SEC Form F-3 filed by ZK International Group Co. Ltd

As filed with the Securities and Exchange Commission on February 24, 2026

Registration No. 333 -              

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM F-3

REGISTRATION STATEMENT

UNDER THE

SECURITIES ACT OF 1933

ZK International Group Co., Ltd.

c/o Zhejiang Zhengkang Industrial Co., Ltd.

No. 678 Dingxiang Road, Binhai Industrial Park

Economic & Technology Development Zone

Wenzhou, Zhejiang Province

People’s Republic of China

(Address and telephone number of Registrant’s principal executive offices)

Cogency Global Inc.

122 East 42nd Street, 18th Floor

New York, New York 10168

(Name, address, and telephone number, of agent for service)

With a copy to:

Pang Zhang-Whitaker, Esq.

Darius R. Alam, Esq.

Carter Ledyard & Milburn LLP

28 Liberty Street, New York, NY 10005

1 212.238.8844

Approximate date of commencement of proposed sale to the public: From time to time after the effective date of this registration statement as determined by the registrant.

If only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box. ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a registration statement pursuant to General Instruction I.C. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☐

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.C. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933.

Emerging growth company ☐

If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised accounting standards provided to Section 7(a)(2)(B) of the Securities Act. ☐

The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with section 8(a) of the Securities Act of 1933 or until the registration statement shall become effective on such date as the Commission acting pursuant to said section 8(a), may determine.

The information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and is not soliciting offers to buy these securities in any state where the offer or sale is not permitted.

Subject to Completion, dated February 20, 2026

PROSPECTUS

$500,000,000

ZK INTERNATIONAL GROUP CO., LTD

Ordinary Shares

Debt Securities

Warrants

Subscription Rights

Units

This prospectus provides a general description of the securities we may offer from time to time. Each time we sell securities, we will provide specific terms of the securities offered in a supplement to this prospectus. The prospectus supplement may also add, update, or change information contained in this prospectus. This prospectus may not be used to consummate a sale of securities unless accompanied by the applicable prospectus supplement. You should read both this prospectus and any prospectus supplement together with additional information described under the heading “Where You Can Find More Information” and the documents incorporated or deemed to be incorporated by reference carefully before you make your investment decision.

INVESTING IN OUR SECURITIES INVOLVES A HIGH DEGREE OF RISK. SEE “RISK FACTORS” BEGINNING ON PAGE 7 AND UNDER SIMILAR HEADINGS IN THE OTHER DOCUMENTS THAT ARE INCORPORATED BY REFERENCE INTO THIS PROSPECTUS FOR A DISCUSSION OF CERTAIN FACTORS THAT SHOULD BE CONSIDERED BY PROSPECTIVE PURCHASERS OF THE SECURITIES OFFERED HEREBY.

NEITHER THE U.S. SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSIONS HAVE APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

We may offer to sell, from time to time, in one or more offerings, any combination of ordinary shares, debt securities, warrants, subscription rights, or units having an aggregate initial offering price not exceeding $500,000,000 (or their equivalent in foreign or composite currencies) on terms to be determined at the time of offering. We may also offer any of these securities that may be issuable upon the conversion, exercise or exchange of debt securities, warrants, or subscription rights.

The securities issued under this prospectus may be offered directly or through underwriters, agents or dealers. The names of any underwriters, agents or dealers will be included in a supplement to this prospectus.

The aggregate market value of our outstanding ordinary shares held by non-affiliates was approximately $24,181,231 based on 17,272,308 outstanding ordinary shares, of which 17,272,308 shares are held by non-affiliates, and a per share price of $1.40 based on the closing sale price of our ordinary shares as reported by the Nasdaq Capital Market on February 17, 2026. As of the date of this prospectus supplement, pursuant to General Instruction I.B.5. of Form F-3, the Company has not conducted any transactions in the last 12 months.

