SEC Form 424B3 filed by Northann Corp.

Northann Corp.

This prospectus supplement updates, amends and supplements the prospectus dated November 13, 2025 (the “Prospectus”), which forms a part of our Registration Statement on Form S-1 (Registration No. 333-290562). Capitalized terms used in this prospectus supplement and not otherwise defined herein have the meanings specified in the Prospectus.

This prospectus supplement is being filed to update, amend, and supplement the information included in the Prospectus with the information contained in our Quarterly Report on Form 10-Q filed with the SEC on November 14, 2025, which are set forth below.

This prospectus supplement is not complete without the Prospectus. This prospectus supplement should be read in conjunction with the Prospectus, which is to be delivered with this prospectus supplement, and is qualified by reference thereto, except to the extent that the information in this prospectus supplement updates or supersedes the information contained in the Prospectus. Please keep this prospectus supplement with your Prospectus for future reference.

Our common stock is traded on NYSE American under the symbol “NCL.” On November 17, 2025, the last reported sale price of our common stock was $0.4165 per share.

Investing in shares of our Ordinary Shares involves risks that are described in the “Risk Factors” section beginning on page 16 of the Prospectus.

Neither the U.S. Securities and Exchange Commission nor any state securities commission has approved or disapproved of the securities to be issued under the Prospectus or determined if the Prospectus or this prospectus supplement is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus supplement is November 18, 2025

UNITED STATES 

SECURITIES AND EXCHANGE COMMISSION 

Washington, D.C. 20549 

FORM 10-Q 

(Mark One) 

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE  

ACT OF 1934 

For the quarterly period ended September 30, 2025

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE  

ACT OF 1934 

For the transition period from to  

Commission File No. 001-41816 

Securities registered pursuant to Section 12(b) 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 1934 during 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 filing requirements for the past 90 days. Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes x No ¨

Indicate 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 Rule 12b-2 of the Exchange Act. 

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 revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨ 

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨ No x

On November 12, 2025, the registrant had 22,724,784 shares of common stock and 1,250,000 shares of Series A Preferred Stock outstanding, post October 7, 2025, 1-for-8 reverse stock split.

Northann Corp. 

Quarterly Report on Form 10-Q 

TABLE OF CONTENTS 

PART I – FINANCIAL INFORMATION 

Item 1. Financial Statements

NORTHANN CORP.

CONSOLIDATED BALANCE SHEETS

(Unaudited)

(In U.S. dollars)

The accompanying notes are an integral part of these consolidated financial statements.

NORTHANN CORP.

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS)

(Unaudited)

(In U.S. dollars)

The accompanying notes are an integral part of these consolidated financial statements.

NORTHANN CORP.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(Unaudited)

(In U.S. dollars)

The accompanying notes are an integral part of these consolidated financial statements.

NORTHANN CORP.

CONSOLIDATED STATEMENTS OF CASH FLOWS

 (Unaudited)

(In U.S. dollars)

The accompanying notes are an integral part of these consolidated financial statements.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

AS OF AND FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2025

(In U.S. dollars)

The Company commenced operations in August 2013 with the establishment of Northann Building Solutions LLC. (“NBS”) in Delaware. In December 2013, Northann (Changzhou) Construction Products Ltd (“NCP”) was established in China. All of its products were manufactured through NCP.

In March 2014, Benchwich Construction Products Ltd (“Benchwick”) was established in Hong Kong. All wholesales to distributors are conducted through Benchwick.

In April 2014, Changzhou Macro Merit International Trading Co., Ltd. (“MARCO”) was established in China. All the import/export of our products are conducted through MARCO.

In February 2016, Northann Distribution Center Inc. (“NDC”) was established in California. NDC is a distribution center in the United States and maintains a small inventory for retail sales.

In September 2017, Changzhou Ringold International Trading Co., Ltd. (“Ringold”) was established in China. All of the raw material are procured from third parties through Ringold.

In September 2018, Crazy Industry (Changzhou) Industry Technology Co., Ltd. (“Crazy Industry”) was established in China. Crazy Industry is the research and development hub.

In June 2020, Dotfloor Inc. (“Dotfloor”) was established in California. Dotfloor operates dotfloor.com, the online store that offers our vinyl flooring products to retail customers in the United States.

In March 2022, Northann Corp. (“Northann”), the current ultimate holding company, was incorporated in Nevada as part of the restructuring transactions in contemplation of our initial public offering. In connection with its incorporation, in April 2022, we completed a share swap transaction and issued common stock and Series A Preferred Stock of Northann to the then existing shareholders of NBS, based on their then respective equity interests held in NBS. NBS then became our wholly owned subsidiary.  In accordance to ASC 805-50-30-5 and ASC 805-50-45-1 through 45-5, the series of restructuring transactions have been accounted for as transactions between entities under common control; accordingly, the Company’s historical capital structure has been retroactively restated to the first period presented.

