Thermon : Conference Call Presentation Q1 2024

Cautionary Note Regarding Forward-looking Statements

This presentation includes forward-looking statements within the meaning of the U.S. federal securities laws in addition to historical information. These forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, without limitation, statements regarding our industry, business strategy, plans, goals and expectations concerning our market position, future operations, margins, profitability, capital expenditures, liquidity and capital resources and other financial and operating information such as the anticipated financial performance of our Powerblanket acquisition, our execution of our strategic initiatives, our ability to complete the disposition of our Russian subsidiary and anticipated timing and associated charges and our ability to achieve our financial performance targets for Fiscal 2026 and our Fiscal 2023 full-year guidance. When used herein, the words "anticipate," "assume," "believe," "budget," "continue," "contemplate," "could," "should" "estimate," "expect," "intend," "may," "plan," "possible," "potential," "predict," "project," "will," "would," "future," and similar terms and phrases are intended to identify forward-looking statements in this presentation. Forward-looking statements reflect our current expectations regarding future events, results or outcomes. These expectations may or may not be realized. Some of these expectations may be based upon assumptions, data or judgments that prove to be incorrect. In addition, our business and operations involve numerous risks and uncertainties, many of which are beyond our control, which could result in our expectations not being realized or otherwise materially affect our financial condition, results of operations and cash flows.

Actual events, results and outcomes may differ materially from our expectations due to a variety of factors. Although it is not possible to identify all of these factors, they include, among others, (i) the outbreak of a global pandemic, including the current pandemic (COVID-19 and its variants); (ii) general economic conditions and cyclicality in the markets we serve; (iii) future growth of energy, chemical processing and power generation capital investments; (iv) our ability to operate successfully in foreign countries; (v) our ability to successfully develop and improve our products and successfully implement new technologies; (vi) competition from various other sources providing similar heat tracing and process heating products and services, or alternative technologies, to customers; (vii) our ability to deliver existing orders within our backlog; (viii) our ability to bid and win new contracts; (ix) the imposition of certain operating and financial restrictions contained in our debt agreements; (x) our revenue mix; (xi) our ability to grow through strategic acquisitions; (xii) our ability to manage risk through insurance against potential liabilities (xiii) changes in relevant currency exchange rates; (xiv) tax liabilities and changes to tax policy; (xv) impairment of goodwill and other intangible assets; (xvi) our ability to attract and retain qualified management and employees, particularly in our overseas markets; (xvii) our ability to protect our trade secrets; (xviii) our ability to protect our intellectual property; (xix) our ability to protect data and thwart potential cyber-attacks; (xx) a material disruption at any of our manufacturing facilities; (xxi) our dependence on subcontractors and third-party suppliers; (xxii) our ability to profit on fixed-price contracts; (xxiii) the credit risk associated to our extension of credit to customers; (xxiv) our ability to achieve our operational initiatives; (xxv) unforeseen difficulties with expansions, relocations, or consolidations of existing facilities; (xxvi) potential liability related to our products as well as the delivery of products and services; (xxvii) our ability to comply with foreign anti-corruption laws; (xxviii) export control regulations or sanctions; (xxix) changes in government administrative policy; (xxx) the current geopolitical instability in Russia and Ukraine and related sanctions by the U.S. and Canadian governments and European Union; (xxxi) environmental and health and safety laws and regulations as well as environmental liabilities; and (xxxii) 2023 climate change and related regulation of greenhouse gases, and (xxxiii) those factors listed under Item 1A "Risk Factors" included in our Annual Report on Form 10-K for the fiscal year ended March 31, 2023 as filed with the Securities and Exchange Commission (the "SEC") on May 25, 2023 and in any subsequent Quarterly Reports on Form 10-Q, Current Reports on Form 8-K or other filings that we have filed or may file with the SEC. Any one of these factors or a combination of these factors could materially affect our future results of operations and could influence whether any forward-looking statements contained in this presentation ultimately prove to be accurate. Our forward-looking statements are not guarantees of future performance, and actual results and future performance may differ materially from those suggested in any forward-looking statements. We do not intend to update these statements unless we are required to do so under applicable securities laws.

NON-GAAP FINANCIAL MEASURES

Disclosure in this presentation of "Adjusted EPS," "Adjusted EBITDA," "Adjusted EBITDA margin," "Adjusted Net Income/(Loss)", "Free Cash Flow" "Organic Sales" and "Net Debt" which are "non-GAAP financial measures" as defined under the rules of the Securities and Exchange Commission (the "SEC"), are intended as supplemental measures of our financial performance that are not required by, or presented in accordance with, U.S. generally accepted accounting principles ("GAAP"). "Adjusted Net Income/(Loss)" and "Adjusted EPS" (or "Adjusted fully diluted EPS") represent net income/(loss) before the impact of restructuring and other charges/(income), amortization of intangible assets, tax expense for impact of foreign rate increases, loss on debt extinguishment, Acquisition related cost and any tax effect of such adjustments. "Adjusted EBITDA" represents net income before interest expense (net of interest income), income tax expense, depreciation and amortization expense, stock-based compensation expense, acquisition costs, costs associated with restructuring and other income/(charges), and costs associated with impairments and other charges. "Adjusted EBITDA margin" represents Adjusted EBITDA as a percentage of total revenue. "Free Cash Flow" represents cash provided by operating activities less cash used for the purchase of property, plant, and equipment, net of sales of rental equipment and proceeds from sales of land and buildings. "Organic Sales" represents revenue excluding the impact of the Company's May 31, 2022 acquisition of Powerblanket. "Net Debt" represents total outstanding debt less cash and cash equivalents on hand.

We believe these non-GAAP financial measures are meaningful to our investors to enhance their understanding of our financial performance and are frequently used by securities analysts, investors and other interested parties to compare our performance with the performance of other companies that report Adjusted EPS, Adjusted EBITDA, Adjusted EBITDA margin or Adjusted Net Income. Adjusted EPS, Adjusted EBITDA, Adjusted EBITDA margin, Adjusted Net Income, Organic Sales and Free Cash Flow should be considered in addition to, and not as substitutes for, revenue, income from operations, net income, net income per share and other measures of financial performance reported in accordance with GAAP. We provide Free Cash Flow as a measure of liquidity. Our calculation of Adjusted EPS, Adjusted EBITDA, Adjusted EBITDA margin, Adjusted Net Income and Free Cash Flow may not be comparable to similarly titled measures reported by other companies. For a description of how Adjusted EPS, Adjusted EBITDA, Adjusted EBITDA margin, Adjusted Net Income and Free Cash Flow are calculated and reconciliations to the corresponding GAAP measures, see the sections of this release titled "Reconciliation of Net Income to Adjusted EBITDA," "Reconciliation of Net Income to Adjusted Net Income and Adjusted EPS" and "Reconciliation of Cash Provided by Operating Activities to Free Cash Flow."

Q1 2024 Earnings | 2

Q1 2024 Earnings | 3

Thermon's Strategic Pillars

Delivering long-term shareholder value creation

Q1 2024 Earnings | 4

Thermon Solutions for the Energy Transition: Green & Blue Ammonia

Ammonia market estimated to grow at ~6% CAGR through 2032

1• TubeTrace Electrically Heated

Tubing Bundle

2• Ruffneck FX6 Explosion-Proof

Electric Air Heating

3• Ruffneck CX1 Explosion-

Proof Electric Air Heating

4• Genesis Network Controls

and Monitoring

2

"Source: Precedence Research, https://www.precedenceresearch.com/ammonia-market; Accessed 8/2/2023"