英诺斯派材料 2025年度报告

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934: Title of each classTrading Symbol(s)Name of each exchange on which registeredCommon stock, par value $0.01 per shareIOSPNASDAQSecurities registered pursuant to Section 12(g) of the Act: Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. YesշNoն Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filingrequirements for the past 90 days.YesշNoն Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 ofRegulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit suchfiles). YesշNoն Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. Large accelerated filerշNon-accelerated filerնEmerging growth companyնIf 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 Accelerated filerնSmaller reporting companyն or revised financial standards provided pursuant to Section 13(a) of the Exchange Act.ն Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internalcontrol over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm thatprepared or issued its audit report. If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in thefiling reflect the correction of an error to previously issued financial statements.ն Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensationreceived by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant as of the most recently completedsecond fiscal quarter (June 30, 2025) was approximately $1,289 million, based on the closing price of the common shares on the NASDAQ on June 30,2025. Shares of common stock held by each officer and director and by each beneficial owner who owns 5% or more of the outstanding common stockhave been excluded in that such persons may be deemed to be affiliates. This determination of affiliate status is not necessarily a conclusivedetermination for any other purpose.As of January 31, 2026, 24,777,859 shares of the registrant’s common stock were outstanding. DOCUMENTS INCORPORATED BY REFERENCEPortions of Innospec Inc.’s Proxy Statement for the Annual Meeting of Stockholders to be held on May 8, 2026 are incorporated by reference into Part III TABLE OF CONTENTS Item 1.................................................................................................................................................Business2Item 1A..........................................................................................................................................Risk Factors11Item 1B..............................................................................................................Unresolved Staff Comments21Item 1C........................................................................................................................................Cybersecurity21Item 2...............................................................................................................................................Properties24Item 3................................................................................................................................Legal Proceedings25Item 4.....................................................................................................................Mine Safety Disclosures25 Item 5...........................................................................................................Market for Registrant’s Common Equity, Related Stockholder Matters and IssuerPurchases of Equ