FORM10-Q (Mark One)☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2026 ☐TRANSITION REPORT PURSUANT TO SECTION13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromto Commission File Number001-40677 PLUM ACQUISITION CORP. III(Exact name of registrant as specified in its charter) +1 (929) 529-7129(Registrant’s telephone number, including area code) Securities registered pursuant to Section12(b)of the Act:None Name of each exchange on whichregistered Indicate by check mark whether the registrant (1)has filed all reports required to be filed by Section13 or 15(d)of the SecuritiesExchange Act of 1934 during the preceding 12months (or for such shorter period that the registrant was required to file such reports),and (2)has been subject to such filing requirements for the past 90days. Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submittedpursuant to Rule405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12months (or for such shorter period that theregistrant was required to submit such files). Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reportingcompany, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reportingcompany,” and “emerging growth company” in Rule12b-2 of the Exchange Act. Large accelerated filer☐Non-accelerated filer☒Emerging growth company☒ Accelerated filer☐Smaller reporting company☒ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section13(a)of the Exchange Act.☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule12b-2 of the Exchange Act). Yes☒No☐ There were 907,486 Class A ordinary shares and 7,062,500 Class B ordinary shares of the registrant outstanding on May 11, 2026. PLUM ACQUISITION CORP. III TABLE OF CONTENTS PagePART 1 - FINANCIAL INFORMATIONItem 1.CONDENSED FINANCIAL STATEMENTSCondensed Balance Sheets as of March 31, 2026 (Unaudited) and December 31, 20251Condensed Statements of Operations for the three months ended March 31, 2026 and 2025 (Unaudited)2Condensed Statements of Changes in Shareholders’ Deficit for the three months ended March 31, 2026 and2025 (Unaudited)3Condensed Statements of Cash Flows for the three months ended March 31, 2026 and 2025 (Unaudited)4Notes to Condensed Financial Statements (Unaudited)5Item 2.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OFOPERATIONS27Item 3.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK38Item 4.CONTROLS AND PROCEDURES38PART II - OTHER INFORMATION39Item 1.LEGAL PROCEEDINGS39Item 1A.RISK FACTORS39Item 2.UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS39Item 3.DEFAULTS UPON SENIOR SECURITIES39Item 4.MINE SAFETY DISCLOSURES39Item 5.OTHER INFORMATION39Item 6.EXHIBITS40SIGNATURES41 PLUM ACQUISITION CORP. IIICONDENSED BALANCE SHEETS Current assets:Cash$438$49,870Prepaid expenses5,6257,500Due from Merger Co27,50027,500Total current assets33,56384,870Cash held in Trust Account497,828494,421Total Assets$531,391$579,291 Current liabilities:Accounts payable$1,164,979$1,120,273Accrued expenses and other current liabilities2,882,5632,780,664Promissory note - related party2,164,8672,124,867Total current liabilities6,212,4096,025,804Warrant liabilities1,954,7396,585,940Total Liabilities8,167,14812,611,744 Class A ordinary shares subject to possible redemption, 42,486 shares at redemption value ofapproximately $11.72 and $11.64 per share at March 31, 2026 and December 31, 2025, respectively497,828494,421 Preference shares, $0.0001 par value; 1,000,000 shares authorized; none issued and outstanding——Class A ordinary shares, $0.0001 par value; 200,000,000 shares authorized; 865,000 shares issuedand outstanding at March 31, 2026 and December 31, 2025; excluding 42,486 shares subject topossible redemption as of March 31, 2026 and December 31, 20258787Class B ordinary shares, $0.0001 par value; 20,000,000 shares authorized; 7,062,500 shares issuedand outstanding as of March 31, 2026 and December 31, 2025706706Accumulated deficit(8,134,378)(12,527,667)Total Shareholders’ Deficit(8,133,585)(12,526,874)Total Liabilities and Shareholders’ Deficit$531,391$579,291 PLUM ACQUISITION CORP. IIICONDENSED STATEMENTS OF OPERATIONS(UNAUDITED) PLUM ACQUISITION CORP. IIICONDENSED STATEMENTS OF CHANGES IN SHAREHOLDERS’ DEFICIT(UNAUDITED) FOR THE THREE MONTHS ENDED MARCH 31, 2026 PLUM ACQUISITION CORP. IIICONDENSED STATEMENTS OF CASH FLOWS(UNAUDITED) Net income (loss)$4,396,696$(364,540)Adjustments to reconcile net income (loss) to net cash used i