#1INVESTOR BRIEFING DURATE Sofitel Sydney Wentworth | 5 December 2023#2IMPORTANT NOTICE AND DISCLAIMER This presentation has been prepared by Duratec Limited (ACN 141 614 075) ("Duratec", "Duratec Group" and the "Company"). The information contained in this presentation is for information purposes only. The information contained in this presentation is not investment or financial product advice and is not intended to be used as the basis for making an investment decision. Please note that, in providing this presentation, Duratec has not considered the objectives, financial position or needs of any particular recipient. Duratec strongly suggests that investors consult a financial advisor prior to making an investment decision. No representation or warranty, express or implied, is made as to the fairness, accuracy, completeness or correctness of the information, opinions and conclusions contained in this presentation. To the maximum extent permitted by law, none of Duratec, its respective related bodies corporates, shareholders, directors, officers, employees, agents or advisors, nor any other person accepts any liability, including, without limitation, any liability for any loss arising from the use of information contained in this presentation or otherwise arising in connection with this presentation. This presentation may include "forward-looking statements". Such forward-looking statements are not guarantees of future performance and involve known and unknown risks, uncertainties and other factors, many of which are beyond the control of Duratec and its respective officers, employees, agents or associates, that may cause actual results to differ materially from those expressed or implied in such statement. Actual results, performance or achievements may vary materially from any projections and forward-looking statements and the assumptions on which those statements are based. Duratec assumes no obligation to update such information. Recipients of this presentation are strongly cautioned not to place undue reliance on forward-looking statements. This presentation is not, and does not constitute, an offer to sell or the solicitation, invitation or recommendation to purchase any securities and neither this presentation nor anything contained in it forms the basis of any contract or commitment. The distribution of the presentation in jurisdictions outside Australia may be restricted by law and you should observe any such restrictions. Any failure to comply with such restrictions may constitute a violation of applicable securities laws. This presentation does not constitute an offer to sell, or a solicitation of an offer to buy, any securities in the United States. The securities of Duratec have not been, and will not be, registered under the U.S. Securities Act of 1933, as amended (Securities Act] or the securities laws of any state or other jurisdiction of the United States, and may not be offered or sold in the United States except in compliance with the registration requirements of the Securities Act and any other applicable securities laws or pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act and any other applicable securities laws. DURATec Investor Briefing | 5 December 2023#3OVERVIEW OF PROCEEDINGS DURATec CHRIS OATES Managing Director Investor Briefing | 5 December 2023#4INTERACTIVE Q&A PLATFORM Today, we will be using Slido to collect questions, which will be addressed during the Q&A and intermittently throughout the session. You can now take out your phones, go to slido.com and type in the event code #Duratec0512. Please provide your company name when submitting questions. DURATec Investor Briefing | 5 December 2023#5ACKNOWLEDGEMENT OF COUNTRY PETER COX DDR Aboriginal Engagement and Mentoring Manager DURATec DDR Investor Briefing | 5 December 2023#6PANELLISTS & SPEAKERS Introduction PANELLISTS CHRIS OATES Managing Director MODERATOR DR LIAM HOLLOWAY MEND Managing Director TRISTAN REES National Defence Manager ASHLEY MUIRHEAD Chief Financial Officer PRESENTERS DDR OLLIE MCKEON General Manager - Eastern States DURATec GREG OATES National Building & Facade Manager NIGEL KROONSTUIVER WPF Managing Director SHANE KATAUSKAS DDR General Manager Investor Briefing | 5 December 2023#7BUSINESS HISTORY Strong Historical Growth