Our ordinary shares are listed on the NASDAQ Capital Market under the symbol “ZKIN”. On February 17, 2026, the closing price of our ordinary shares was $1.40 per share. Investing in our securities involves risks. See “Risk Factors” beginning on page 7 of this prospectus and related risk factors in our most recent annual report on Form 20-F (as amended, the “Annual Report”), and in other reports incorporated herein by reference.

Investors are cautioned that you are not buying shares of a China-based operating company but instead are buying shares of a BVI holding company with operations conducted by its subsidiaries.

Incorporated on May 13, 2015 under the laws of the British Virgin Islands (“BVI”), we primarily conduct our business through our subsidiary Zhejiang Zhengkang Industrial Co., Ltd. (“Zhejiang Zhengkang”). Our core business focuses on providing systematic solutions to construction projects that require sophisticated piping systems. Leveraging our experience in the industry, we offer urban planners and real estate developers sophisticated pipe and fitting products and engineering expertise, enabling them to bring communities reliable and durable gas and water transmission systems. Our products are primarily sold in China, but are also exported and distributed in Europe, Africa and Southeast Asia. Investors should be aware that they may never directly hold equity interests in the operating subsidiaries, but rather purchasing equity solely in ZK International, the ultimate BVI holding company.

Our corporate structure involves unique risks to investors. Because some of our business and operation are located in China, the PRC subsidiaries, Wenzhou Weijia Pipeline Development Co., Ltd., Wenzhou Zhengfeng Industry and Trade Co., Ltd., and Zhenjiang Zhengkang are subject to certain legal and operational risks associated with having some of our operations in China. The Chinese government has significant authority to exert influence on the ability of a China-based company to conduct its business, accept foreign investments or be listed on a U.S. or other foreign exchange. The PRC government initiated a series of regulatory actions and made a number of public statements on the regulation of business operations in China with little advance notice, including cracking down on illegal activities in the securities market, adopting new measures to extend the scope of cybersecurity reviews, and expanding efforts in anti-monopoly enforcement. We believe that neither we nor our subsidiaries are currently required to obtain permission from any of the PRC authorities to operate and issue our ordinary shares to foreign investors, or required to obtain permission or approval from the China Securities Regulatory Commission (“CSRC”), Cyberspace Administration of China (“CAC”) or any other governmental agency. As of the date of this prospectus, we and our PRC subsidiary have not been involved in any investigations on cybersecurity review initiated by any PRC regulatory authority, nor has any of them received any inquiry, notice, or sanction. Because these statements and regulatory actions are new, however, it is highly uncertain how soon legislative or administrative regulation making bodies in China will respond to them, or what existing or new laws or regulations will be modified or promulgated, if any, or the potential impact such modified or new laws and regulations will have on our daily business operations or our ability to accept foreign investments and list shares on a U.S. exchange. We may in the future be subject to an investigation by competent regulators, fines or penalties, or an order prohibiting us from conducting an offering, and these risks could result in a material adverse change in our operations and the value of our ordinary shares, significantly limit or completely hinder our ability to offer or continue to offer securities to investors, or cause such securities to significantly decline in value or become worthless. Such risks may result in a material change in the operations of the PRC subsidiaries, significant depreciation of the value of our ordinary shares, or a complete hindrance of our ability to offer or continue to offer our securities to investors and cause the value of such securities to significantly decline or be worthless.

Also as a result of our corporate structure, you may experience difficulties in effecting service of legal process, enforcing foreign judgments, or bringing actions in China against us or our management based on foreign laws.

ZK International may rely on dividends to be paid by its subsidiaries to fund its cash and financing requirements, including the funds necessary to pay dividends and other cash distributions to the shareholders, to service any debt ZK International may incur and to pay the operating expenses. If any of the subsidiaries incur debt on their own behalf in the future, the instruments governing the debt may restrict our ability to pay dividends or make other distributions to us.