On October 23, 2023, the Company consummated the initial public offering (the “IPO”) of 1,200,000 shares of common stock, par value $0.001 per share at an offering price of $5.00 per share. On October 25, 2023, the underwriters of the IPO fully exercised the over-allotment option granted by the Company and purchased additional 180,000 shares of Common Stock at $5.00 per share. The closing of the Over-Allotment Option took place on October 26, 2023.

In October and November 2024, the Company acquired Cedar Modern Limited and Raleigh Industries Limited, respectively.

Going Concern

The accompanying financial statements have been prepared assuming that the Company will continue as a going concern. As of September 30, 2025, the Company had a working capital deficit of $2,427,539 and net cash used in operating activities of $3,845,524 for the nine months ended September 30, 2025. The Company may not have adequate liquidity to remain solvent and settle its obligations when payment become due; these factors gave rise to substantial doubt that the Company would continue as a going concern. Management is closely monitoring its financial position, especially its working capital and cash position, as well as its gross profit margins where its positive results of operations will allow the Company to continue as going concern. The company’s foremost plan is to boost revenue and improve profitability. These financial statements do not include any adjustments that might result from the outcome of this uncertainly.

Basis of Presentation

The consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”), and include the assets, liabilities, revenues, expenses and cash flows of all subsidiaries. All significant inter-company transactions and balances between the Company and its subsidiaries are eliminated upon consolidation.

Subsidiaries are those entities in which the Company, directly or indirectly, controls more than one half of the voting power; or has the power to govern the financial and operating policies, to appoint or remove the majority of the members of the board of directors, or to cast a majority of votes at the meeting of directors.

Use of Estimates

The preparation of these consolidation financial statements requires management of the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues, costs and expenses, and related disclosures. On an on-going basis, the Company evaluates its estimates based on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. Identified below are the accounting policies that reflect the Company’s most significant estimates and judgments, and those that the Company believes are the most critical to fully understanding and evaluating its consolidated financial statements.

Basis of Consolidation

The consolidated financial statements include the financial statements of the Company.

Revenue Recognition

The Company recognizes revenues when its customer obtains control of promised goods or services, in an amount that reflects the consideration which the Company expects to receive in exchange for those goods or services. The Company recognizes revenues following the five-step model prescribed under ASU No. 2014-09: (i) identify contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenues when (or as) the Company satisfies the performance obligation.

Revenue for sales of products which are primarily comprised of hardwood floors and three-dimensional printed flooring are recognized at the time of delivery of the products set forth in contracts with customers. At the time of delivery, physical and legal control of the asset is passed from the Company to its customer, at which time the Company believes it has satisfied the single performance obligation to complete a sales transaction in order to recognize revenue. The Company’s contracts do not allow for returns, refunds, or warranties; however, it is customary in the industry to manufacturers to ship a small portion of extra product to allow for product quality issues. Also, as matter of good business practice, under very specific situations, the Company has historically agreed to provide minor discounts to customers who made complaints on products purchased. The Company has recorded these costs as period expenses when incurred as the Company is not able to reliably estimate such future expenses.

Revenues are recognized when control of the promised goods or services is transferred to our customers, which may occur at a point in time or over time depending on the terms and conditions of the agreement, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services.

Practical expedients and exemption

The Company has not incurred any costs to obtain contracts and does not disclose the value of unsatisfied performance obligations for contracts with an original expected length of one year or less.

The Company typically enters into agreements with its customers where it’s set forth the product to be sold, the price, payment terms, and any antecedent terms such as shipping and delivery specifications; these terms and conditions are most typically specified in purchase order issued by its customers to the Company. The Company typically recognizes revenue at point in time, which is when physical possession and legal title are transferred to the customer, this may be a shipping port or a specified destination; at this point the Company reasonably expect to paid for the product, or in the event where it was paid advance, the Company’s performance obligations have been satisfied and those funds are considered earned by the Company. If the Company sells products on account to customers, they are typically paid within 90 days. Any funds received in advance for the products yet to be transferred to its customer are contract liabilities that are recorded as unearned revenue on the Company’s consolidated balance sheets. $1,594,981 and $nil were recognized as unearned revenue as of September 30, 2025 and December 31, 2024.

The Company accounts for income taxes using an asset and liability approach which allows for the recognition and measurement of deferred tax assets based upon the likelihood of realization of tax benefits in future years. Under the asset and liability approach, deferred taxes are provided for the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. A valuation allowance is provided for deferred tax assets if it is more likely than not that these items will either expire before the Company is able to realize their benefits, or that future deductibility is uncertain.