Growth Over 14 Years 500 Annual Revenue (AUD millions) 400 300 200 Acquisition of Wilson's Pipe Fabrication. CAGR* 34% Establish Spatial Integration Division East Coast Presence Expanded. Duratec Listed on ASX 2% since FY22 Establish Defence Division DDR Australia Joint Venture Founded 100 Duratec Established Establish East Coast Presence Acquisition of MEND Consulting FY10 FY11 FY12 FY13 FY14 FY15 FY16 FY17 FY18 FY19 FY20 FY21 FY22 FY23 Compound Annual Growth Rate over 14 Years DURATec Investor Briefing | 5 December 2023#8MEND A Duratec Limited Company DR LIAM HOLLOWAY MEND Managing Director DURATec Investor Briefing | 5 December 2023#9MEND CONSULTING CREATING VALUE THROUGH • • • the early identification of opportunities, delivering innovation, demonstrating technical capability, • establishing lasting relationships, and · building trust. DURATee MEND A Duratec Limited Company Investor Briefing | 5 December 2023#10MEND CONSULTING MEND A Duratec Limited Company SPATIAL AND DIGITAL SERVICES • • MEND currently deliver best in class reality modelling services for key government, marine, mining and industrial asset owners. Our demonstrated experienced and trusted consultancy services means that major asset owners proactively seek our advice before going to market. TT SMITH DURATee Investor Briefing | 5 December 2023#11MEND CONSULTING BHP BERTH C AND D PROJECT THE FIRST OF MANY TO COME ✓ Annoview In 2020 the MEnD team delivered the first inspection and testing project of significant scale using the TM Anno View ™ Digital Defect Management workflow. MEND A Duratec Limited Company AMPEAK 2023 - Asset Management Innovation Award Capture Identify Classify Monitor DURATec Verify Scope Remediate 8206 MANAGEME enabli Investor Briefing | 5 December 2023#12MEND CONSULTING LABORATORY SERVICES TO INCREASE VISION • Specialised laboratory services for the testing, and forensic analysis of construction materials provides MEnD early visibility of opportunities for the parent company and provides them a PoD in tenders. The in-house capability also offers us more avenues to work for our key clients throughout the asset life cycle. DURATec MEND A Duratec Limited Company Investor Briefing | 5 December 2023#13MEND CONSULTING MAINTAINING OUR POINT OF DIFFERENCE • Working with our research and development partners MEnD has a long history of identifying gaps in the market and adopting new technology early to accelerate our growth. The opportunities to leverage computer vision, underwater reality modeling and the automation of current workflows present significant future value. DURATE DOLL DOLL MEND A Duratec Limited Company Investor Briefing | 5 December 2023#14WWPF A Duratec Limited Company NIGEL KROONSTUIVER WPF Managing Director DURATec Investor Briefing | 5 December 2023#15MINING & INDUSTRIAL AND ENERGY Mining and Industrial • Master service agreements continue to be the preferred mechanism for the major mining clients in Mining and Industrial space including Rio Tinto, BHP, Newmont, FMG and now Roy Hill. Growing focus on our ability to help assess the condition of structures and assist the client through to scoping phase. Clients with older assets (Rio/BHP/Newmont) have led the way with larger refurbishment programs - recognizing their maintenance debt issues. FMG, Roy Hill and some of the other newer asset owners have significant spends in an effort to avoid larger longer term structural issues. Duratec have reliable consistent teams of highly skilled and experienced personnel delivering high quality works which is recognised by our clients. • Delivery model with a combination of re-measurable scope works and hourly day works, plus a very rigorous inspection schedule creates a barrier to entry for competitors. Often one of two contractors for major works. DURATE DRILLER S HEHANTLE Investor Briefing | 5 December 2023#16MINING & INDUSTRIAL AND ENERGY Mining and Industrial • • The Goldfields division continues to be successful in the Master service agreements both shut and non shut down works. Introduction of new alternative clients (i.e., lithium and rare earths) to the traditional gold and nickel mines has created a long-term larger assets base for maintenance and refurbishments activities. We have also provided a number of smaller specialised construction