During the fiscal years ended September 30, 2023, 2024 and 2025, there has been no transfers, dividends, or distributions between ZK International, its subsidiaries, or to investors, ZK International’s subsidiaries have not distributed any earnings to ZK International. ZK International has not distributed any earnings to its shareholders. ZK International and its subsidiaries do not have any plan to distribute earnings or settle amounts owed in the foreseeable future. For the foreseeable future, ZK International and the subsidiaries intend to use the earnings for business operations. As a result, we do not expect to pay any cash dividends in the foreseeable future.

This prospectus may not be used to offer or sell our securities unless accompanied by a prospectus supplement. The information contained or incorporated in this prospectus or in any prospectus supplement is accurate only as of the date of this prospectus, or such prospectus supplement, as applicable, regardless of the time of delivery of this prospectus or any sale of our securities

The date of this prospectus is     , 2026

TABLE OF CONTENTS

You should rely only on the information contained or incorporated by reference in this prospectus or any prospectus supplement. We have not authorized any person to provide you with different or additional information. If anyone provides you with different or inconsistent information, you should not rely on it. This prospectus is not an offer to sell securities, and it is not soliciting an offer to buy securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus or any prospectus supplement, as well as information we have previously filed with the SEC and incorporated by reference, is accurate as of the date on the front of those documents only. Our business, financial condition, results of operations and prospects may have changed since those dates.

ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement that we filed with the Securities and Exchange Commission (“SEC” or the “Commission”) using a “shelf” registration process. Under this shelf registration process, we may offer from time to time, in one or more offerings, securities having an aggregate initial offering price of up to $500,000,000 (or its equivalent in foreign or composite currencies). This prospectus provides you with a general description of the securities that may be offered. Each time we offer securities under this shelf registration statement, we will provide you with a prospectus supplement that describes the specific amounts, prices and terms of the securities being offered. The prospectus supplement also may add, update or change information contained in this prospectus. You should read carefully both this prospectus and any prospectus supplement together with additional information described below under the caption “Where You Can Find More Information,” before making an investment decision. We have incorporated exhibits into this registration statement. You should read the exhibits carefully for provisions that may be important to you.

Industry data and other statistical information used in this prospectus, any applicable prospectus supplement, any related free writing prospectus and any document incorporated by reference into this prospectus are based on independent publications, reports by market research firms or other published independent sources. Some data are also based on our good faith estimates, derived from our review of internal surveys and the independent sources listed above. Although we believe these sources are reliable, we have not independently verified the information.

You should rely only on the information contained or incorporated by reference in this prospectus or any prospectus supplement. We have not authorized any person to provide you with different or additional information. If anyone provides you with different or inconsistent information, you should not rely on it. This prospectus is not an offer to sell securities, and it is not soliciting an offer to buy securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus or any prospectus supplement, as well as information we have previously filed with the SEC and incorporated by reference, is accurate as of the date on the front of those documents only. Our business, financial condition, results of operations and prospects may have changed since those dates.

We may sell securities through underwriters or dealers, through agents, directly to purchasers or through a combination of these methods. We and our agents reserve the sole right to accept or reject, in whole or in part, any proposed purchase of securities. The prospectus supplement, which we will provide to you each time we offer securities, will set forth the names of any underwriters, agents or others involved in the sale of securities and any applicable fee, commission or discount arrangements with them. See the information described below under the heading “Plan of Distribution.”

THIS PROSPECTUS MAY NOT BE USED TO SELL ANY SECURITIES UNLESS ACCOMPANIED BY THE APPLICABLE PROSPECTUS SUPPLEMENT.

This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted. You should not assume that the information in this prospectus or a prospectus supplement is accurate as of any date other than the date on the front of the document.

