Yorkville Acquisition Corp.

Previous wording

We are a blank check company incorporated on March 3, 2025 as a Cayman Island exempted company and formed for thepurpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses, which we refer to throughout this Quarterly Report as our “initial business combination”. We intend to effectuate our initial business combination using cash from the proceeds of the initial public offering (the “Initial Public Offering”) and the sale of the Private Placement Warrants, the proceeds of the sale of our shares in connection with our initial business combination (pursuant to forward purchase agreements or backstop agreements we may enter into following the consummation of the Initial Public Offering or otherwise), shares issued to the owners of the target, debt issued to bank or other lenders or the owners of the target, or a combination of the foregoing.

Current wording

We are a blank check company incorporated on March 3, 2025 as a Cayman Island exempted company and formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses, which we refer to throughout this Quarterly Report as our “initial business combination”. We intend to effectuate our initial business combination using cash from the proceeds of the initial public offering (the “Initial Public Offering”) and the sale of the Private Placement Warrants, the proceeds of the sale of our shares in connection with our initial business combination (pursuant to forward purchase agreements or backstop agreements we may enter into following the consummation of the Initial Public Offering or otherwise), shares issued to the owners of the target, debt issued to bank or other lenders or the owners of the target, or a combination of the foregoing.

Previous wording

For the three months ended June 30, 2025, we had net loss of $61,710, which consisted of formation, general and administrative expenses of $63,574, offset by interest income of $1,864.

Current wording

For the three months ended September 30, 2025, we had net loss of $395,372, which consisted of formation, general and administrative expenses of $1,640,771, offset by income on investments held in the Trust Account of $1,237,068 and interest income of $8,331.

Previous wording

For the period from March 3, 2025 (inception) through June 30, 2025, we had net loss of $92,134, which consisted of formation, general and administrative expenses of $93,998, offset by interest income of $1,864.

Current wording

For the period from March 3, 2025 (inception) through September 30, 2025, we had net loss of $487,506, which consisted of formation, general and administrative expenses of $1,734,769, offset by income on investments held in the Trust Account of $1,237,068 and interest income of $10,195.

Previous wording

As of June 30, 2025, we had $1,467,830 in cash and cash equivalents held outside of the Trust Account and a working capital deficit of $815,154 (excluding cash and marketable securities held in the Trust Account and the deferred underwriter fee payable).

Current wording

As of September 30, 2025, we had $290,238 in cash and cash equivalents held outside of the Trust Account and a working capital deficit of $936,432 (excluding cash and marketable securities held in the Trust Account and the deferred underwriter fee payable).

Previous wording

For the period from March 3, 2025 (inception) through June 30, 2025, net cash used in operating activities was $83,696. Net loss of $92,134, was adjusted by formation, general and administrative expenses paid by Sponsor under promissory note – related party of $41,195, formation, general and administrative expenses paid by Sponsor in exchange for issuance of Class B ordinary shares of $12,762, and $8,438 changes in operating assets and liabilities. Net cash used in investing activities was $173,362,500 related to the funding of the Trust Account. Net cash provided by financing activities was $174,914,026 related to $171,344,250 of net proceeds from the issuance of ordinary shares, $3,518,250 of proceeds from sale of Private Placement Units, and $181,750 of capital contributions from the Sponsor, offset by $130,224 payments of deferred offering costs.

Current wording

For the period from March 3, 2025 (inception) through September 30, 2025, net cash used in operating activities was $563,093. Net loss of $487,506, was adjusted by formation, general and administrative expenses paid by Sponsor under promissory note – related party of $41,195, formation, general and administrative expenses paid by Sponsor in exchange for issuance of Class B ordinary shares of $12,762, income on investments in Trust Account of $1,237,068, and $1,107,524 changes in operating assets and liabilities. Net cash used in investing activities was $173,362,500 related to the funding of the Trust Account. Net cash provided by financing activities was $174,215,831 related to $171,344,250 of net proceeds from the issuance of ordinary shares, $3,518,250 of proceeds from sale of Private Placement Units, and $181,750 of capital contributions from the Sponsor, offset by repayment of promissory note to Sponsor of $124,723 and $703,696 payments of deferred offering costs.

Previous wording

As of June 30, 2025, we had marketable securities held in the Trust Account of $173,362,500 consisting of securities held in a money market fund that invests in U.S. Treasury securities with a maturity of 185 days or less. We intend to use substantially all of the funds held in the Trust Account, including any amounts representing interest earned on the Trust Account (less deferred underwriting fees and income taxes payable), to complete our initial business combination. To the extent that our share capital or debt is used, in whole or in part, as consideration to complete our initial business combination, the remaining proceeds held in the Trust Account will be used as working capital to finance the operations of the target business or businesses, make other acquisitions and pursue our growth strategies.

Current wording

As of September 30, 2025, we had marketable securities held in the Trust Account of $174,599,568 consisting of securities held in a money market fund that invests in U.S. Treasury securities with a maturity of 185 days or less. We intend to use substantially all of the funds held in the Trust Account, including any amounts representing interest earned on the Trust Account (less deferred underwriting fees and income taxes payable), to complete our initial business combination. To the extent that our share capital or debt is used, in whole or in part, as consideration to complete our initial business combination, the remaining proceeds held in the Trust Account will

Previous wording

As of June 30, 2025, we had cash and cash equivalents of $1,467,830 held outside the Trust Account. We intend to use the funds held outside the Trust Account primarily to identify and evaluate target businesses, perform business due diligence on prospective target businesses, travel to and from the offices, plants or similar locations of prospective target businesses or their representatives or owners, review corporate documents and material agreements of prospective target businesses, and structure, negotiate and complete an initial business combination.

Current wording

As of September 30, 2025, we had cash and cash equivalents of $290,238 held outside the Trust Account. We intend to use the funds held outside the Trust Account primarily to identify and evaluate target businesses, perform business due diligence on prospective target businesses, travel to and from the offices, plants or similar locations of prospective target businesses or their representatives or owners, review corporate documents and material agreements of prospective target businesses, and structure, negotiate and complete an initial business combination.

Previous wording

In December 2023, the FASB issued Accounting Standards Update 2023-09, “Improvements to Income Tax Disclosures” (“ASU 2023-09”), which provides for additional disclosures primarily related to the income tax rate reconciliations and income taxes paid. ASU 2023-09 requires entities to annually disclose the income tax rate reconciliation using both amounts and percentages, considering several categories of reconciling items, including state and local income taxes, foreign tax effects, tax credits and nontaxable or nondeductible items, among others. Disclosure of the reconciling items is subject to a quantitative threshold and disaggregation by nature and jurisdiction. ASU 2023-09 also requires entities to disclose net income taxes paid or received to federal, state and foreign jurisdictions, as well as by individual jurisdiction, subject to a five percent quantitative threshold. ASU 2023-09 may be adopted on a prospective or retrospective basis and is effective for fiscal years beginning after December 15, 2024 with early adoption permitted. The Company is currently assessing the impact, if any, that ASU 2023-09 would have on its financial position, results of operations or cash flows.

Current wording

In December 2023, the FASB issued Accounting Standards Update 2023-09, “Improvements to Income Tax Disclosures” (“ASU 2023-09”), which provides for additional disclosures primarily related to the income tax rate reconciliations and income taxes paid. ASU 2023-09 requires entities to annually disclose the income tax rate reconciliation using both amounts and percentages, considering several categories of reconciling items, including state and local income taxes, foreign tax effects, tax credits and nontaxable or nondeductible items, among others. Disclosure of the reconciling items is subject to a quantitative threshold and disaggregation by nature and