a bleak picture, isn’t it? However, despite these challenges, BESIX RED’s agility, expertise, and strong team enabled the company to navigate these turbulent times, achieving commendable results in 2024. Through the conclusion of strategic oce transactions, notably the sale of the WellBe project in Lisbon (27,600 m²) to Caixa Geral de Depósitos, Portugal’s largest bank, and PURE – La Madeleine in Lille (8,000 m²) to investor Swiss Life Asset Managers France, BESIX RED recorded a turnover of EUR 113.6 million in 2024.These oce transactions are especially signiﬁcant as they highlight BESIX RED's strategic approach: consistently staying ahead of the market by delivering innovative, high-quality, and strategically located developments with an ESG value. Its successful diversiﬁcation, spanning ﬁve European countries and 19 cities, and encompassing residential, oce, mixed-use, and retail developments, continues to prove its eectiveness.Residential sales also played a crucial role in the company’s performance in 2024, with nearly 100 units sold. "Innovation, sustainability, and community" is the new "Location, location, location"Enjoying a strong track record with The Cosmopolitan in Brussels (Belgium) and Sluishuis in Amsterdam (the Netherlands), both internationally recognised through prestigious awards, BESIX RED continues to develop ambitious and unique living experiences. As architect Norman Foster once wisely stated: "As an architect you design for the present, with an awareness of the past, for a future which is essentially unknown."BESIX RED embodies this philosophy, emphasising strategic locations, collaborations with prestigious architects, and the application of ambitious ESG criteria to meet clients’ needs and aspirations.Discover a selection of BESIX RED’s ongoing and most ambitious residential developments:ANTHEA (Brussels, Belgium): designed by Urban Platform Architects, Anthea transforms a dated 1980s oce building into 48 premium apartments and 385 m² of oce space, oering exceptional views over the Val Duchesse estate in Auderghem.LES PROMENADES D’UCCLE (Brussels, Belgium): co-developed with Matexi and designed by A2RC and Espace Architectes, this project of 43,500 m² creates a vibrant new district on the Engeland Plateau, adjacent to a Natura 2000 protected site. Oering nearly 300 residential units in a green environment, including both houses and apartments, the project pays particular attention to sustainable living and residents’ wellbeing.In an exceptionally dicult economic and geopolitical environment for the global real estate industry, BESIX RED, the Group’s Business Line dedicated to real estate development, has demonstrated remarkable resilience in 2024. Real estate has traditionally been viewed as a safe investment, but today's market conditions lead us to paint a dierent picture.BESIX RED’s recipe in a transforming real estate landscapeCOVER STORY L. CardonaINSIDE Magazine #12218INSIDE Magazine #12219

Page 19

Page 20

ESPRIT COURBEVOIE (Louvain-la-Neuve, Belgium): co-developed with partner Thomas & Piron Bâtiment and designed by Montois & Partners Architects, Syntaxe Architects, R2D2 Architecture, and CERAU, Esprit Courbevoie is a 59,600 m² residential and oce development in the heart of Louvain-la-Neuve. This new neighbourhood bridges the train station and surrounding areas with residential units and retail spaces, creating a vibrant urban environment.GREEN STATION (Gembloux, Belgium): developed in partnership with Thomas & Piron Bâtiment and designed by Syntaxe Architectes, Green Station is a 56,890 m² residential development located next to the Gembloux train station. Comprising 535 residential units across 10 buildings upon completion, the project will be executed in four phases. It emphasises sustainability, soft mobility, diverse apartment typologies, and fosters inter-generational community living.MEADOW (Herent, Belgium): a collaboration with Vanhout Projects, Binst Architects and POLO Architects, Meadow is a 40,840 m² residential development located in the centre of Herent, near Leuven. Meadow is a new neighbourhood featuring thirteen buildings comprising 256 living units, ranging from studios to four-bedroom apartments and penthouses, promoting sustainable living and a vibrant community life.DUUO I (Lisbon, Portugal): designed by Nuno Leónidas Arquitectos in collaboration with Compagnie Du Bois Sauvage as ﬁnancial partner, DUUO is an upscale residential development covering 34,000 m², comprising 280 apartments across two condominiums in Lisbon's popular Avenidas Novas district. With wellbeing at its heart, the project oers high-end amenities including a swimming pool, ﬁtness centre and a multi-purpose room.Early 2025 was marked by the launch of two highly anticipated projects in Belgium, further strengthening BESIX RED’s residential portfolio:O'VERT (Ghent, Belgium): designed by AXENT Architects, O’Vert transforms the historic Meyvaert glass factory site at Dok Noord into a sustainable living environment featuring 131 residential units, oce spaces and a public park. MATISSE 16 (Brussels, Belgium): designed by Neutelings Riedijk Architects and AXENT Architects, Matisse 16 Living is part of a broader, ambitious 41,500 m² mixed-use development. Under the brand Matisse 16 Living, it oers 156 modern, sustainable apartments from studios to 3-bedroom, ideally located between the European institutions and NATO headquarters, with excellent connectivity and within a landscaped garden.Expressions of interest are also now open for DUINHIL in the coastal city of Kijkduin (The Hague, the Netherlands). Located directly on the beach and dunes, Duinhil, developed by BESIX RED and Chase RED, and designed by Van Egmond Architects, oers a 49,048 m² mixed-use development comprising 145 high-end apartments, a wellness hotel, a restaurant, and a ﬁtness and spa area. Stay tuned for more updates!At BESIX RED, we believe real estate goes beyond buildings. It is about creating memorable experiences for living and working. In challenging times, BESIX RED proved that, as the saying goes, "when the going gets tough, the tough get going" — and we keep moving forward with purpose and resilience. Interested in exploring these projects or experiencing the distinctive BESIX RED approach? Whether you are looking to purchase a property or seeking compelling investment opportunities, special conditions apply to BESIX Group employees. To beneﬁt from them, please contact our colleagues directly at communication@besixred.com.COVER STORY L. CardonaINSIDE Magazine #12221INSIDE Magazine #12220