Under ASC 740, a tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The evaluation of a tax position is a two-step process. The first step is to determine whether it is more-likely-than-not that a tax position will be sustained upon examination, including the resolution of any related appeals or litigations based on the technical merits of that position. The second step is to measure a tax position that meets the more-likely-than-not threshold to determine the amount of benefit to be recognized in the financial statements. A tax position is measured at the largest amount of benefit that is greater than 50 percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet the more-likely-than-not recognition threshold should be recognized in the first subsequent period in which the threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not criteria should be de-recognized in the first subsequent financial reporting period in which the threshold is no longer met. Penalties and interest incurred related to underpayment of income tax are classified as income tax expense in the year incurred. GAAP also provides guidance on de-recognition, classification, interest and penalties, accounting in interim periods, disclosures and transition.

On December 22, 2017, the Tax Cuts and Jobs Act (the “Tax Act”) was enacted by the U.S. government which included a wide range of tax reform affecting businesses including the corporate tax rates, international tax provisions, tax credits and deduction with majority of the tax provision effective after December 31, 2017. Certain activities conducted in foreign jurisdictions may result in the imposition of U.S. corporate income taxes on the Company when its subsidiaries, controlled foreign corporations (“CFCs”), generate income that is subject to Subpart F or GILTI under the U.S. Internal Revenue Code beginning after December 31, 2017.

 The Company accounts for an unrecognized tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained upon examination by the tax authorities. The Company considers and estimates interest and penalties related to the gross unrecognized tax benefits and includes as part of its income tax provision based on the applicable income tax regulations.

The Company did not accrue any liability, interest or penalties related to uncertain tax positions in the provision for income taxes line of the consolidated statements of operations for the nine months ended September 30, 2025. The Company had no uncertain tax position for the nine months ended September 30, 2025 and 2024.

Foreign Currency and Foreign Currency Translation

The functional currency of the Company is the Chinese Yuan (“RMB”), as their functional currencies. An entity’s functional currency is the currency of the primary economic environment in which it operates, normally that is the currency of the environment in which the entity primarily generates and expends cash. Management’s judgment is essential to determine the functional currency by assessing various indicators, such as cash flows, sales price and market, expenses, financing and inter-company transactions and arrangements.

Foreign currency transactions denominated in currencies other than the functional currency are translated into the functional currency using the exchange rates prevailing at the dates of the transactions. Monetary assets and liabilities denominated in foreign currencies at the balance sheet date are re-measured at the applicable rates of exchange in effect at that date. Gains and losses resulting from foreign currency re-measurement are included in the statements of comprehensive loss.

The consolidated financial statements are presented in U.S. dollars. Assets and liabilities are translated into U.S. dollars at the current exchange rate in effect at the balance sheet date, and revenues and expenses are translated at the average of the exchange rates in effect during the reporting period. Stockholders’ equity accounts are translated using the historical exchange rates at the date the entry to stockholders’ equity was recorded, except for the change in retained earnings during the period, which is translated using the historical exchange rates used to translate each period’s income statement. Differences resulting from translating functional currencies to the reporting currency are recorded in accumulated other comprehensive income in the consolidated balance sheets.

Translation of amounts from RMB and HKD into U.S. dollars has been made at the following exchange rates:

Cash consist of cash on hand and at banks and highly liquid investments, which are unrestricted from withdrawal or use, and which have original maturities of three months or less when purchased.

Accounts Receivable, Net

Accounts receivable is stated at the historical carrying amount net of allowance for doubtful accounts. The Company determines the allowance for doubtful accounts on an individual basis taking into consideration various factors including but not limited to historical collection experience and creditworthiness of the debtors as well as the age of the individual receivables balance.

Additionally, the Company would make specific bad debt provisions based on any specific knowledge the Company has acquired that might indicate that an account is uncollectible. The facts and circumstances of each account may require the Company to use judgment in assessing its collectability.

There was no allowance for doubtful accounts recorded as of September 30, 2025 and December 31, 2024.

Long-Lived Assets

Long-lived assets consist primarily of equipment and intangible assets.

Equipment

Equipment is recorded at cost less accumulated depreciation and accumulated impairment. Depreciation is computed using the straight-line method over the estimated useful lives of the assets.

Expenditure for maintenance and repairs is expensed as incurred.

The gain or loss on the disposal of equipment is the difference between the net sales proceeds and the lower of the carrying value or fair value less cost to sell the relevant assets and is recognized in general and administrative expenses in the consolidated statements of comprehensive loss.

Land Use Rights, Net

Land use rights are a form of intangible assets in the PRC. They are recorded at cost less accumulated amortization with no residual value. Amortization of land use rights are computed using the straight-line method over their estimated useful lives.

