#1COVED-19 SIKA PERFORMS WELL IN DEMANDING MARKETS: SLIGHT GROWTH IN LOCAL CURRENCIES IN FIRST QUARTER SIKA INVESTOR PRESENTATION MAY 2023 Jika Ⓡ BUILDING TRUST#21. SALES FIRST QUARTER 2023 BUILDING TRUST Jika Ⓡ#3HIGHLIGHTS Q1 2023 PERFORMING WELL IN DEMANDING MARKETS Sales increase in local currencies of +1.2% Sales Q1 of CHF 2,325.9 million (-3.0% in CHF) Strong growth of 15.2% in Global Business (previous year: 10.4%) ■ Negative currency effect of -4.2% Outlook for fiscal 2023 confirmed • Sales increase in local currencies by 6-8% Over-proportional increase in EBIT (excluding MBCC acquisition) Confirmation of 2023 strategic targets 3 BUILDING TRUST Jika ®#4HIGHLIGHTS Q1 2023 SLIGHT GROWTH IN LOCAL CURRENCIES IN FIRST QUARTER - 4.7% Q1 2022 Q1 2023 +1.2% (in CHF billion, growth in LC) 4 + 5.1% 0.70 Americas 0.93 EMEA + 2.6% + 15.2% 0.48 0.22 2.33 Asia/Pacific Global Business Group Jika BUILDING TRUST#52. HIGHLIGHTS 2022 BUILDING TRUST Jika Ⓡ#6HIGHLIGHTS 2022 RECORD RESULTS FOR SALES, EBIT AND PROFIT Record results 2022 Sales of CHF 10,491.8 million (+13.4%), increase in local currencies +15.8% CHF 1,579.7 million EBIT (+13.5%) EBIT margin at 15.1% (2021: 15.0%) CHF 1,162.5 million net profit (+10.9%) Key investments 2 acquisitions completed 5 new/expanded factories. Innovation and sustainability 104 new patents 168 new inventions Sales in CHF 10.49 billion EBIT in CHF 1.58 billion -6.9% reduction of CO2eq emissions per ton sold (scope 1 and 2) 6 BUILDING TRUST Jika ®#7SIKA EXCEEDS SALES OF CHF 10 BILLION FOR THE FIRST TIME SALES GROWTH OF 15.8% IN LOCAL CURRENCIES + 8.3% 7 + 27.5% 3.19 Americas 2021 2022 (in CHF billion, growth in LC) 4.14 EMEA + 14.8% 2.34 Asia/Pacific + 22.2% + 15.8% 10.49 0.81 Global Business Group BUILDING TRUST Jika#8HIGHLIGHTS 2022 STRONG PROGRESS IN SUSTAINABLE PERFORMANCE 62.7% of electricity purchased -6.9% from renewable sources reduction of CO2eq emissions per ton sold (scope 1 and 2) 8 -3.3% waste per ton sold 53,666 direct beneficiaries of the Community Engagement program -23.8% -6.1% Lost Time Accidents per 1,000 FTES reduction in water consumed per ton sold BUILDING TRUST Jika#9STRONG DEVELOPMENT OVER THE YEARS WITH OVER-PROPORTIONAL PROFITABILITY GROWTH Net Sales 10 10 8 00 9 4 2017 +13.6% +16.3% +3.4% +17.1% EBIT 1.8 +15.8% 1.6 1.4 14.4% 1.2 13.0% 1.0 13.4% 14.3% 0.8 15.0% 15.1% 0.6 2018 2019 2020 2021 2022 2017 2018 2019 2020 2021 2022 (in CHF bn, growth in LC) 9 (in CHF bn, in % of net sales) Jika ® BUILDING TRUST#103. EXECUTION AND BENEFITS OF MEGATRENDS BUILDING TRUST Jika Ⓡ#11STRONG EXECUTION AND BENEFITS OF MEGATRENDS SIKA STRONGLY POSITIONED IN 2022 AND BEYOND 11 Urbanization Climate Change Digitalization Demographic Change Automation 10Y CAGR: 2012-2022 +10.8% Sika's average annual growth rate in local currencies over the past 10 years Emerging market growth Acquisitions Market penetration Structural growth Market growth Years BUILDING TRUST Jika#12URBANIZATION – INFRASTRUCTURE PROGRAMS - SECURE WATER SUPPLY FOR THE MEDELLÍN REGION, COLOMBIA Project description The region's largest water treatment facility is being modernized ■ Guaranteed and secured supply of drinking water ■The facility will supply 60% of the Aburrá Valley's drinking water ■ Secure supply to a total of more than three million inhabitants of Medellín and the surrounding communities 12 Sika solutions Sika Quick®-2500 Sika TopⓇ ArmatecⓇ SikadurⓇ-32 SikagardⓇ-62 Jika ® BUILDING TRUST#13· URBANIZATION - STRONG INFRASTRUCTURE PROGRAMS IN USA EXTENSIVE INFRASTRUCTURE PROGRAMS STIMULATE ECONOMIES TB Varibble Density Highway construction in Virginia The largest infrastructure highway project ever in