CTS Corporation 2nd Quarter2022 Earnings Call July 26, 2022

Forward-Looking Statements This document contains statements that are, or may be deemed to be, forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, but are not limited to, any financial or other guidance, statements that reflect our current expectations concerning future results and events, and any other statements that are not based solely on historical fact. Forward-looking statements are based on management’s expectations, certain assumptions and currently available information. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof and are based on various assumptions as to future events, the occurrence of which necessarily are subject to uncertainties. These forward-looking statements are made subject to certain risks, uncertainties and other factors, which could cause CTS’ actual results, performance or achievements to differ materially from those presented in the forward-looking statements. Examples of factors that may affect future operating results and financial condition include, but are not limited to: the ultimate impact of the COVID-19 pandemic on CTS’ business, results of operations or financial condition, including supply chain disruption; changes in the economy generally, including inflationary and/or recessionary conditions, and in respect to the business in which CTS operates; unanticipated issues in integrating acquisitions, including TEWA Temperature Sensors and Ferroperm Piezoceramics; the results of actions to reposition CTS’ business; rapid technological change; general market conditions in the transportation, as well as conditions in the industrial, aerospace and defense, and medical markets; reliance on key customers; unanticipated public health crises, natural disasters or other events; environmental compliance and remediation expenses; the ability to protect CTS’ intellectual property; pricing pressures and demand for CTS’ products; and risks associated with CTS’ international operations, including trade and tariff barriers, exchange rates and political and geopolitical risks (including, without limitation, the potential impact U.S./China relations and the conflict between Russia and Ukraine may have on our business, results of operations and financial condition). Many of these, and other risks and uncertainties, are discussed in further detail in Item 1A. of CTS’ most recent Annual Report on Form 10-K and other filings made with the SEC. CTS undertakes no obligation to publicly update CTS’ forward-looking statements to reflect new information or events or circumstances that arise after the date hereof, including market or industry changes. Non-GAAP Financial Measures From time to time, CTS may use non-GAAP financial measures in discussing CTS’ business. These measures are intended to supplement, not replace, CTS’ presentation of its financial results in accordance with U.S. GAAP. CTS’ management believes that non-GAAP financial measures can be useful to investors in analyzing CTS’ financial performance and results of operations over time. CTS recommends that investors consider both actual and adjusted measures in evaluating the performance of CTS with peer companies. The information included in this press release includes the non-GAAP financial measures of adjusted gross margin, adjusted operating earnings, adjusted EBITDA, adjusted net earnings, adjusted diluted earnings per share, debt to capitalization ratio, controllable working capital ratio, and free cash flow. Many of these non-GAAP financial measures exclude the effect of certain expenses and income not related directly to the underlying performance of CTS’ fundamental business operations. CTS believes that adjusted gross margins, adjusted operating earnings, adjusted EBITDA, adjusted net earnings and, adjusted diluted earnings per share provide useful information to investors regarding its operational performance because they enhance an investor’s overall understanding of CTS’ core financial performance and facilitate comparisons to historical results of operations, by excluding items that are not related directly to the underlying performance of CTS’ fundamental business operations or were not part of CTS’ business operations during a comparable period. CTS believes that debt to capitalization ratio is a measurement of financial leverage and provides an insight into the financial structure of CTS and its financial strength. CTS believes the controllable working capital ratio provides an objective measure of the efficiency with which CTS manages its short-term capital needs.  CTS believes that free cash flow is a useful measure of its ability to generate cash. CTS believes that these non-GAAP financial measures are commonly used by financial analysts and others in the industries in which CTS operates, and thus further provide useful information to investors. Note that CTS’ definitions of these non-GAAP financial measures may differ from those terms as defined or used by other companies. CTS does not provide reconciliations of forward-looking non-GAAP financial measures, such as estimated adjusted diluted earnings per share, to the most comparable GAAP financial measures on a forward-looking basis because CTS is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. This is due to the inherent difficulty of forecasting the timing and amount of certain items, such as, but not limited to, restructuring costs, environmental remediation costs, acquisition related costs, foreign exchange rates and other non-routine costs. Each of such adjustments has not yet occurred, are out of CTS' control and/or cannot be reasonably predicted. For the same reasons, CTS is unable to address the probable significance of the unavailable information.