The estimated useful lives of the Company’s land use rights are as listed below:

Impairment of Long-lived Assets

In accordance with ASC 360-10-35, the Company reviews the carrying values of long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. Based on the existence of one or more indicators of impairment, the Company measures any impairment of long-lived assets using the projected discounted cash flow method at the asset group level. The estimation of future cash flows requires significant management judgment based on the Company’s historical results and anticipated results and is subject to many factors. The discount rate that is commensurate with the risk inherent in the Company’s business model is determined by its management. An impairment loss would be recorded if the Company determined that the carrying value of long-lived assets may not be recoverable. The impairment to be recognized is measured by the amount by which the carrying values of the assets exceed the fair value of the assets. No impairment has been recorded by the Company for the nine months ended September 30, 2025 and 2024.

Net earnings per share of common stock

The Company has adopted ASC Topic 260, “Earnings per Share,” (“EPS”) which requires presentation of basic EPS on the face of the income statement for all entities with complex capital structures and requires a reconciliation of the numerator and denominator of the basic EPS computation. In the accompanying consolidation financial statements, basic earnings (loss) per share is computed by dividing net loss by the weighted average number of shares of common stock outstanding during the period.

* Retrospectively restated for the effect of 1-for-2 reverse stock split. (Note 16)

Segments

The Company evaluates a reporting unit by first identifying its operating segments, and then evaluates each operating segment to determine if it includes one or more components that constitute a business. If there are components within an operating segment that meets the definition of a business, the Company evaluates those components to determine if they must be aggregated into one or more reporting units. If applicable, when determining if it is appropriate to aggregate different operating segments, the Company determines if the segments are economically similar and, if so, the operating segments are aggregated. The Company has only one major reportable segment in the periods presented. The Company’s chief operation decision maker is the Company’s Chief Executive Officer.

Shipping and Handling Costs

Outbound shipping and handling costs are expenses as incurred and charged to the selling expense. Inbound shipping and freight are charged for raw material and components are accounted for as cost of revenues.

Fair Value of Financial Instruments

U.S. GAAP establishes a three-tier hierarchy to prioritize the inputs used in the valuation methodologies in measuring the fair value of financial instruments. This hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The three-tier fair value hierarchy is:

Level 1 – observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2 – include other inputs that are directly or indirectly observable in the market place.

Level 3 – unobservable inputs which are supported by little or no market activity.

The carrying value of the Company’s financial instruments, including cash, accounts and other receivables, other current assets, accounts and other payables, and other short-term liabilities approximate their fair value due to their short maturities.

In accordance with ASC 825, for investments in financial instruments with a variable interest rate indexed to performance of underlying assets, the Company elected the fair value method at the date of initial recognition and carried these investments at fair value. Changes in the fair value are reflected in the accompanying consolidated statements of operations and comprehensive loss as other income (expense). To estimate fair value, the Company refers to the quoted rate of return provided by banks at the end of each period using the discounted cash flow method. The Company classifies the valuation techniques that use these inputs as Level 2 of fair value measurements.

As of September 30, 2025 and December 31, 2024, the Company had no investments in financial instruments.

Leases

In February 2016, the FASB issued ASU 2016-12, Leases (ASC Topic 842), which amends the leases requirements in ASC Topic 840, Leases. Under the new lease accounting standard, a lessee will be required to recognize a right-of-use asset and lease liability for most leases on the balance sheet. The new standard also modifies the classification criteria and accounting for sales-type and direct financing leases, and enhances the disclosure requirements. Leases will continue to be classified as either finance or operating leases.

The Company adopted ASC Topic 842 using the modified retrospective transition method effective January 1, 2019. There was no cumulative effect of initially applying ASC Topic 842 that required an adjustment to the opening retained earnings on the adoption date nor revision of the balances in comparative periods. As a result of the adoption, the Company recognized a lease liability and right-of-use asset for each of the existing lease arrangement. The adoption of the new lease standard does not have a material impact on the consolidated income statements or the consolidated statements of cash flows.

The Company determines if an arrangement is a lease at inception. The lease payments under the lease arrangements are fixed. Non-lease components include payments for building management, utilities and property tax. It separates the non-lease components from the lease components to which they relate.

Lease assets and liabilities are recognized at the present value of the future lease payments at the lease commencement date. The interest rate used to determine the present value of the future lease payments is the Company’s incremental borrowing rate, because the interest rate implicit in the leases is not readily determinable. The incremental borrowing rate is estimated to approximate the interest rate on a collateralized basis with similar terms and payments, and in economic environments where the leased asset is located. The lease terms include periods under options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. The Company generally uses the base, non-cancelable, lease term when determining the lease assets and liabilities.