type projects for these new mines/refineries. Recent expansion into the mid west has added further long-term opportunities to our ongoing MSA base work. Extending the relationships and offerings to QLD and increasing the focus on mining hubs like Gladstone to replicate the Goldfields MSA style works. DURATec Investor Briefing | 5 December 2023#17MINING & INDUSTRIAL AND ENERGY Mining and Industrial Highlights FY23 HIGHLIGHTS • • • Introduction to BHP through the Berth C&D +$50M Project. Expansion of the Rio Tinto SI Program to Pilbara East (Tom Price) and Ports (East Intercourse Island) $30M combined. Extended the offering of services at Newmont's Boddington Gold to include the Tank Refurbishment program. Growth of the skilled workforce in Mining and Industrial to + 450 personnel. DURATE Investor Briefing | 5 December 2023#18MINING & INDUSTRIAL AND ENERGY (WPF) Energy (WPF) • • • WPF brings strong in-house technical capabilities in fabrication and welding Highly experienced with specialty metals and weld procedures means they are often the first point of contact for difficult and bespoke projects Direct access to end users in the Oil & Gas Industry Offshore services through skilled and trained Offshore experienced personnel on Schedule of rates Invested into the offshore personnel supply to increase the ability to offer experienced personnel Confidence in the personnel and the delivery model has allowed us to seek to expend the same servicing offering into the Northern Territory DURATE WWPF A Duratec Limited Company Investor Briefing | 5 December 2023#19MINING & INDUSTRIAL AND ENERGY (WPF) Energy (WPF) Highlights FY23 HIGHLIGHTS . · • Successful acquisition and integration of WPF Contractor of the Year - Santos' 2023 Directors' EHSS Awards for supporting WA offshore activities Purchase Novarc Spool Welding Robot (increased quality control, safety, output and efficiencies) Increase in offshore and infield labour supply DURATee WPF AD Limited Coroane WWPF A Duratec Limited Company Investor Briefing | 5 December 2023#20GREG OATES National Building & Facade Manager DURATec Investor Briefing | 5 December 2023#21BUILDING & FACADE Specialists in early contracting with key clients KEY HIGHLIGHTS ● Substantial completion of our flagship • project Central Park - due May 2024 (ECI converted to main works) Our strategy is to remain discerning on opportunities and clients NOVEMBER HIGHLIGHTS • · Project (sole select) - on behalf of an NT Government entity - in negotiation Project (ECI) converted to main works in SA - awarded DURATec Investor Briefing | 5 December 2023#22BUILDING & FACADE Key differentiators ⚫ Duratec has a team of in-house experts • Full-scale fire spread modelling is one of our early entry points to clients End-to-end service: • Design-Draft-Procure-Install • This affords us full process control and delivers mutually beneficial outcomes • We can often price our works as we manage the design and the client (i.e. not hard dollar tendering) • No other contractor can do this on our scale • 3D modelling for procurement, tracking, QA and client updates DURATE Investor Briefing | 5 December 2023#23BUILDING & FACADE Future Focus . • • • Future Opportunity - as Australia's building infrastructure ages and poor-quality construction continues, we will be able to seize the opportunity on our terms Core offices in all major commercial cities give us the footprint our competitors cannot match When clients engage with us, they are coming from a need of genuine quality outcomes - we do not pursue the time and cost builder's model Continued focus on ECI model DURATec Investor Briefing | 5 December 2023#24TRISTAN REES National Defence Manager DURATec AUSTRALIA Investor Briefing | 5 December 2023#25DEFENCE UPDATE National Client supported by Duratec's National Delivery Model DEFENCE SERVICE OFFERING DEFENCE STRATEGIC REVIEW ALIGNMENT DURATE GROWTH STRATEGY Australian Government Investor Briefing | 5 December 2023 Defence#26DEFENCE UPDATE National Client supported by Duratec's National Delivery Model DEFENCE SERVICE OFFERING Specialised personnel Defence security accreditations • Tailored mature systems DURATec 208+ Defence Team Members ----- 300+ Defence Projects To Date Australian Government Investor Briefing | 5 December 2023 Defence#27DEFENCE