Except as otherwise indicated by the context, references in this prospectus to:

Our fiscal year end is September 30. References to a particular “fiscal year” are to our fiscal year ended September 30 of that calendar year.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus, any applicable prospectus supplement, any related free writing prospectus and any document incorporated by reference into this prospectus contain, or will contain, forward-looking statements within the meaning of the “safe harbor” provisions of the United States Private Securities Litigation Reform Act of 1995, or the PSLRA. In addition, we, or our executive officers on our behalf, may from time to time make forward-looking statements in reports and other documents we file with the SEC or in connection with oral statements made to the press, potential investors or others. Forward-looking statements include all statements that are not statements of historical facts and may relate to, but are not limited to, expectations or estimates of future operating results or financial performance, capital expenditures, regulatory compliance, plans for growth and future operations, as well as assumptions relating to the foregoing. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “should,” “could,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “intend,” “potential,” “continue” or the negative of these terms or other similar terminology. Although we do not make forward-looking statements unless we believe we have a reasonable basis for doing so, we cannot guarantee their accuracy, and actual results may differ materially from those we anticipated due to a number of uncertainties, many of which cannot be foreseen. Our actual results could differ materially from those anticipated in these forward-looking statements for many reasons, including, but not limited to, the risks and uncertainties described in the section entitled “Risk Factors” in this prospectus, in any applicable prospectus supplement, any related free writing prospectus and in any document incorporated by reference into this prospectus.

We believe that it is important to communicate our future expectations to potential investors. However, there may be events in the future that we are not able to accurately predict or control and that may cause actual events or results to differ materially from the expectations expressed in or implied by our forward-looking statements. The risks and uncertainties described in the section entitled “Risk Factors” in this prospectus, in any applicable prospectus supplement, any related free writing prospectus and in any document incorporated by reference into this prospectus provide examples of risks, uncertainties and events that may cause our actual results to differ materially from the expectations we describe in our forward-looking statements. Before you invest in our securities, you should be aware that the occurrence of these risks and uncertainties could negatively impact, among other things, our business, cash flows, results of operations, financial condition and share price. Potential investors should not place undue reliance on our forward-looking statements.

Forward-looking statements regarding our present plans or expectations for sales, supply contracts, purchases, sources and availability of financing, and growth involve risks and uncertainties relative to return expectations and related allocation of resources, and changing economic or competitive conditions, as well as the negotiation of agreements with suppliers and customers, which could cause actual results to differ from present plans or expectations, and such differences could be material. Similarly, forward-looking statements regarding our present expectations for operating results and cash flow involve risks and uncertainties related to factors such as utilization rates, material prices, demand for products by our customers, supply and other factors described in the section entitled “Risk Factors” in this prospectus, in any applicable prospectus supplement, any related free writing prospectus and in any document incorporated by reference into this prospectus, which would also cause actual results to differ from present plans. Such differences could be material.

All future written and oral forward-looking statements attributable to us or any person acting on our behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this section. Forward-looking statements speak only as of the date the statements are made. New risks and uncertainties arise from time to time, and we cannot predict those events or how they may affect us. We assume no obligation to, and do not plan to, update any forward-looking statements as a result of new information, future events or developments, except as required by U.S. federal securities laws. You should read this prospectus, any applicable prospectus supplement, any related free writing prospectus and any document incorporated by reference into this prospectus with the understanding that we cannot guarantee future results, levels of activity, performance or achievements and that actual results may differ materially from what we expect. The forward-looking statements contained in this prospectus, any applicable prospectus supplement, any related free writing prospectus and any document incorporated by reference into this prospectus are excluded from the safe harbor protection provided by the PSLRA.

RISK FACTORS

Before making an investment decision, you should carefully consider the risks described under “Risk Factors” in the applicable prospectus supplement and in our then-most recent Annual Report, or included in any Annual Report on Form 20-F filed with the SEC after the date of this prospectus or Reports on Form 6-K furnished to the SEC after the date of this prospectus, together with all of the other information appearing in this prospectus or incorporated by reference into this prospectus and any applicable prospectus supplement, in light of your particular investment objectives and financial circumstances. Please see “Where You Can Find More Information” on how you can view our SEC reports and other filings. Our business, financial condition or results of operations could be materially adversely affected by any of these risks. The risks and uncertainties described in the applicable prospectus supplement and our other filings with the SEC incorporated by reference herein are not the only ones we face. Additional risks and uncertainties not presently known to us or that we currently consider immaterial may also adversely affect us. If any of the described risks occur, our business, financial condition or results of operations could be materially harmed. In such case, the value of our securities could decline and you may lose all or part of your investment. 