Recently adopted accounting pronouncements

In November 2023, the FASB issued ASU 2023-07. The amendments improve reportable segment disclosure requirements. Main provisions include: (1) significant segment expenses—public entities are required to disclose significant segment expenses by reportable segment if they are regularly provided to the CODM and included in each reported measure of segment profit or loss; (2) other segment items—public entities are required to disclose other segment items by reportable segment. Such a disclosure would constitute the difference between reported segment revenues less the significant segment expenses (disclosed) less reported segment profit or loss; (3) multiple measures of a segment’s profit or loss—public entities may disclose more than one measure of segment profit or loss used by the CODM, provided that at least one of the reported measures includes the segment profit or loss measure that is most consistent with GAAP measurement principles; (4) CODM-related disclosures—disclosure of the CODM’s title and position is required on an annual basis, as well as an explanation of how the CODM uses the reported measure(s) and other disclosures; (5) entities with a single reportable segment—public entities must apply all of the ASU’s disclosure requirements, as well as all existing segment disclosure and reconciliation requirements in ASC Topic 280, Segment Reporting; (6) recasting of prior-period segment information to conform to current-period segment information—recasting is required if segment information regularly provided to the CODM is changed in a manner that causes the identification of significant segment expenses to change. The amendments in ASU 2023-07 are effective for all public entities for fiscal years beginning after December 15, 2023. Early adoption is permitted. A public entity should apply the amendments in this update retrospectively to all prior periods presented in the financial statements. The Company adopted this update beginning January 1, 2024.

In December 2023, the FASB issued ASU 2023-09, which establishes new income tax disclosure requirements in addition to modifying and eliminating certain existing requirements. The ASU amends ASC 740-10-50-12 to require public business entities (“PBEs”) to disclose a reconciliation between the amount of reported income tax expense (or benefit) from continuing operations and the amount computed by multiplying the income (or loss) from continuing operations before income taxes by the applicable statutory federal (national) income tax rate of the jurisdiction (country) of domicile. If PBE is not domiciled in the United States, the federal (national) income tax rate in such entity’s jurisdiction (country) of domicile shall normally be used in the rate reconciliation. The amendments prohibit the use of different income tax rates for subsidiaries or segments. Further, PBEs that use an income tax rate in the rate reconciliation that is other than the U.S. income tax rate must disclose the rate used and the basis for using it. The ASU also adds ASC 740-10-50-12A, which requires entities to annually disaggregate the income tax rate reconciliation between the following eight categories by both percentages and reporting currency amounts: (1) State and local income tax, net of federal (national) income tax effect; (2) Foreign tax effects; (3) Effect of changes in tax laws or rates enacted in the current period; (4) Effect of cross-border tax laws; (5) Tax credits; (6) Changes in valuation allowances; (7) Nontaxable or nondeductible items; (8) Changes in unrecognized tax benefits. PBEs must apply the ASU’s guidance to annual periods beginning after December 15, 2024 (2025 for calendar-year-end PBEs). Early adoption is permitted. Entities may apply the amendments prospectively or may elect retrospective application. The Company adopted this update beginning January 1, 2025.

Recently issued accounting pronouncements not yet adopted

In November 2024, the FASB issued ASU 2024-03 “Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40)”. The amendments in this update intend to improve the disclosures about a public business entity’s expenses and address requests from investors for more detailed information about the types of expenses (including purchases of inventory, employee compensation, depreciation, amortization, and depletion) in commonly presented expense captions (such as cost of sales, selling, general and administrative expenses, and research and development). ASU 2024-03 is effective for fiscal years beginning after December 15, 2026, and interim periods beginning after December 15, 2027. The Company is currently evaluating the impact from the adoption of this ASU on its consolidated financial statements.

Accounts receivable consist of the following:

There was no allowance for doubtful accounts recorded as of September 30, 2025 and December 31, 2024.

Other receivables consist of the following:

Inventories, net, consist of the following:

Equipment, net consist of the following:

Depreciation expenses charged to the consolidated statements of operations for the periods ended September 30, 2025 and 2024 were $474,709 and $499,107, respectively.

The Company has pledged its land use rights at No. 199, Newtag, Wujin District, Changzhou, Jiangsu Province, China, 213000 to Industrial and Commercial Bank of China Limited as a collateral for securing its loans.

Short-term and long-term loans as of September 30, 2025 and December 31, 2024 represents mainly bank borrowings obtained from financial institutions in the PRC.

The short-term and long-term bank borrowings were secured by land use right. The weighted average interest rate for the bank borrowings for the nine months ended September 30, 2025 and 2024 was approximately 3.48% and 6.22%, respectively.

Current

Non-current

For the nine months ended September 30, 2025 and 2024, the Company’s related party provided working capital to support the Company’s operations when needed. The borrowings were unsecured, due on demand, and interest free. The following table summarizes the balances with the Company’s related party.

All the above balances are due on demand, interest-free and unsecured. The Company used the funds for its operations.