Page 21

Page 22

22 23INSIDE Magazine #123INSIDE Magazine #123The tunnel elements are ﬂoated up one by one and transported to Antwerp, where they are still temporarily parked. They will then be repositioned in their ﬁnal place under the bottom of the Scheldt. Can you explain a bit more about this complex process? Jan: Transporting and immersing tunnel elements each weighing 65,000 tonnes is not without risks. Weather, Scheldt currents, tides (in Antwerp, there is a dierence of about 5 metres between high and low water), freshness or salinity of the water, availability of trained and skilled personnel, tolerances on placement and so on have to be taken into account. The journey of each element from Zeebrugge to Antwerp takes about 30 hours. Sinking the tunnel sections takes a further 24 hours and is best done at neap tide, a time window when the current in the Scheldt is at its lowest. This time window occurs only twice a month, hence the two-week gap between each sinking operation. COTU has made every eort to identify all the risks and mitigate them to the best of its ability. One of the things we did was to set up a lab test in which the Scheldt was recreated to scale so that the eect of ﬂow on the tunnel elements could be observed. The information from these tests was used to calibrate the digital design models. The entire transport route was also simulated in a kind of ﬂight simulator, but for towing tunnel elements. And then comes the most critical moment: the sinking of the tunnel elements. For this, we work side by side with a specialised subcontractor.Exciting times, then, for the project management team! What’s next after the last element is sunk? Jan: There are still four years of work before the tunnel can be commissioned. For instance, a sand foundation will be laid under the elements, the tunnel will be backﬁlled and the dikes on the left and right banks will be restored. Also, all temporary installations for transportation need to be removed, the ﬁnal concrete ballast needs to be poured, all joints need to be ﬁnished seamlessly and the cladding of the walls needs to be installed. We will then call on our BESIX Infra colleagues for the road paving, and BESIX Unitec will be responsible for the technical installations. But ﬁrst, we have to go through this important transport and sinking phase. 2025 really is a key year for our team! PROJECTS C. VerloigneSince 2020, BESIX has been working within the joint venture COTU on the Scheldt Tunnel, the crowning glory of the Oosterweel link, the project which aims to close the Antwerp Ring Road. The Scheldt Tunnel will be a third link between left and right banks and should be ready for use by vehicles by 2030. The Scheldt Tunnel is an immersed tunnel, where the immersion elements are prefabricated in a construction dock and towed by water to the tunnel location, where they are then immersed piece by piece. COTU's construction site is spread across three locations. The team works on the tunnel entries on the left and right banks in Antwerp, but the prefabricated tunnel elements were built in a construction dock in Zeebrugge. The reason is simple: in Antwerp, there was not enough room to set up a construction dock large enough to accommodate the eight elements, which together are almost 1.3 km long. At the time of writing, everything is just about ready for parties to start transporting the ﬁrst tunnel element. INSIDE spoke to our very own Jan Bauwens, Project Director of the Scheldt Tunnel and a BESIX man through and through. INSIDE: After an almost two-year build of the elements, the works are gaining momentum. What was done exactly? Jan Bauwens: In the space of just a few days, the construction dock was completely submerged and the eight concrete tunnel sections, each larger than a football pitch and weighing up to 65,000 tonnes, disappeared from view at a rapid pace. Each element is kept ﬁrmly on the bottom by the ﬁve ballast tanks ﬁlled with water. Early May saw the start of the process to ﬂoat the elements back to the surface one by one, and transport them via the North Sea to the Scheldt. Raising each tunnel section is a complex and precise process. While the element is being ﬂoated up, sturdy cables hold it in place. Once the ballast tanks are completely emptied, the tunnel element will slowly ﬂoat to the surface. However, at that point it will be too far above water. Then, to lower it again just enough so that only the roof section remains slightly above water, concrete is poured as ballast in several places inside the tunnel section. During this process, there are workers working inside each tunnel element – this work is not for softies! Jan Bauwens, Project DirectorEntrance Scheldt Tunnel on Antwerp's left bankFlooding the dock in ZeebruggeSubmerged tunnel elements in ZeebruggeThe journey of a lifetime:Scheldt Tunnel elements set course for their ﬁnal destination in AntwerpThe journey of each element from Zeebrugge to Antwerp takes about 30 hours. Sinking the tunnel sections takes a further 24 hours and is best done at neap tide, a time window when the current in the Scheldt is at its lowest.Jan Bauwens, Project Director