USE OF PROCEEDS

Unless otherwise set forth in the applicable prospectus supplement, we intend to use the net proceeds of any offering of securities for working capital and other general corporate purposes, which may include the repayment or refinancing of outstanding indebtedness and the financing of future acquisitions. We may have significant discretion in the use of any net proceeds. The net proceeds may be invested temporarily in interest-bearing accounts and short-term interest-bearing securities until they are used for their stated purpose. We may provide additional information on the use of the net proceeds from the sale of the offered securities in an applicable prospectus supplement relating to the offered securities.

CAPITALIZATION AND INDEBTEDNESS

Our capitalization and indebtedness will be set forth in a prospectus supplement to this prospectus or in a report of foreign private issuer on Form 6-K subsequently furnished to the SEC and specifically incorporated herein by reference. 

GENERAL DESCRIPTION OF THE SECURITIES WE MAY OFFER

We may issue from time to time, in one or more offerings the following securities:

This prospectus contains a summary of the material general terms of the various securities that we may offer. The specific terms of the securities will be described in a prospectus supplement, information incorporated by reference, or free writing prospectus, which may be in addition to or different from the general terms summarized in this prospectus. Where applicable, the prospectus supplement, information incorporated by reference or free writing prospectus will also describe any material United States federal income tax considerations relating to the securities offered and indicate whether the securities offered are or will be listed on any securities exchange. The summaries contained in this prospectus and in any prospectus supplements, information incorporated by reference or free writing prospectus may not contain all of the information that you would find useful. Accordingly, you should read the actual documents relating to any securities sold pursuant to this prospectus. See “Where You Can Find More Information” and “Incorporation of Certain Information by Reference” for information about how to obtain copies of those documents.

The terms of any particular offering, the initial offering price and the net proceeds to us will be contained in the applicable prospectus supplement, information incorporated by reference or free writing prospectus, relating to such offering.

The following is a description of the terms and provisions of our shares, debt securities and warrants to purchase shares, or debt securities, which we may offer and sell using this prospectus. These summaries are not meant to be a complete description of each security. We will set forth in the applicable prospectus supplement a description of the warrants, and, in certain cases, the ordinary shares that may be offered under this prospectus. The terms of the offering of securities, the initial offering price and the net proceeds to us, as applicable, will be contained in the prospectus supplement and other offering material relating to such offering. The supplement may also add, update or change information contained in this prospectus. This prospectus and any accompanying prospectus supplement will contain the material terms and conditions for each security. You should carefully read this prospectus and any prospectus supplement before you invest in any of our securities.

DESCRIPTION OF SHARE CAPITAL

Ordinary Shares

We are authorized to issue unlimited ordinary shares of a single class, with no par value. As of February 17, 2026, there were 17,272,308 ordinary shares issued and outstanding.

The following are summaries of the material provisions of our memorandum and articles of association and the BVI Business Companies Act (As Revised) (the “BVI Act”), insofar as they relate to the material terms of our ordinary shares.

General

All of our issued ordinary shares are fully paid and non-assessable. Each holder of ordinary shares is entitled to a certificate specifying the number of ordinary shares held by him, her or it. Our shareholders who are non-residents of the British Virgin Islands may freely hold and vote their ordinary shares.

Transfer Agent

Our transfer agent for our ordinary shares is Securities Transfer Corporation, 2901 N Dallas Parkway, Suite 380, Plano, Texas 75093, and its telephone number is (469) 633-0101.

Distributions

The holders of our ordinary shares are entitled to such dividends or other distributions as may be authorized by our Board of Directors, subject to the BVI Act, and our memorandum and articles of association. Each ordinary share of our company confers upon the shareholder (a) the right to an equal share in any dividend paid by us and (b) the right to an equal share in the distribution of the surplus assets of our company on our liquidation.