$145M Sales +11.9%   Second Quarter (68) bps 36.1% Adj. Gross Margin Organic growth +8.7% Non-transportation revenues +21.1%, organic 14.1% Transportation revenues +4.4% Tewa acquisition added $4.1m in sales in 2Q New business wins $173M $16.1M operating cash flow, $12.5M free cash flow Solid operational performance strengthening financial position $0.62 Adj. diluted EPS +18% All comparisons vs. same period in prior year unless otherwise noted Q2 2022 – Executing on portfolio demand, diversification to achieve profitable growth

Capturing secular trends to expand into premium, growing markets Establishing leadership in non-transportation end markets Industrial Aerospace & Defense Medical +31% +37% +0.4% Revenue ($ Millions) Revenue ($ Millions) Revenue ($ Millions) Gaining in commercial sonar w/piezo products, industrial drones with RF products Strong demand for industrial appliances as consumers return to service industries Expansion in minimally invasive surgery and other applications; Ferroperm adds therapeutic application capability Continued growth in sonar, guided munitions and torpedo applications. Ferroperm adds Europe defense and aerospace capability

Strategic acquisitions fueling diversification – M&A as a catalyst Ferroperm complements existing CTS piezoceramic capabilities Single Crystal Technology 2016 2017 Tape Cast Technology Bulk Technology Pre 2016 2022 Medical Therapeutics Europe Defense Growing Piezoceramic Platform Current Enhancing Piezoceramic Technology and Geographic Reach Building a Strong Global Temperature Sensing Platform 2020 Medical Applications Industrial Applications 2019 Industrial + Medical Europe Expansion 2022 Growing Temperature Platform Current

>$1Bn expansion in Available Market with EV-related new products >95% Light Vehicle portfolio carries over to Electric Vehicles Chassis Height Sensor Accelerator Modules Brake Position Sensor Belt Tension Sensor Seat Track Position Sensor Seat Belt Buckle Switch Sensor Chassis Height Sensor Accelerator Modules Brake Position Sensor Belt Tension Sensor Seat Track Position Sensor Seat Belt Buckle Switch Sensor Traditional light vehicle key product Portfolio 2022: $2.4Bn Available Market (SAM) New products for Electrification >2030: $1Bn+ Light vehicle key products For BEV/HEV/PHEV and ICE 2030: $2.7Bn a + AC Motor Current Sensor AC Motor Position Sensor eBrake™ In Development CTS Portfolio 6

10 Electric Vehicle Platform wins in Q2 2022 – Total 17 in 2022 8% of 2022 light vehicle sales from EV/Hybrid platforms, Goal: >25% by 2025 17 YTD 2022 EV Wins

FY 2022 Guidance 2020-2022 CAGR 11.3% 3 2020-2022 CAGR 30.3% 3 $600 170% 112% Revenue ($ Millions) Free Cash Flow Conversion ($ Millions) Adj. Diluted EPS Returned to Shareholders ($ Millions) Note: 1 $570 $2.55 $2.40 68% 1 2 1 Guidance includes recent Ferroperm acquisition 2 Free cashflow conversion = FCF / Adjusted Net Earnings 3 CAGR based on mid point of 2022 guidance Non-transportation markets robust in 1H, monitoring 2H demand Light vehicle market – US 13-14.5M, China ~24-25M, Europe 15-16M units, forecasts lowered from earlier this year Robust commercial vehicle market through end of 2022 Monitoring additional risks from interest rates, supply challenges, inflationary pressures, COVID-19, geopolitical considerations Tax rate in the range of 20-23% excluding discrete items Key Outlook Assumptions