Virginia 4 bridges are being extended and 2 new underwater tunnels being built from scratch ■ Sika providing all the admixtures Sikas waterproofing membranes and sealing strips protects the tunnel against water leakage Los Angeles International Airport modernization ■Modernization and extension of the LAX international airport ■ The largest public works program in the history of LA ■ Sika Solutions for roofing and flooring 13 BUILDING TRUST Jika ®#14URBANIZATION - REPAIR AND REFURBISHMENT THE QUAY QUARTER TOWER (QQT) IN SYDNEY NEW RETAINED STRUCTURE CORE Project description The QQT has been "upcycled" from the original AMP Centre skyscraper built in 1976 ■ QQT opened at the start of 2022, is 206 meters high and has 59 floors ■ 95% of the existing core preserved ■ CHF 85 million in building costs saved ■ 12,000 tons of CO2 emissions saved Significant time savings during construction 14 >65% of mature market buildings are older than 30 years Sika solutions ■ carbon fiber reinforcing systems ■fire rated joint sealants ■floor leveling solutions waterproofing systems ■ concrete repair mortars ■ concrete admixtures BUILDING TRUST Jika ®#15CLIMATE CHANGE - STRONG SUSTAINABILITY DEVELOPMENT SIKA'S NET ZERO ROADMAP – DRIVING THE TRANSFORMATION - 2050 NET ZERO SIKA'S GROWTH 2022 INVESTING > > > > > 2032 ACCELERATING -25% PATH TO NET ZERO EMISSIONS -90% OUR KEY LEVERS Education and capacity building to improve material efficiency and circularity Accelerated use of alternative low carbon supplies Partnerships with key suppliers who support Sika's path to net zero Continued focus on operational efficiencies Development of new innovative solutions for construction and industry 15 BUILDING TRUST Jika ®#16CLIMATE CHANGE - STRONG SUSTAINABILITY DEVELOPMENT COOPERATION FOR CLINKER REDUCTION AND CIRCULAR ECONOMY CO₂ kg/m³ 406 2022 Shaft refurbishment concrete -93% Project description Collaboration with the world's largest iron ore mining company, the Swedish firm LKAB. Thanks to Sika admixtures, a new "Zero Cement" concrete has been developed. Around 100,000 cubic meter of this concrete will be used for the renovation of 38 pit shafts at LKAB's Kiruna mine in the north of Sweden. The CO2 emissions released in the production of this shaft renovation concrete in 2023 will be reduced by 93% compared to 2022. 16 27 FC 2023 Jika BUILDING TRUST ®#17CLIMATE CHANGE - STRONG SUSTAINABILITY DEVELOPMENT FORMULATION – IN-DEPTH RESEARCH INTO NEW SOLUTIONS WASTE AS AN OPPORTUNITY GLOBAL AND LOCAL R&D TESTING AND APPROVAL - == WASTE USED AS SCM ASH OF CASHEW NUT SHELLS ■ Sika is looking to partially replace cement in all mortar categories over the next few years ■The goal is to increase the substitution rate - which averaged 14% in 2022 - to 50% by 2025 High-quality products include the two mortars SikaGroutⓇ-800 and 3320 as well as SikagardⓇ-5500, the first concrete protective coating based on renewable feedstocks ■ All these products have a 30% to 40% reduced CO2 footprint with highest technical performance SCM: Supplementary Cementitious Materials 17 CO₂ REDUCED SOLUTIONS BUILDING TRUST Jika ®#18GROWTH DRIVER DIGITALIZATION AND AUTOMATION COMPLEX REINFORCED CONCRETE STRUCTURES WITH ROBOTS ■ Sika joined forces with formwork and scaffolding application specialist PERI to invest in the Swiss start-up MESH AG, a spin-off of ETH Zurich ■ MESH AG combines 3D technology and robotics ■ Robots produce so-called reinforcement cages for the desired structure precisely and rapidly ■ Sika admixtures ensure that the concrete can be embedded in the steel cages with standard pumps without spilling out ■ MESH technology makes it possible to produce complex