Page 23

Page 24

24 25INSIDE Magazine #123INSIDE Magazine #123"These types of long-term partnerships, where we work together from the very beginning, allow us to realise and exploit complex projects like this eciently," explains Thijs Lambert, Manager Tendering PPP Europe at BESIX Invest. "They also ensure a stable revenue stream, which beneﬁts our company as a whole."The synergy between BESIX, the BESIX entities and Indaver is a key factor in the project’s success. While BESIX is responsible for the design, civil works and project management, Indaver brings decades of experience in waste treatment and management. "Our complementarity strengthens the project at every stage," Thijs adds. A sustainable impactThanks to this mono-processor, Aquaﬁn will be able to signiﬁcantly reduce the carbon footprint of its sludge processing. Since it’s a mono-processor and it only utilises sewage sludge as an input, the recovery of energy and valuable resources is maximised. "Projects like this highlight how we can combine engineering excellence with ecological responsibility," says Koen. "By helping our clients meet their environmental targets, we also contribute to the Group’s wider sustainability ambitions."An ambitious timelineFollowing an intensive preparation phase, the ﬁnancial and contractual close was ﬁnalised in October 2024. Construction has been progressing at a steady pace for a few months now. In March 2025, the foundation slab for the production hall was cast. May saw key milestones including the slipform construction for the sludge bunker and the installation of the prefab structure for the technical area. Currently, the team is working on the connecting foundation slab between the production hall and the bunker, which is scheduled to be concreted by the end of July.Commissioning starts within a year from now. "It’s an ambitious timeline," Koen admits, "but thanks to good planning and seamless coordination between the partners, we remain ﬁrmly on course in every aspect." PROJECTS I. BuysseBESIX has been successfully involved in public-private partnerships (PPPs) for infrastructure projects for decennia. In recent years, however, we have been increasingly looking into other sectors as well, such as energy and environmental projects. A prime example of this evolution is the cutting-edge sludge mono-treatment plant for wastewater treatment company Aquaﬁn in Ghent, Belgium.Turning waste into energyScheduled to begin operations in 2027, the new facility will thermally treat sewage sludge from approximately four million residents. This corresponds to two-thirds of all sewage sludge in Flanders. Collected from Aquaﬁn’s 328 wastewater treatment plants, the sludge will be processed to generate steam, which in turn will be converted into electricity.The facility is located on the premises of ArcelorMittal Belgium in the port of Ghent. The company will utilise the steam output produced by the sludge processing as an additional source for its own internal steam network. The electricity generated will be supplied to FOSTER, the Special Purpose Vehicle (SPV) established by BESIX and its partner Indaver for this project.The sludge mono-processor will play a central role in Aquaﬁn’s "road-to-zero" strategy, which aims to reduce the organisation’s emissions with 48% by 2030. "With this plant, we’re making a major contribution towards those sustainable targets," says Koen Van Lerberghe, Project Manager at BESIX Belgium-Luxembourg. "The environmental beneﬁt is substantial, amounting to a negative global warming impact of 28,000 tonnes of CO2-equivalents per year."The strength of Public-Private PartnershipsWhat makes this project particularly remarkable is its integrated approach. Through FOSTER, BESIX and Indaver are responsible for every phase: from the Design, Build and Financing through to the Maintenance and Operation until 2046 (DBFMO). BESIX Environment, too, is involved in the project, providing a Process Engineer during the EPC phase and as a 40% stakeholder in the FOSTER O&M joint venture. Together with Indaver, it will oversee the operations and maintenance phase. with sludge mono-processor in GhentKoen Van Lerberghe, Project Manager at BESIX Belgium-LuxembourgThijs Lambert, Manager Tendering PPP Europe at BESIX InvestContributing to a sustainable future

