Investor Presentaiton

Sinoseal: Play on localization in mechanical seals Sinoseal is a local SOE enterprise. Sichuan Chuanji Investment, a wholly owned subsidiary of Sichuan Machinery Research and Design Institute, is its actual controller, with 22.1% of its total shares. Upstream Downstream Metal Materials Rubber & Plastic Materials Plastic products Graphite Silicon Carbide Mechanical Seals & Auxiliary Systems Instrumentation Others Raw Material Suppliers Seals Industry Overall middle-to-high-end mechanical seal demand in China RMB bn Petrochemicals Coal Chemicals Power Metallurgy Total Source: Company data, Macquarie Research, May 2023 Compressor Petrochemicals Pump Coal Chemicals Stove Pipeline Transportation Others Equipment Manufacturers Electricity Metallurgy Pharmaceutics Food Aerospace, etc. End Users 2020 2025E CAGR 2.46 3.11 4.8% 0.57 0.77 6.2% 2.08 2.78 6.0% 0.60 0.60 0.0% 5.71 7.26 4.9% 23

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