2nd Quarter 2022 Financial Results

Revenue up 11.9% vs. Q2 2021 and down 2% vs Q1 2022 Non-transportation sales up 21.1% vs Q2 2022, organic growth +14% Transportation sales up 4.4% vs Q2 2021 Adjusted EBITDA up 90 bps to 22.4% Continued margin pressure from supply challenges and cost increases, partially mitigated by continuous improvement projects and pricing Operating cash flow $16.1M, negative impact from foreign currency rates Highlights Net Income ($’Mil) $0.9 $20.2 $12.6 Diluted EPS $0.03 $0.63 $0.39 Adj. Diluted EPS $0.52 $0.67 $0.62 Adj. EBITDA Margin 21.5% 23.5% 22.4% Revenue ($ millions) Q2 2022 Financial Summary

Cash and Debt ($ Millions) Operating Cash Flow Q2 2022 – $7.7M YTD 2022 – $11.7M Returned to shareholders Q2 2022 – $12.5 YTD 2022 – $28.4 Free Cash Flow Strong Balance Sheet Solid Foundation for Strategic M&A Q2 2022 – $3.6M YTD 2022 – $7.0M Capital Expenditures Note: Cash and Debt balance as of June 30, 2022 Borrowed Total Facility ($ Millions) Consistent strong cash flow generation

Q & A

Appendix

Adjusted Diluted EPS Regulation G Schedules 2022 2021 2022 2022 2021 2021 2020 Diluted earnings (loss) per share 0.39 $ 0.03 $ 0.63 $ 1.02 $ 0.40 $ (1.30) $ 1.06 $ Tax affected adjustments to reported diluted earnings (loss) per share: Restructuring charges 0.02 0.01 0.01 0.03 0.01 0.06 0.04 Foreign currency loss (gain) 0.12 (0.03) (0.01) 0.11 0.01 0.10 (0.16) Non-cash pension expense - 0.51 - - 0.57 3.13 0.06 Environmental charges 0.02 - 0.01 0.03 0.01 0.05 0.07 Acquisition-related costs 0.05 - 0.02 0.07 - - 0.01 Inventory fair value step-up 0.02 - 0.01 0.03 - - - Discrete tax items - - - - (0.01) (0.11) 0.04 Adjusted diluted earnings per share 0.62 $ 0.52 $ 0.67 $ 1.29 $ 0.98 $ 1.93 $ 1.12 $ Full Year YTD Q2 Q1

($ Millions, except percentages) Adjusted EBITDA Regulation G Schedules 2022 2021 2022 Net earnings (loss) 12.6 $ 0.9 $ 20.2 $ Depreciation and amortization expense 7.0 6.7 6.7 Interest expense 0.6 0.5 0.5 Tax expense (benefit) 4.3 (1.5) 5.5 EBITDA 24.5 6.6 33.0 Adjustments to EBITDA: Restructuring charges 0.6 0.2 0.3 Environmental charges 0.9 0.2 0.5 Acquisition-related costs 2.0 - 0.5 Inventory fair value step up 0.5 - 0.6 Non-cash pension expense - 21.8 - Foreign currency loss (gain) 3.8 (0.9) (0.3) Total adjustments to EBITDA 7.9 21.2 1.7 Adjusted EBITDA 32.5 $ 27.9 $ 34.7 $ Net sales 145.0 $ 129.6 $ 147.7 $ Adjusted EBITDA as a % of net sales 22.4% 21.5% 23.5% Q1 Q2

($ Millions) Adjusted Gross Margin Regulation G Schedules 2022 2021 Gross margin 51.8 $ 47.7 $ Adjustment to reported gross margin: Inventory fair value step-up $0.5 - Adjusted gross margin 52.4 $ 47.7 $ Net sales 145.0 $ 129.6 $ Adjusted gross margin as a % of net sales 36.1% 36.8% Q2

($ Millions) Free Cash Flow Regulation G Schedules 2022 2022 2021 2020 Net cash provided by operating activities 16.1 $ 35.4 $ 86.1 $ 76.8 $ Capital expenditures (3.6) (7.0) (15.6) (14.9) Free cash flow 12.5 $ 28.4 $ 70.5 $ 61.9 $ Free Cash Flow as % of Adjusted Net Earnings 62.8% 68.3% 112.0% 169.8% Full Year Q2 YTD