Preferred Stock

The Company is authorized to issue 500,000,000 shares of capital stock, consisting of 400,000,000 shares of common stock, par value US$0.001 per share, and 100,000,000 shares of preferred stock, par value US$0.001 per share. 20,000,000 shares were designated to be series A preferred stock (the “Series A Preferred Stock”) out of the 100,000,000 shares of blank check preferred stock. Each share of common stock is entitled to one vote and each share of Series A Preferred Stock is entitled to ten votes on any matter on which action of the stockholders of the corporation is sought. The Series A Preferred Stock will vote together with the common stock. Common stock and Series A Preferred Stock are not convertible into each other. Holders of Series A Preferred Stock are not entitled to receive dividends. The Series A Preferred Stock does not have liquidation preference over the Company’s Common Stock, and therefore ranks pari passu with the Common Stock in the event of liquidation.

Common Stock

The Company is authorized to issue 400,000,000 shares of common stock with par value of US$0.001 per share.  Each share of common stock entitles the holder to one vote. For the sake of comparability, the share structure as of the date of this report has been carried back in the Company’s statement of stockholders’ equity as if they had been issued and outstanding from the beginning of the first period presented.

United States of America

The Company is subject to taxation in the United States (USA) at the tax rate of 21%.

Hong Kong

Two-tier Profits Tax Rates

The two-tier profits tax rates system was introduced under the Inland Revenue (Amendment)(No.3) Ordinance 2018 (the “Ordinance”) of Hong Kong became effective for the assessment year 2018/2019. Under the two-tier profit tax rates regime, the profits tax rate for the first HKD 2 million (approximately $257,868) of assessable profits of a corporation will be subject to the lowered tax rate, 8.25% while the remaining assessable profits will be subject to the legacy tax rate, 16.5%. The Ordinance only allows one entity within a group of “connected entities” is eligible for the two-tier tax rate benefit. An entity is a connected entity of another entity if (1) one of them has control over the other; (2) both of them are under the control (more than 50% of the issued share capital) of the same entity; (3) in the case of the first entity being a natural person carrying on a sole proprietorship business-the other entity is the same person carrying on another sole proprietorship business. Since Benchwick is wholly owned and under the control of Northann, it is a connected entity. Under the Ordinance, it is an entity’s election to nominate the entity that will be subject to the two-tier profits tax rates on its profits tax return. The election is irrevocable. The Company elected Benchwick to be subject to the two-tier profits tax rates.

The provision for current income and deferred taxes of Benchwick has been calculated by applying the new tax rate of 8.25%.

PRC

In accordance with the relevant tax laws and regulations of the PRC, a company registered in the PRC is subject to income taxes within the PRC at the applicable tax rate on taxable income. All the PRC subsidiaries that are not entitled to any tax holiday and were subject to income tax at a rate of 25% for the nine months ended September 30, 2025 and 2024. According to PRC tax regulations, the PRC net operating loss can generally carry forward for no longer than five years starting from the year subsequent to the year in which the loss was incurred. Carry back of losses is not permitted. If not utilized, the PRC net operating loss will expire in 2026.

The income tax expense was $nil and $2,797 for the nine months ended September 30, 2025 and 2024, respectively, related primarily to the Company’s subsidiaries located outside of the U.S.

Uncertain tax positions

The Company did not have any uncertain tax positions during the nine months ended September 30, 2025 and 2024.

The Company files tax returns as prescribed by the tax laws of the jurisdictions in which it operates. In the normal course of business, the Company is subject to examination by the respective jurisdictions, where applicable. The statute of limitations for the tax returns varies by jurisdictions.

Our policy is to include interest and penalty charges related to uncertain tax liabilities as necessary in the provision for income taxes. The Company has a liability for accrued interest of $nil and $nil as of September 30, 2025 and 2024, respectively.

The statute of limitations for the Internal Revenue Services to assess the income tax returns on a taxpayer expires three years from the due date of the profits tax return or the date on which it was filed, whichever is later.

In accordance with the Hong Kong profits tax regulations, a tax assessment by the IRD may be initiated within six years after the relevant year of assessment, but extendable to 10 years in the case of potential wilful underpayment or evasion.

In accordance with PRC Tax Administration Law on the Levying and Collection of Taxes, the PRC tax authorities generally have up to five years to assess underpaid tax plus penalties and interest for PRC entities’ tax filings. In the case of tax evasion, which is not clearly defined in the law, there is no limitation on the tax years open for investigation. Accordingly, the PRC entities remain subject to examination by the tax authorities based on the above.