Shareholders’ voting rights

Any action required or permitted to be taken by the shareholders must be taken at a duly called meeting of the shareholders entitled to vote on such action. At each meeting of shareholders, each shareholder who is present in person or by proxy (or, in the case of a shareholder being a corporation, by its duly authorized representative) will have one vote for each ordinary share which such shareholder holds. An action that may be taken by the shareholders at a meeting may also be taken by a resolution of shareholders consented to in writing.

Election of directors

The laws of the British Virgin Islands do not specifically prohibit or restrict the creation of cumulative voting rights for the election of our directors. Cumulative voting is not a concept that is accepted as a common practice in the British Virgin Islands, and we have made no provisions in our memorandum and articles of association to allow cumulative voting for elections of directors.

Meetings of Shareholders

Any of our directors may convene a meeting of shareholders at any time and in any manner and place the director considers necessary or desirable. The director convening a meeting must not give less than seven days’ notice of the meeting to those shareholders whose names appear as shareholders in the register of shareholders on the date of the notice and are entitled to vote at the meeting, and the other directors. Our Board of Directors must convene a meeting of shareholders upon the written request of shareholders entitled to exercise 30% or more of the voting rights in respect of the matter for which the meeting is requested within 28 days of receiving the written request. A meeting of shareholders held in contravention of the requirement to give notice is valid if shareholders holding at least 90% of the total voting rights on all the matters to be considered at the meeting have waived notice of the meeting and, for this purpose, the presence of a shareholder at the meeting shall constitute waiver in relation to all the shares which that shareholder holds.

The quorum for a meeting of shareholders is duly constituted if, at the beginning of the meeting, there are present in person or by proxy not less than one-third (33.3%) of the votes of the shares (or class or series of shares) entitled to vote on the resolutions to be considered at the meeting. A quorum may comprise a single shareholder or proxy. If within two hours from the time appointed for the meeting a quorum is not present, the meeting, if convened upon the requisition of the shareholders, will be dissolved. In any other case, it will stand adjourned to the next business day in the jurisdiction in which the meeting was to have been held at the same time and place or to such other time and place as the directors may determine, and if at the adjourned meeting there are present within one hour from the time appointed for the meeting in person or by proxy not less than one third of the votes of the shares or each class or series of shares entitle to vote on the matter to be considered by the meeting, those present will constitute a quorum but otherwise the meeting will be dissolved.

Meetings of directors

Our business and affairs are managed by our Board of Directors who make decisions by voting on resolutions of directors. Our directors are free to meet at such times and in such manner and places within or outside the BVI as they determine to be necessary or desirable. A director must be given not less than 3 days’ notice of a meeting of directors, but a meeting of directors held without 3 days’ notice having been given to all directors shall be valid if all the directors entitled to vote at the meeting waive notice of the meeting, and for this purpose the presence of a director at a meeting shall constitute waiver by that director. At any meeting of directors, a quorum will be present if not less than one half of the total number of directors is present, unless there are only 2 directors in which case the quorum is 2. An action that may be taken by the directors at a meeting may also be taken by a resolution of directors consented to in writing by a majority of the directors.

A person other than an individual which is a shareholder may by a resolution of its directors or other governing body authorize any individual it thinks fit to act as its representative at any meeting of shareholders. The authorized representative shall be entitled to exercise the same powers on behalf of the person which he represents as that person could exercise if it were an individual.

Protection of minority shareholders

We would normally expect British Virgin Islands courts to follow English case law precedents, which would permit a minority shareholder to commence a representative action, or derivative actions in our name, to challenge (1) an act which is ultra vires or illegal, (2) an act which constitutes a fraud against the minority by parties in control of us, (3) an infringement of individual rights of the minority shareholder (such as the right to vote and pre-emptive rights), and (4) an irregularity in the passing of a resolution which requires a special or extraordinary majority of the shareholders.