Page 25

Page 26

26 27INSIDE Magazine #123INSIDE Magazine #123PROJECTS J. MorrisonPROJECTS H. El NammariProgress at the Aramco Stadium project (Saudi Arabia) continues at full speed, with the workforce expected to peak at around 9,000 labour on-site. Just one year after the ﬁrst blinding concrete was poured, the team has reached a major milestone with the successful lift of the ﬁrst structural steel truss for the roof’s outer ring. This truss marks the beginning of the cantilever roof that will eventually cover the seating areas and is both a key architectural and structural element of the ﬁnal design.This complex multi-stage tandem lift, involving approximately 250 tonnes of steel, took 36 hours to execute. It is the ﬁrst of many engineering and coordination feats required to bring this iconic stadium to life. The achievement was made possible through months of detailed planning and smooth coordination across all fronts – from selecting the right subcontractor, to the roof design by the technical oce, to fabrication oversight by the steel team, and the ﬁnal on-site installation by the operations crew. What’s next?The team is now focused on maintaining momentum as work shifts to lifting the remaining outer ring elements into position. If all proceeds as planned, the steel structure will be completed by the end of 2025.The installation of the iconic upper petal beams is expected to be one of the most technically and operationally challenging phases of the project. This critical stage will lead to the de-propping of the roof structure – a milestone that many across the team are eagerly anticipating. Once complete, it will deﬁne the stadium’s ﬁnal shape and unlock full-scale façade works on all fronts.Rowan Riggall, Project Director: "Our team has been assembled from BESIX business units around the globe and integrated with our JV partner Al Bawani. The camaraderie we’ve built in such a high-pressure, high-performance environment is truly remarkable. We’re a tight-knit team that supports one another – especially with many of our sta working far from home." Reaching new heights at Aramco StadiumRowan Riggall, Project DirectorLocated in central Christchurch, One New Zealand Stadium at Te Kaha will be only one of two stadiums in the world with a fully covered roof including a clear span over the ﬁeld-of-play. The stadium has a seating capacity of 30,000 and will have the capacity to accommodate over 36,000 spectators in concert mode. Once complete, it is set to host international sporting matches and major concerts. One year countdown is onMain construction works commenced in 2022 and works are on track to be completed in 2026. Close collaboration between BESIX Watpac and Christchurch City Council, the dedication of the project team and strong subcontractor relationships have all played a crucial role in the project’s success, ensuring it remains on budget and on schedule. The project has also delivered signiﬁcant beneﬁts to the local economy, with 90% of the workforce and 77% of subcontractors and suppliers sourced locally. Iconic roof installation completeEarlier this year, the team reached a signiﬁcant milestone in construction – lifting the ﬁnal steel modules into place to close out the remarkable steel superstructure. The roof structure consists of over 80 steel modules, each weighing at least 75 tonnes. The ﬁnal major components — two radial truss modules located at the northern end of the arena — are 37 meters tall and weigh 160 tonnes each, making them the heaviest lifts of the project. These modules were lifted into place by the largest crawler crane in New Zealand, a 1,200-tonne crawler crane, in combination with a 600-tonne crawler crane. Installing these ﬁnal modules marked the completion of a signiﬁcant phase of the project. Every stage of the roof installation was complex, presenting unique challenges, with the team successfully navigating each one. Now with the ﬁnish line in sight, BESIX Watpac remains committed to delivering One New Zealand Stadium at Te Kaha to the highest standard. Bringing a sporting icon to lifeKey ﬁgures for the project as at April 2025• 2,780 people employed• 1.7 million work hours• 32,700 m³ of concrete • 16,300 tonnes of steel• 1,100 panes of glass