The Company participates in a government-mandated multi-employer defined contribution plan pursuant to which certain retirement, medical and other welfare benefits are provided to employees. Chinese labor regulations require the Company to pay to the local labor bureau a monthly contribution at a stated contribution rate based on the monthly compensation of qualified employees. The relevant local labor bureau is responsible for meeting all retirement benefit obligations; the Company has no further commitments beyond their monthly contributions. For the nine months ended September 30, 2025 and 2024, the Company contributed a total of $49,607 and $48,120, respectively, to these funds.

The Company has operating leases for its office facilities. The lease is located at 9820 Dino Drive, Suite 110, Elk Grove, California, 95624, which consist of approximately 3,653 square meters. The Company’s leases have remaining terms of approximately 37 months for a lease term commencing on August 1, 2020 and ended on August 31, 2023. The lease was renewed for additional 36 months. Leases with an initial term of 12 months or less are not recorded on the balance sheet; the Company recognizes lease expense for these leases on a straight-line basis over the lease term. The Company does not separate non-lease components from the lease components to which they relate, and instead accounts for each separate lease and non-lease component associated with that lease component as a single lease component for all underlying asset classes.

The following table provides a summary of leases by balance sheet location as of September 30, 2025 and December 31, 2024:

Cash flow information related to operating leases consists of the following:

The operating lease expenses for the nine months ended September 30, 2025 and 2024 were as follows:

Maturities of operating lease liabilities as of September 30, 2025 were as follows:

Lease liabilities include lease and non-lease component such as management fee.

During the nine months ended September 30, 2025, one customers accounted for nearly 82% of the Company’s revenues. During the nine months ended September 30, 2024, two customers accounted for nearly 66% of the Company’s revenues.  No other customer accounts for more than 10% of the Company’s revenue in the nine months ended September 30, 2025 and 2024.

As of September 30, 2025, three customers accounted for 87% of the Company’s accounts receivable. As of December 31, 2024, five customers accounted for 84% of the Company’s accounts receivable. No other customer accounts for more than 10% of the Company’s accounts receivable as of September 30, 2025 and December 31, 2024.

During the nine months ended September 30, 2025, two suppliers accounted for a total of 33% of the Company’s cost of revenues. No other supplier accounts for over 10% of the Company’s cost of revenues. During the nine months ended September 30, 2024, no supplier accounts for over 10% of the Company’s cost of revenues.

As of September 30, 2025, three suppliers accounted for a total of 45% of the Company’s accounts payable. As of December 31, 2024, no supplier accounted for over 10% of the Company’s accounts payable.

Financial instruments that potentially subject the Company to a significant concentration of credit risk consist primarily of cash. As of September 30, 2025 and December 31, 2024, substantially all of the Company’s cash were held by major financial institutions located in the PRC, Hong Kong, and the United States, which management believes are of high credit quality. Deposits in the United States up to $250,000 are insured by the Federal Depository Insurance Corporation.

 For the credit risk related to trade accounts receivable, the Company performs ongoing credit evaluations of its customers and, if necessary, maintains reserves for potential credit losses. Historically, such losses have been within management’s expectations.

On July 26, 2021, the Company has contracted Changzhou Wanyuan Construction Engineering Co. to build a second phase of its factory. The amount required in the contract is $10 million. Construction is expected to take approximately one and half year, and the second phase of the factory will be approximately 250,000 square feet.

Effective on July 6, 2023, the Company implemented a 1-for-2 reverse stock split of the issued and outstanding shares. Under the reverse split, every two shares of outstanding shares issued and outstanding were automatically converted into one share of ordinary share, with a par value of US$ 0.001 each. Except as otherwise indicated, all information in the consolidated financial statements concerning share and per share data gives retroactive effect to the 1-for-2 reverse stock split. The total number of outstanding common shares immediately before the reverse split was 40,000,000 and immediately after the reverse split was 20,000,000. The total number of outstanding preferred shares immediately before the reverse split was 10,000,000 and immediately after the reverse split was 5,000,000.

In July 2023, the Company signed a secured borrowing agreement with a financial institution in the United States, in which the Company borrowed $1,000,000 secured by its accounts receivable amounted $1,491,000.

It is scheduled under the agreement that the Company pays $49,700 per week for thirty weeks to the financial institution to repay the loan.

On January 21, 2025, 3D PRINTING entered into an EB-5 loan agreement with 3DFLOR Chairman and controlling shareholder, Lin Li (“3DFLOR”), pursuant to which 3DFLOR agreed to provide 3D PRINTING a loan, with an initial maximum principal amount of $24,000,000 at an interest rate of 1.00% per year.

On October 7, 2025, the Company effected a 1-for-8 reverse stock split (the “Reverse Stock Split”) of its common stock, par value $0.001 per share (the “Common Stock”) and series A preferred stock, par value $0.001 per share (the “Preferred Stock”). As a result of the Reverse Stock Split, every eight (8) shares of the Company’s issued and outstanding Common Stock have been converted into one (1) share of issued and outstanding Common Stock and every eight (8) shares of the Company’s issued and outstanding Preferred Stock have been converted into one (1) share of Preferred Stock.

