QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ORTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from______ to ______Commission file number:1-13888 GRAFTECH INTERNATIONAL LTD.(Exact name of registrant as specified in its charter) (State or other jurisdiction ofincorporation or organization) 982 Keynote CircleBrooklyn Heights,OH Registrant’s telephone number, including area code: (216)676-2000Securities registered pursuant to Section 12(b) of the Act: RegulationS-T(§232.405 of this chapter)during the preceding 12 months(or for such shorter period that the registrant was required to submit suchIndicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule12b-2 of the Exchange Act. Non-AcceleratedFiler☐SmallerReportingCompany☐If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revisedfinancial accounting standards provided pursuant to Section 13(a) of the Exchange Act.o Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).Yes☐No☒As of July18, 2025,258,151,443shares of common stock were outstanding. PART I. FINANCIAL INFORMATION:Item1. Financial Statements Condensed Consolidated Balance Sheets (unaudited)Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) Notes to the Condensed Consolidated Financial Statements (unaudited) Item2. Management’s Discussion and Analysis of Financial Condition and Results of OperationsItem3. Quantitative and Qualitative Disclosures About Market Risk Item4. Controls and Procedures PART II. OTHER INFORMATION:Item1. Legal ProceedingsItem 1A. Risk FactorsItem 5. Other InformationItem6. ExhibitsSIGNATUREPresentation of Financial, Market and Industry DataWe present our financial information on a consolidated basis. Unless otherwise noted, when we refer to dollars, we mean U.S.Certain market and industry data included in this Quarterly Report on Form 10-Q for the quarterly period ended June30, 2025(the “Report”) has been obtained from third-party sources that we believe to be reliable. Market estimates are calculated by usingindependent industry publications, government publications and third-party forecasts in conjunction with our assumptions about ourmarkets. We cannot guarantee the accuracy or completeness of this market and market share data and have not independently verifiedit. None of the sources has consented to the disclosure or use of data in this Report. While we are not aware of any misstatementsregarding any market, industry or similar data presented herein, such data involves risks and uncertainties and is subject to changebased on various factors, including those discussed under the headings “Cautionary Note Regarding Forward-Looking Statements” inthis Report and “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2024 (“Annual Report on Form10-K”) filed with the Securities and Exchange Commission (“SEC”) on February 14, 2025. Cautionary Note Regarding Forward-Looking Statements This Report may contain forward-looking statements within the meaning of the safe harbor provisions of the U.S. PrivateSecurities Litigation Reform Act of 1995. Forward-looking statements reflect our current views with respect to, among other things, term liquidity. Examples of forward-looking statements include, among others, statements we make regarding future estimated volume,pricing and revenue, and anticipated levels of capital expenditures and cost of goods sold. You can identify these forward-lookingstatements by the use of forward-looking words such as “will,” “may,” “plan,” “estimate,” “project,” “believe,” “anticipate,” “expect,”“foresee,” “intend,” “should,” “would,” “could,” “target,” “goal,” “continue to,” “positioned to,” “are confident,” or the negativeversions of those words or other comparable words. Any forward-looking statements contained in this Report are based upon ourhistorical performance and on our current plans, estimates and expectations considering information currently available to us. Theinclusion of this forward-looking information should not be regarded as a representation by us that the future plans, estimates, or in these statements. We believe that these factors include, but are not limited to:•our dependence on the global steel industry generally and the electric arc furnace (“EAF”) steel industry in particular;•the cyclical nature of our business and the selling prices of our products, which may decline in the future, and may lead toprolonged periods of reduced profita