ST Engineering Sustainability Report 2021

TOPIC / ACCOUNTING METRIC CODE PAGE / RESPONSE Energy Management (1) Total energy consumed, (2) percentage grid electricity, (3) percentage renewable RT-AE-130a.1 Sustainability Report 2021 pages 4 and 15 Hazardous Waste Management Amount of hazardous waste generated, percentage recycled RT-AE-150a.1 Sustainability Report 2021 pages 16 Number and aggregate quantity of reportable spills, quantity recovered RT-AE-150a.2 Nil. Data Security (1) Number of data breaches, (2) percentage involving confidential information RT-AE-230a.1 Sustainability Report 2021 page 53 Description of approach to identifying and addressing data security risks in (1) company operations and (2) products RT-AE-230a.2 Sustainability Report 2021 page 78 https://www.stengg.com/personal-data-policy Product Safety Number of recalls issued, total units recalled RT-AE-250a.1 Not disclosed due to confidentiality reasons Number of counterfeit parts detected, percentage avoided RT-AE-250a.2 Number of Airworthiness Directives received, total units affected RT-AE-250a.3 Total amount of monetary losses as a result of legal proceedings associated with product safety RT-AE-250a.4 Fuel Economy & Emissions in Use-phase Revenue from alternative energy-related products RT-AE-410a.1 Sustainability Report 2021 pages 23-26 Description of approach and discussion of strategy to address fuel economy and greenhouse gas (GHG) emissions of products RT-AE-410a.2 Sustainability Report 2021 pages 23-26 Materials Sourcing Description of the management of risks associated with the use of critical materials RT-AE-440a.1 Sustainability Report 2021 page 44 and 45 Business Ethics Total amount of monetary losses as a result of legal proceedings associated with incidents of corruption, bribery, and/or illicit international trade RT-AE-510a.1 Sustainability Report 2021 page 53 Revenue from countries ranked in the “E” or “F” Band of Transparency International’s Government Defence Anti-Corruption Index RT-AE-510a.2 We do not report revenue breakdown by individual country. Discussion of processes to manage business ethics risks throughout the value chain RT-AE-510a.3 Sustainability Report 2021 pages 69-72 and 77-79 Production by reportable segment RT-AE-000.A Annual Report 2021 page 03 Number of employees RT-AE-000.B Sustainability Report 2021 page 30 SUSTAINABILITY ACCOUNTING STANDARDS BOARD (SASB) STANDARDS → Aerospace & Defense | Version 2018-10 87 ST ENGINEERING SUSTAINABILITY REPORT 2021 OVERVIEW OUR SUSTAINABILITY APPROACH ENVIRONMENTAL SOCIAL GOVERNANCE AWARDS INDEX

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