geometries cost- efficiently 18 Jika ® BUILDING TRUST#19GROWTH DRIVER DIGITALIZATION AND AUTOMATION DIGITALIZATION - CONSTRUCTION IS ON THE MOVE By moving software and technology out of offices and onto job sites, our industry has greater potential to add value and complete construction projects on-time and on-budget. Situation 10-15 years ago ■ No internet access ■ Desktop computers ▪ Long implementation times ■ Limited value creation Situation today ■ Internet available ■ Smart mobile devices ■ Web-based technologies for higher flexibility Future situation ■ Augmented reality/virtual ■ Artificial intelligence and machine learning ■ Drones and 3D scanners 19 BUILDING TRUST Jika ®#2020 GROWTH DRIVER DIGITALIZATION AND AUTOMATION HELPING CUSTOMERS TO INCREASE QUALITY AND EFFICIENCY RAW MATERIAL ANALYSIS SANDIS MADE FOR BUILDING EM 44 < MIX DESIGN Welcome Page BULING TRUST ' Analyze properties of sand using Sand Analyzer app Provide recommendations to customers on how to improve concrete mix design TRANSIT & DELIVERY Suite of sensors measure properties of wet concrete during delivery $952 BUILDING TRUST Jika#21Countries with Sika presence Factories Philippines Cambodia EMERGING MARKET GROWTH - SOUTHEAST ASIA MARKETS GROWING ABOVE-AVERAGE ■ Strong Growth in construction sector: expected investment volume in 2026 is over CHF 500 billion Infrastructure investments by 2026 increase by 27.5% in Southeast Asia ■ Strong local presence: Sika has 8 national subsidiaries and 20 production plants in Southeast Asia with sales of CHF 400 million ■ Sika's growth strategy in Southeast Asia includes large construction projects and greater market penetration through the expansion of the distribution business Myanmar Vietnam Thailand Malaysia Singapore 21 21 Indonesia BUILDING TRUST Jika#22EMERGING MARKET GROWTH - SOUTHEAST ASIA MAJOR INFRASTRUCTURE PROJECT: METRO EXPANSION BANGKOK Project description Connection between the eastern part of Bangkok with the city center Sika's expertise and leading products for the most rigorous tunneling requirements The MRT Orange Line will play a key role in Bangkok's urban transport system Successful cross-selling with more than 80 Sika solutions for tunnels and stations such as: ■ SikaⓇ SeparolⓇ W-317 E ■ LANKO 361 CURE ■ SikaⓇ Stabilizer-1118 TBM TH ■ SikaGroutⓇ and Sika MonoTopⓇ range ■ SikaⓇ Injection Sika Hyflex®-160 Construction SikacrylⓇ-620 Fire and Sikasil-670 Fire ■ Sikalastic®-632 R 22 BUILDING TRUST Jika ®#23EMERGING MARKET GROWTH - SOUTHEAST ASIA INVESTMENTS IN SUSTAINABLE FLAGSHIP PROJECT: THE FORESTIAS Project description ■The Forestias is Thailand largest new build project ■ The sustainable project will create an urban district of the future on the outskirts of Bangkok ■In August 2022, The Forestias received the "Green Honorary Award 2022" for its sustainability from Bangkok's Kasetsart University Successful cross-selling with almost 50 Sika Products are used in 13 subprojects such as: ■ Sika TopⓇ-107 Seal TH (LEED) = (LEED), and SikafloorⓇ-21 ■ Sikafloor®-161 HC (LEED) ■ SikafloorⓇ-263 SL HC ■ PurCemⓇ LP (LEED) ■ SikalasticⓇ-632 R 23 BUILDING TRUST Jika ®#24EMERGING MARKET GROWTH - SOUTHEAST ASIA BOOMING DISTRIBUTION BUSINESS IN INDONESIA FLO DECK GRA DEGRISE DECK ST 310 Mote 107 219 107 A10210 Plus A DECK S Stator Sika Top 107 Seal ID Sika Top 17 Selio <--20 Kg 20 Kg Star 107 Seal ID SilaTop Ha 107 Seal 10 SoCeram 180 GA TF CRANITE TILE FIX NEW 25 Kg Strong growth potential ■ Sika is rolling out its distribution model to other Asian countries, with a special focus on Indonesia ■ With a population of 274 million, the country is viewed as a key growth market In 2022 alone, the