UPDATE National Client supported by Duratec's National Delivery Model DEFENCE STRATEGIC REVIEW ALIGNMENT Fuels and ammunitions • Maritime Northern focus DURATec Australian Government Investor Briefing | 5 December 2023 Defence#28DEFENCE UPDATE National Client supported by Duratec's National Delivery Model Diversification GROWTH STRATEGY Expanding self-perform capabilities Leveraging footprint TAM in Defence sustainment FY24 spend is circa $17bn DURATE Australian Government Investor Briefing | 5 December 2023 Defence#29AAA DDR AUSTRALIA SHANE KATAUSKAS DDR General Manager DDR INDIGENCIANS DURATec Investor Briefing | 5 December 2023#30DDR AUSTRALIA Business Performance • • Challenging FY23 with reduction in Revenue to $32.3m Strong budget outlook for FY24, performance on track Work on hand $43.5M, identified pipeline >$300M Tendered works >$70M; increase to >$140M by Dec 2023 80,000,000 70,000,000 DDR Revenue FY18 to FY23 | Nationally DURATee 60,000,000 50,000,000 40,000,000 30,000,000 20,000,000 10,000,000 FY18 FY19 FY20 FY21 l FY22 FY23 DDR AUSTRALIA Investor Briefing | 5 December 2023#31DDR AUSTRALIA Growth and Diversification • Well placed for Defence sector growth • • Revenue sector diversification; key focus Strong financial position • New capabilities to deliver growth/stability DURATee DDR Hanes DDR AUSTRALIA OUND PPORT ASTEMS 403 055 208 Investor Briefing | 5 December 2023#32DDR AUSTRALIA Growth and Diversification DDR AUSTRALIA DOR • • • • Profile and reputation - growing Indigenous Procurement Policies and clients are maturing, increasing requirements DDR positioned to deliver existing and new services Employee numbers and capability growing >25% Aboriginal staff maintained for the last 3 years >45% Female staff mm DURATee Investor Briefing | 5 December 2023#33DURATec CHRIS OATES Managing Director Investor Briefing | 5 December 2023#34OUTLOOK Order Book and Pipeline Figure 1. Order Book Other 12.5% Building & Facades 16.9% Mining & Industrial 22.5% $411.2 million Energy 4.6% up from $383m at 18 November 2022 DURATec Defence 43.5% Mining & Industrial 8.7% Figure 2. Tender Figure 3. Pipeline Other 14.1% Building & Facades 25.7% Other 10.8% Mining & Industrial 8.7% Building & Facades 25.7% Energy 2.6% $1.02 billion Defence 48.9% up from $690m at 18 November 2022 Energy 5.9% Mining & Industrial Energy Other Defence Building & Facades $3.28 billion Defence 48.9% up from $1.93b at 18 November 2022 Investor Briefing | 5 December 2023#35OUTLOOK Total Addressable Market (TAM) - By Sector (Australia) Defence 1.3% of TAM $17.0b Mining & Industrial 0.2% 2 of TAM $34.7b Buildings & Facades A Energy 3 0.7%* of TAM $11.0b 0.6%* of TAM $5.0b Note 1: Duratec achieved FY23 Defence sector revenue of $229m. Defence TAM sourced from Department of Defence sustainment spend detailed in the Department of Defence 2020 Strategic Update Note 2: Duratec achieved FY23 Mining & Industrial sector revenue of $86.4m. Mining TAM sourced from Australia Bureau of Statistics Actual Expenditure by Type of Asset and Industry February 2020 and Industrial TAM sourced from IBIS World Industry Report. Infrastructure Maintenance Services in Australia February 2020 Note 3: Duratec achieved FY23 Buildings & Facades sector revenue of $78.4m. Buildings & Facades TAM sourced from Australian Facilities Management Services report and information published Note 4: Duratec achieved FY23 Energy and WPF sector revenue of $74.1m. Energy TAM sourced from BIS Oxford Economics, ABS (August 2023) DURATec Investor Briefing | 5 December 2023#36INTERACTIVE Q&A PLATFORM Today, we will be using Slido to collect questions, which will be addressed during the Q&A and intermittently throughout the session. You can now take out your phones, go to slido.com and type in the event code #Duratec0512. Please provide your company name when submitting questions. DURATec Investor Briefing | 5 December 2023#37QUESTIONS & ANSWERS MODERATOR OLLIE MCKEON General Manager - Eastern States DURATee CHRIS OATES Managing Director Access: slido.com Event code: #Duratec0512 PANELLISTS LIAM HOLLOWAY MEND Managing Director TRISTAN REES National Defence Manager ASHLEY MUIRHEAD Chief Financial Officer Investor Briefing | 5 December 2023#38DEMONSTRATION HUB & NETWORKING DURATec Investor Briefing | 5 December 2023