Page 27

Page 28

28 29INSIDE Magazine #123INSIDE Magazine #123Immediate mobilisationFaced with this extremely critical situation, Socogetra's civil engineering team, in collaboration with the engineering support department, was immediately mobilised to draw up an intervention strategy. In just a few days, a price oer and precise implementation procedures were submitted to the client. Three days later, he conﬁrmed its conﬁdence in Socogetra. A race against timeAs soon as Socogetra received the order, everything accelerated. To meet the very tight deadlines – 15 calendar days of work – the teams had to be rigorously organised. The design oce carried out the calculations during the day, and the parts were manufactured during the night and installed on site the following morning.The various phases of the operation were carried out with precision:• Securing the gate;• Removing the top hinge;• Repositioning the gate by jacking;• Reﬁtting the hinge;• Closing the gate;• Final adjustment of the gate underpinning.Thousands of m³ of water to controlThis type of operation requires advanced expertise to drain an immense volume of water. The lock is 225 metres long and 25 metres wide, with a dierence in level of 4.45 metres. The challenge was to work with precision in a complex environment, combining responsiveness and eciency in the face of the urgency of the situation. PROJECTS O. PetryPROJECTS M. MaréchalThe project to build a sports hall in Clavier (Belgium) was shelved for many years before being given a new lease of life with the creation of the Régie Communale Autonome Clavier – Ouet. The process was relaunched and the contract awarded to Wust. Works began in February 2023 and the Hall is now fully operational.Project detailsThe building covers a built-on area of almost 2,700 m². It is made up of dierent spaces:• A sports hall 24 metres wide by 44 metres long, where a wide range of disciplines can be practised; • Changing rooms and an outdoor covered stand for Clavier football club;• A modular village hall of around 450 m² that can accommodate events and around 400 people;• A cafeteria and a restaurant.Energy eciencyThe building's energy eciency has been a key factor in its development. In the initial studies, in 2017, the hall acted as a forerunner in this ﬁeld. Today, the techniques used are more common, but they can still signiﬁcantly reduce CO2 emissions:• Level K20 achieved for envelope insulation, using insulated timber caissons for the prefabricated facades;• A photovoltaic array to supply power to a nearby school, as well as the car park and outdoor grounds;• The introduction of dual heating, combining a heat pump and a gas-ﬁred boiler to recover energy and heat the water used in the changing rooms. The building has two 20,000-litre rainwater tanks and its own waste water treatment plant. Eective collaboration The building was completed within a tight timescale in order to comply with the imposed criteria for ﬁnancial subsidies. The collaboration between the various parties involved went o without a hitch, and the project was a real success. The uncluttered architecture allows the hall to blend harmoniously into the landscape, and the large expanse of glass provides plenty of light to the various spaces. The project was managed by Eric Gavray, Project Manager, and Sébastien Lopez-Lopez, Works Supervisor. This was Eric's last project before he retired, the successful culmination of his 35-year career at Wust. At the end of 2024, Socogetra was called in urgently by the Wallonia Hydraulic Service to work on the large lock at Ivoz-Ramet (Belgium). The upper hinge of the left-hand leaf of the downstream gate had suered major damage, rendering the lock completely unusable.A hydraulic emergency at Ivoz-Ramet: Socogetra meets the challenge in record timeDid you know? Renowned for its ability to manage technically delicate situations, Socogetra is often called upon to provide back-up for critical interventions. At Ivoz-Ramet, this responsiveness enabled a strategic hydraulic infrastructure to be brought back into service in a particularly short space of time.The strength of our colleagues lies in the mastery and coordination of their trades, thanks to their engineers, methods oce and on-site teams.Eric Gavray,Project Manager©Philippe Piraux©Philippe Piraux©Philippe PirauxA multi-purpose hall in the heart of Condroz

