Investor Presentaiton

CTI: Fragmented industry with resilient growth China has become one of the world's fastest-growing TIC markets driven by increasing demand for regulation of new materials, products, hi-tech equipment, and systems and processes across industries Revenue per capita RMB 900,000 Net profit per capita RMB 120,000 800,000 100,000 700,000 600,000 80,000 500,000 60,000 400,000 300,000 40,000 200,000 20,000 100,000 0 0 CTI Guangzhou GRG 2016 2017 2018 2019 2020 2021 Pony Testing CTC Suzhou Sushi Testing CTI Guangzhou GRG Pony Testing CTC Suzhou Sushi Testing 2016 2017 2018 2019 2020 2021 TIC industry's CAPEX vs. revenue Operating cash flow vs. net profit 45% 4.0 40% 3.5 35% 3.0 30% 2.5 25% 2.0 20% 15% 1.5 10% 1.0 5% 0.5 0% 0.0 CTI Guangzhou GRG Pony Testing CTC Suzhou Sushi CTI Guangzhou GRG Pony Testing Testing 2016 2017 2018 2019 2020 2021 2016 2017 2018 2019 2020 2021 Source: Company data, May 2023 CTC Suzhou Sushi Testing 28

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