distribution business grew by 18% Within two years points of sales doubled from under 10,000 to more than 22,000 ■ The success of the strategy based on market penetration, expanding Sika's product portfolio, and increasing brand awareness 24 Jika BUILDING TRUST#25OUR PEOPLE, OUR VALUES PERFORMING BEYOND THE EXPECTED ALL TOGETHER OUR KEY DRIVERS ☐ Courage for Innovation ■ Customer First ▪ Empowerment and Respect Manage for Results Sustainability and Integrity 25 BUILDING TRUST Jika#264. SUCCESSFUL CLOSING OF MBCC ACQUISITION BUILDING TRUST Jika Ⓡ#2727 SUCCESSFUL CLOSING OF MBCC ACQUISITION ON MAY 2 MBCC IS COMPLEMENTARY IN MANY WAYS Jika + MBCC GROUP BUILDING TRUST PCI Fiz Bau-Profis Solutions Channel Geography Supply Chain BUILDING TRUST Jika ®#28SUCCESSFUL CLOSING OF MBCC ACQUISITION SIKA TO REACH SALES IN EXCESS OF CHF 12 BILLION IN 2023 28 Sika acquires MBCC business generating CHF 2.1 billion net sales in 2022 Annual synergies expected in the range of CHF 160-180 million by 2026 Integration process well prepared and to start on May 2 The combined innovation power of Sika and MBCC will accelerate the sustainable transformation of the whole construction industry Sika set to reach sales in excess of CHF 12 billion in 2023 *Based on FY 2022 figures Ra Today ig Day From MBCC Group, CHF 2.1 billion* to be integrated in Sika 0.9 bn Sold to Cinven 2.1 bn Acquired by Sika BUILDING TRUST Jika#295. OUTLOOK BUILDING TRUST Jika Ⓡ#30OUTLOOK 2023 CONTINUATION OF SUCCESSFUL GROWTH STRATEGY For 2023 Sika expects sales to increase by 6-8% in local currencies* ■ Over-proportional EBIT increase expected for the year* ■ Sika to reach sales in excess of CHF 12 billion in 2023 ■ Confirmation of 2023 strategic targets for sustainable, profitable growth 30 * excluding the impact of the MBCC acquisition Expected sales increase in LC* 6-8% BUILDING TRUST Jika ®#31THANK YOU FOR YOUR ATTENTION BUILDING TRUST Jika Ⓡ#32FORWARD-LOOKING STATEMENT This presentation contains certain forward-looking statements. These forward-looking statements may be identified by words such as 'expects', 'believes', 'estimates', 'anticipates', 'projects', 'intends', 'should', 'seeks', 'future' or similar expressions or by discussion of, among other things, strategy, goals, plans or intentions. Various factors may cause actual results to differ materially in the future from those reflected in forward-looking statements contained in this presentation, among others: Fluctuations in currency exchange rates and general financial market conditions Interruptions in production Legislative and regulatory developments and economic conditions Delay or inability in obtaining regulatory approvals or bringing products to market Pricing and product initiatives of competitors Uncertainties in the discovery, development or marketing of new products or new uses of existing products, including without limitation negative results of research projects, unexpected side-effects of pipeline or marketed products Increased government pricing pressures Loss of inability to obtain adequate protection for intellectual property rights Litigation Loss of key executives or other employees Adverse publicity and news coverage Any statements regarding earnings per share growth are not a profit forecast and should not be interpreted to mean that Sika's earnings or earnings per share for this year or any subsequent period will necessarily match or exceed the historical published earnings or earnings per share of Sika. For marketed products discussed in this presentation, please see information on our website: www.sika.com All mentioned trademarks are legally protected. 32 Jika BUILDING TRUST