Page 29

Page 30

INSIGHT C. VerloigneINSIGHT F. BribosiaIn a company like BESIX, with diverse teams working across borders and disciplines, Group Rules play that same role. They are not here to slow us down or stiﬂe initiative. Quite the opposite: they enable us to operate safely, ethically, and eciently, wherever we are, whatever we do. We met with Patrick Baeten, Secretary General of BESIX Group, to learn more.Why the update?As the world around us evolves (new governance practices, more complex business environment, emerging risks…), so must our internal framework. "We’ve recently updated our Group Rules to reﬂect the latest expectations, lessons learned, and best practices from across the industry," explains Patrick. "Built around clear topical themes (project acquisition, corporate sustainability, ﬁnances, operations…), the revised rules are designed to protect our people, ensure compliance with ever-stricter regulatory frameworks, strengthen our reputation, and preserve our license to operate, today and for the long term. Just like wearing a seatbelt doesn’t slow you down but keeps you safe, our Group Rules aren’t a barrier to action. They’re a foundation for sustainable success," he adds.Your role mattersEvery one of us plays a part in upholding the integrity and strength of BESIX Group. That starts with knowing the rules, and making them part of how we work, every day."Take the time to read the updated Group Rules. They will be available soon. We have written them to be clear, practical, and relevant. No jargon, no clutter – at least we’ve tried," smiles Patrick."Reading is not enough of course. Now you must feel bound to comply," he adds. "Not because someone’s watching, but because it’s the right thing to do for your team, your projects, and (y)our own professional reputation." In today's digital world, cyber threats are increasingly sophisticated, with phishing being one of the most common and harmful types. Phishing tries to trick individuals into giving sensitive information by pretending to be a trustworthy source. Did you know that BESIX Group receives 42,000 phishing or malware e-mails per month? With the surge of AI, these attacks are becoming more advanced, making it essential for us to stay alert. AI-powered phishing can personalise attacks by using information from social media and other public sources. These attacks, known as spear phishing, target speciﬁc people or organisations, making them more likely to succeed. Additionally, AI can create realistic deepfake voices or videos, adding another layer of deception.Preventing phishing attacksWhile the threat of AI-enhanced phishing is real, there are several steps we can take to protect ourselves and our company. 1. Are you expecting the message or is the request unusual in any way? If the message gives you even the slightest suspicion or weird feeling, you should proceed with caution. 2. If you are suspicious, here’s what you can do: • Always verify the sender's e-mail address and look for any inconsistencies (language, spelling errors, etc.) or unusual domain names.• Be wary of unsolicited e-mails that ask for personal information or prompt immediate action. Urgency is a trick cyber criminals use to give you less time to grow suspicious. • Hover over links to see their true destination before clicking. If in doubt, do not click on any links or open any attachments. • If you have the ‘Phished’ button in your Outlook, ﬂag any suspicious e-mail by clicking it. This will prompt your IT-department to take a look at it. Only proceed with the e-mail once you’ve received their green light. If you don’t have the ‘Phished’-button, contact your local IT-department. 3. Be mindful of whaling attacksWhaling is a type of phishing which targets high-proﬁle individuals like executives, through e-mails pretending to be legitimate. These attacks seek sensitive information or ﬁnancial transactions. If you suspect a whaling attempt, verify with the executive directly or inform your IT department. From trac signs to safety warnings on your hot takeaway coee cup, we encounter rules every day. They may seem restrictive at ﬁrst, but they serve a vital purpose: they help us stay safe, make sound decisions, and respect those around us. In short, rules make things work.This edition of INSIDE Magazine has already touched on safety performance on our sites, but safety doesn’t stop at the construction site gates. Protecting our company and personal data is also imperative – and it’s everyone’s responsibility.Group Rules: green lights, not red tape!Safety doesn’t stop at the site gates –beware of your online safety as wellRules don’t kill initiative… They protect itImagine cooking in a kitchen where there’s no hygiene, no responsibilities, no labels on ingredients. Sure, it’s "easy"… but would you want to eat the result?In the same way, a business without clear rules is a recipe for confusion, errors, and even disaster. Our Group Rules create a common language and standard for decision-making, set boundaries that keep us out of trouble, and support accountability across all levels.When you follow the rules, you don’t need to second-guess yourself. You are free to focus on what matters: delivering superb quality projects!Small actions – big impact! • Keep software updated to protect against malware and viruses.• Log o of your work devices when you leave them unattended – yes that also means putting your desktop into sleep mode when you go for lunch! • Avoid public WiFi for company access; use mobile data or a hotspot.• Choose unique passwords for all of your platforms and apps, and use a password manager to keep track. 30 31INSIDE Magazine #123INSIDE Magazine #123

