Investor Presentaiton

Sinoseal: Play on localization in mechanical seals Original Equipment Sinoseal Aftermarket 100% 80% 59% 57% 53% 51% 62% 60% Revenue Mix 40% 20% 41% 43% 38% 47% 49% 0% 2017 2018 2019 2020 2021 OE Aftermarket 70% 70% Gross Profit 60% 60% 50% 50% Margin 40% 40% 30% 30% 20% 20% 10% 10% 0% 0% OE 2017 2018 2019 2020 2021 MITSUBISHI MOTORS Aftermarket 2017 2018 2019 2020 2021 沈鼓集团 HENGYI 恒逸集团 SULZER Customer Profile ShaanGu EBARA 陕鼓集团 SIEMENS SHAANGU GROUP Deep Blue DBP Source: Company data, Macquarie Research, May 2023 中国航天 Tianjin 三一集团 Elliott Machinery 中国石油中国海油 Chooc 国家管网 PIPECHINA J 706) WANHUA 国家能源集团 CHN ENERGY RONGSHENG Dr CGN 中国神华 CHINA SHENHUA 盛虹集团 SHENGHONG GROUP 88 中核集团 CNNC I 中国交建 1905 延长石油 YANCHANG PETROLEUM REG 中国中铁 25 25

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