Pre-emptive rights

There are no pre-emptive rights applicable to the issue by us of new ordinary shares under either British Virgin Islands law or our memorandum and articles of association.

Transfer of Ordinary Shares

Subject to the restrictions in our memorandum and articles of association and applicable securities laws, any of our shareholders may transfer all or any of his or her ordinary shares by written instrument of transfer signed by the transferor and containing the name and address of the transferee. Our Board of Directors may not resolve to refuse or delay the transfer of any ordinary share unless the shareholder has failed to pay an amount due in respect of it.

Liquidation

If the liquidation is a solvent liquidation, the provisions of the BVI Act govern the liquidation. A company may only be liquidated under the BVI Act as a solvent liquidation if it has no liabilities or it is able to pay its debts as they fall due, and the value of its assets exceeds its liabilities. Subject to the memorandum and articles of association of a company, a liquidator may be appointed by a resolution of directors or resolution of members, but if the directors have commenced liquidation by a resolution of directors the members must approve the liquidation plan by a resolution of members save in limited circumstances. A liquidator is appointed for the purpose of collecting in and realizing the assets of a company and distributing proceeds to creditors.

Our memorandum and articles of association provides that we may by a resolution of shareholders or by a resolution of directors appoint a voluntary liquidator. Where a liquidator has been appointed by a resolution of directors, our shareholders may by a resolution of the shareholders appoint an eligible person, subject to the BVI Act, as an additional voluntary liquidator to act jointly with the voluntary liquidator appointed.

The BVI court has authority under the Insolvency Act of the BVI to order winding up in a number of specified circumstances including where it is, in the opinion of the court, just and equitable to do so.

Calls on Ordinary Shares and forfeiture of Ordinary Shares

Our Board of Directors may from time to time make calls upon shareholders for any amounts unpaid on their ordinary shares in a notice served to such shareholders at least 14 days prior to the specified date of payment. Where such a notice has been issued its requirements have not been complied with, the directors may, at any time before the tender of payment, forfeit and cancel the ordinary shares to which the notice relates.

Redemption and Repurchase of Ordinary Shares

We may purchase, redeem or otherwise acquire and hold our own shares save that we may not purchase, redeem or otherwise acquire our own shares without the consent of shareholders whose shares are to be purchased, redeemed or otherwise acquired unless we are permitted by the BVI Act or any other provision in the memorandum and articles of association to purchase, redeem or otherwise acquire the shares without their consent.. We may only offer to acquire shares if at the relevant time our Board of Directors determines by resolution of Board of Directors that immediately after the acquisition the value of the Company’s assets will exceed its liabilities and the Company will be able to pay its debts as they fall due. Subject to the provisions of the BVI Act, we may make an offer to purchase, redeem or otherwise acquire our own shares from one or more or all of the shareholders (a) in accordance with Sections 60, 61 and 62 of the BVI Act; (b) in accordance with a right of a shareholder to have his shares redeemed or to have his shares exchanged for money or other property of our company; (c) in exchange for newly issued shares of equal value; or (d) pursuant to the provisions of Section 179 of the BVI Act. Unless the shares are held as treasury shares in accordance with Section 64 of the BVI Act, any shares acquired by the Company are deemed to be cancelled immediately on purchase, redemption or other acquisition.

Variation of rights

Subject to the provisions of the BVI Act, all or any of the rights attached to any class of shares may only, whether or not the Company is being wound up, be varied with the consent in writing of, or a resolution passed at a meeting by the holders of more than 50% of the issued shares of that class.

Changes in the number of shares we are authorized to issue and those in issue

We may from time to time by resolution of our Board of Directors or by resolution of our shareholders:

Inspection of books and records

Under the BVI Act, holders of our ordinary shares are entitled, upon giving written notice to us, to inspect (i) our memorandum and articles of association, (ii) our register of shareholders, (iii) our register of directors and (iv) minutes of meetings and resolutions of our shareholders, and to make copies and take extracts from these documents and records. However, our directors can refuse access if they are satisfied that to allow such access would be contrary to our interests. See “Where You Can Get More Information.”