Page 31

Page 32

33INSIDE Magazine #11932INSIDE Magazine #123NEWSFLASHES T. Dossogne, C. Jacquet & F. De NardisGeert Aelbrecht named CHRO of the YearWe are proud to announce that Geert Aelbrecht, our Chief People Ocer and Group Sustainability & ESG Ocer, has been awarded "CHRO of the Year" at the HR Excellence Awards 2025. This recognition honours Geert’s inspiring leadership and the strength of our People strategy across the Group.Behind this achievement stands our entire People teams, driving talent development, wellbeing, and performance to help every colleague thrive. Congratulations to Geert and all involved in this remarkable recognition!PERSONALIAGlobal Safety Time Out 2025: reinforcing safety as a shared responsibilityOn April 28th, BESIX Group’s Global Safety Time Out (GSTO) brought together over 22,000 participants across more than 215 events worldwide. From Belgium to the Middle East, Africa and Australia, teams paused to reﬂect, engage, and recommit to our shared value: "Care is at our core."This year’s GSTO focused on Life Saving Rules, executive safety commitments, and psychological trauma awareness. Across regions, creativity and leadership stood out. On Saudi Arabia’s Aramco Stadium project, Subcontractor HSE Summits introduced safety league tables and targeted action plans, driving accountability. In Dubai (UAE), colleagues blended training with cultural activities; the Tanga jetty (Tanzania) project team organised a falling object demonstration while podcast testimonials addressed the emotional impact. In Europe and Australia, executive visibility reinforced top-down commitment.In Belgium and Luxembourg, over 1,100 participants joined 30 toolbox sessions. Management safety walks and team-building games made safety both serious and engaging. Feedback highlighted stronger team spirit and a renewed sense of purpose.Looking ahead: sustaining momentum The GSTO 2025 laid a strong foundation for continuous improvement. Teams worldwide are now implementing shared safety vigilance, enhanced brieﬁngs, and BE SAFE Ambassador programmes. Together, we are committed to turning lessons into action, ensuring 2025 is a year of measurable progress toward zero incidents. Let’s carry this momentum forward!Contributing to a better world, one game at a timeAt BESIX, we are proudly supporting the United Nations Sustainable Development Goals (SDGs) since 2017. As an international construction group, we recognise our responsibility—and our potential—to contribute to a better world.To raise awareness and foster engagement around these critical goals, we created a ‘Serious Game’ —a unique and interactive experience designed to explore sustainability challenges and opportunities in our industry.What is it about?The game oers an engaging, collaborative way to dive into the SDGs, especially in the context of construction. It has been played in two contexts so far: during BESIX Young Community events, and during the BESIX Young Professional Days.More than 100 participants have already taken part, working together, learning, and developing concrete ideas for positive change. The game focuses on four essential SDGs:• SDG 8: Decent Work and Economic Growth• SDG 11: Sustainable Cities and Communities• SDG 13: Climate Action• SDG 16: Peace, Justice and Strong InstitutionsIt is an inspiring, fun, and thought-provoking journey that deepens understanding of global challenges, and how each of us can make a dierence.Want to experience the SDGs in a playful and impactful way?The game is also available as a team building activity, for a minimum of 20 participants. Simply contact our ESG team at ESG@besix.com – they will be happy to guide you through the experience!BESIX Group’s Activity & ESG Report 2024 now available!The Activity & ESG Report is here — bringing together the Group’s ﬁnancial performance, sustainability commitments, strategy, and ﬂagship projects, all in one practical and visually appealing publication.Available only in English, the report can be explored online (annualreport.besix.com) or as a PDF via the BESIX Group website (www.besix.com/en/about/publications/activity-reports).We encourage you to share the Activity Report – as broadly as possible – with your clients and business relations, as it is a great way to give them insight into what BESIX is about.We welcome your feedback via a short survey available here:Your opinion will allow us to further shape the report to your needs.From cranes to crypts: BESIX helps unearth ancient secretsIn the limestone hills of Bersha, Egypt, BESIX recently stepped o the beaten path—and into history. Partnering with KU Leuven and the Netherlands-Flemish Institute in Cairo (NVIC), our team lent its engineering know-how to an extraordinary archaeological mission: unearthing 4,000-year-old tombs that have long resisted exploration.The tombs of Dayr al-Barsha, the burial grounds of powerful Middle Kingdom (c.2050 BC-c.1750 BC) governors, lie deep within rugged and treacherous terrain. Archaeologists hit a standstill at the tomb of Governor Nehri II (who lived around 1900 BC), as they were unable to lift massive stones blocking access. That’s when BESIX and local partner Orascom rose to the challenge.Our solution? A custom-built gantry with a winch, powerful enough to hoist multi-tonne blocks, yet light enough to be carried by hand to the remote hilltop. Early April, the new system helped revive the dig, drawing praise during a site visit with the Belgian and Dutch ambassadors. Thanks to a blend of modern ingenuity and timeless curiosity, history is once again being revealed, one stone at a time.Want to learn more? Visit www.arts.kuleuven.be/dayr-al-barshaACTIVITY & ESG REPORT 2024You can access the ‘Personalia’ online via the QR codes:Staff movementsYears of serviceNew colleaguesTransfersRetired colleagues