The following presents condensed financial information of Northann Corp:

Condensed Financial Information on Financial Position

* Retrospectively restated for the effect of 1-for-2 reverse stock split. (Note 16)

Condensed Financial Information on Results of Operations

Condensed Financial Information on Cash Flows

The condensed financial information reflects the accounts of the Company. The condensed financial information should be read in connection with the consolidated financial statements and notes thereto. The condensed financial information is presented as if the incorporation of the Company were in effect since January 1, 2020.

Schedule I of Rule 5-04 of Regulation S-X requires the condensed financial information of registrant shall be filed when the restricted net assets of consolidated subsidiaries exceed 25 percent of consolidated net assets as of the end of the most recently completed fiscal year. For purposes of the above test, restricted net assets of consolidated subsidiaries shall mean that amount of the registrant’s proportionate share of net assets of consolidated subsidiaries (after intercompany eliminations) which as of the end of the most recent fiscal year may not be transferred to the parent company by subsidiaries in the form of loans, advances or cash dividends without the consent of a third party (i.e., lender, regulatory agency, foreign government, etc.). The Company’s only assets are its equity interests in its subsidiaries. Unrestricted net assets are held in the Company’s subsidiaries located in the US and Hong Kong. The Company does maintain substantial assets and operating subsidiaries in China; therefore, the ability for operating subsidiaries to pay dividends or transfer assets to the Company may be restricted due to the foreign exchange control policies and availability of cash balances of the Chinese operating subsidiaries.

As of September 30, 2025, there were no material contingencies, significant provisions of long-term obligations, mandatory dividend or redemption requirements of redeemable stocks or guarantees of the Company, except for those which have been separately disclosed in the Consolidated Financial Statements, if any.

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Results of Operations

Comparison for the Three Months Ended September 30, 2025 and 2024

The following table sets forth key components of our results of operations for the three months ended September 30, 2025 and 2024, both in dollars and as a percentage of our revenues.

Revenues. Our revenues were $3,545,412 for the three months ended September 30, 2025, representing an increase of 987,827 or 38.6% from $2,557,585 for the three months ended September 30, 2024. The increase was mainly due to increase in customer demand and our sales volume in the three months ended September 30, 2025 as compared to the same period in 2024.

Cost of revenues. Our cost of revenues was $4,986,401 for the three months ended September 30, 2025, compared to $929,002 for the same period in 2024. Cost of revenues refers to the cost of material and labor cost; the percentage of direct material was over 90% of the total cost of revenues. We paid tariffs of $251,728 during the three months ended September 30, 2025, and $57,613 during the three months ended September 30, 2024. The increase in tariff was mainly due to the new higher US tariff against goods imported from China.

Gross profit and gross margin. Our gross profit was -$1,440,989 for the three months ended September 30, 2025, compared with a gross profit of $1,628,583 for the same period in 2024. Gross margin decreased from 63.7% for the three months ended September 30, 2024 to -40.6% for the three months ended September 30, 2025 due to the higher purchase price of our raw material and the higher US tariff included in the purchase price.

Selling expenses. As shown below, our selling expenses consist primarily of compensation and benefits to our selling department and other expenses incurred in connection with general sales operations. Our selling expenses increased by $6,202,945 to $ 6,362,313 for the three months ended September 30, 2025, from $159,368 for the same period in 2024, which was mainly caused by an increase of $5,929,200 in share-based compensation, an increase in rent of $137,195 resulting from the new US warehouse, an increase in salaries and social insurance of $89,858, an increase in advertising of $27,316, and an increase in freight of $17,349.

General and administrative expenses. As shown below, our general and administrative expenses consist primarily of compensation and benefits to our general management, finance and administrative staff, professional fees and other expenses incurred in connection with general operations. Our general and administrative expenses increased by $86,649 to $662,331 for the three months ended September 30, 2025, from $575,678 for the same period in 2024. The increase was mainly caused by an increase in share-based compensation to directors of $415,183, and other items with minor changes, partly offset by a decrease in service fees of $320,496.

Research and development expenses. Our research and development expenses decreased to $289,545 for the three months ended September 30, 2025 from $340,072 for the same period in 2024.

Net (loss) income. As a result of the cumulative effect of the factors described above, our net loss was $8,799,313 for the three months ended September 30, 2025, compared to the net income of $496,565 for the three months ended September 30, 2024. The decrease in net income was primarily due to the decrease in gross profit and increase in operating expenses.

Comparison for the Nine Months Ended September 30, 2025 and 2024

The following table sets forth key components of our results of operations for the nine months ended September 30, 2025 and 2024, both in dollars and as a percentage of our revenues.