Page 33

Page 34

EUROPEMIDDLE EASTAUSTRALIAViaduct over railway line and Brussels Ring RoadZaventem, BelgiumConstruction of two steel bridges (one over the Ring Road and one over the railway), and one concrete bridge. The approach ramps will be constructed in reinforced soil and fitted with masonry walls.ENGINEERING & BUILD: BESIX, STADSBADER AND VICTOR BUYCK STEEL CONSTRUCTIONAdministrative centreSpa, BelgiumConstruction of a new administrative centre for the municipality and the Public Centre for Social Welfare.BUILD: WUSTSchool campus extensionCapellen, Grand Duchy of LuxembourgThe campus will become a modern educational centre, ready to welcome the pupils of today and tomorrow in the best possible conditions.BUILD: LUXTPPhilharmonie extensionLuxembourg, Grand Duchy of LuxembourgMajor transformation with an ambitious extension planned for 2027, which will add 2,055 m² spread over two levels. It will include a multi-purpose hall for workshops, conferences, productions for young audiences and community projects. There will also be a new restaurant with a terrace on the ground floor.BUILD: LUXTP AND FÉLIX GIORGETTIAG VespaAntwerp, BelgiumRenewal and extension of the contract for the architectural and technical maintenance of four lots, representing more than 100 public buildings which are part of the City of Antwerp's urban patrimony. Three additional lots were awarded, including full facility management.MAINTENANCE & FACILITY MANAGEMENT: COMTIS SERVICESSohar LNG JettySohar, OmanFast-track contract that includes the construction of an LNG jetty, comprehensive shore protection, and an advanced drainage network. DESIGN & BUILD: BESIXWoolworths chilled and fresh distribution centreSydney, AustraliaCutting-edge, temperature-controlled multi-storey warehouse and distribution facility that will handle over 6,000 tonnes of fruit and vegetables every day. It is designed to boost the efficiency and capacity of retailer Woolworths' supply chain.DESIGN & BUILD: BESIX WATPACREGIONAL & SPECIALISED ENTITIESElia AubangeAubange, BelgiumExpansion work on a high-voltage substation: extensive earthworks to prepare the platform for the substation, installation of 84 foundation plinths, and road and landscaping work.BUILD: SOCOGETRAInfrabel Viaduct of ArbreAth, BelgiumRepairs to the lateral waterproofing of the viaduct and complete renovation of the anchoring heads for the post-tensioned cables.BUILD: SOCOGETRAWattlandMechelen, BelgiumConstruction of a low-energy residential project with 197 homes on De Dijle. These homes will be heated and cooled via geothermal energy, solar panels and heat pumps.BUILD: VANHOUT / ESCO: COMTIS ENERGYMain new contractsCité PaqueGrâce-Hollogne, BelgiumEnergy renovation of 87 homes and a nursery.BUILD: WUSTAcademies of BincheBinche, BelgiumConstruction of a building on the site of the Academies, conversion of the Château Paternotte and demolition of the old infrastructure.BUILD: WUST AND GALÈRE©Ney & PartnersConstruction campus 2.0Diepenbeek, BelgiumConstruction of an office and research building for POM Limburg and the province of Limburg. The entire building was designed in BIM and will be completely modular and circular.DESIGN, BUILD & MAINTENANCE: VANHOUT AND DETHIER / ESCO: COMTIS ENERGYReconstruction of StrijderslaanHamme, BelgiumRoad and drainage works in an area with PFAS contamination. The roadway will then be completely renewed and reconstructed. BESIX Unitec will treat the drainage water.BUILD: BESIX INFRA AND BESIX UNITECWaanrode sewerage renovationWaanrode (Kortenaken), BelgiumRenewal of the road and construction of a separate sewerage system on behalf of Aquafin.BUILD: BESIX INFRA34 35INSIDE Magazine #123INSIDE Magazine #123NEW CONTRACTS T. Dossogne

Page 35

INSIDE #123

Page 1

Page 2