Rights of non-resident or foreign shareholders

There are no limitations imposed by our memorandum and articles of association on the rights of non-resident or foreign shareholders to hold or exercise voting rights on our shares. In addition, there are no provisions in our memorandum and articles of association governing the ownership threshold above which shareholder ownership must be disclosed.

Issuance of additional Ordinary Shares

Our memorandum and articles of association authorizes our Board of Directors to issue additional ordinary shares from authorized but unissued shares, to the extent available, at such times, to such persons, for such consideration and on such terms as they may determine by a resolution of directors.

DESCRIPTION OF DEBT SECURITIES

We may issue series of debt securities, which may include debt securities exchangeable for or convertible into ordinary shares. When we offer to sell a particular series of debt securities, we will describe the specific terms of that series in a supplement to this prospectus. The following description of debt securities will apply to the debt securities offered by this prospectus unless we provide otherwise in the applicable prospectus supplement. The applicable prospectus supplement for a particular series of debt securities may specify different or additional terms.

The debt securities offered by this prospectus may be secured or unsecured, and may be senior debt securities, senior subordinated debt securities or subordinated debt securities. The debt securities offered by this prospectus may be issued under an indenture between us and the trustee under the indenture. The indenture may be qualified under, subject to, and governed by, the Trust Indenture Act of 1939, as amended. We have summarized selected portions of the indenture below. The summary is not complete. The form of the indenture has been filed as an exhibit to the registration statement on Form F-3, of which this prospectus is a part, and you should read the indenture for provisions that may be important to you.

The terms of each series of debt securities will be established by or pursuant to a resolution of our board of directors and detailed or determined in the manner provided in a board of directors’ resolution, an officers’ certificate and by a supplemental indenture. The particular terms of each series of debt securities will be described in a prospectus supplement relating to the series, including any pricing supplement.

We may issue any amount of debt securities under the indenture, which may be in one or more series with the same or different maturities, at par, at a premium or at a discount. We will set forth in a prospectus supplement, including any related pricing supplement, relating to any series of debt securities being offered, the initial offering price, the aggregate principal amount offered and the terms of the debt securities, including, among other things, the following:

We may issue debt securities that are exchangeable for and/or convertible into ordinary shares. The terms, if any, on which the debt securities may be exchanged and/or converted will be set forth in the applicable prospectus supplement. Such terms may include provisions for exchange or conversion, which can be mandatory, at the option of the holder or at our option, and the manner in which the number of ordinary shares or other securities to be received by the holders of debt securities would be calculated.

We may issue debt securities that provide for an amount less than their stated principal amount to be due and payable upon declaration of acceleration of their maturity pursuant to the terms of the indenture. We will provide you with information on the U.S. federal income tax considerations, and other special considerations applicable to any of these debt securities in the applicable prospectus supplement. If we denominate the purchase price of any of the debt securities in a foreign currency or currencies or a foreign currency unit or units, or if the principal of and any premium and interest on any series of debt securities is payable in a foreign currency or currencies or a foreign currency unit or units, we will provide you with information on the restrictions, elections, specific terms and other information with respect to that issue of debt securities and such foreign currency or currencies or foreign currency unit or units in the applicable prospectus supplement.

We may issue debt securities of a series in whole or in part in the form of one or more global securities that will be deposited with, or on behalf of, a depositary identified in the prospectus supplement. Global securities will be issued in registered form and in either temporary or definitive form. Unless and until it is exchanged in whole or in part for the individual debt securities, a global security may not be transferred except as a whole by the depositary for such global security to a nominee of such depositary or by a nominee of such depositary to such depositary or another nominee of such depositary or by such depositary or any such nominee to a successor of such depositary or a nominee of such successor. The specific terms of the depositary arrangement with respect to any debt securities of a series and the rights of and limitations upon owners of beneficial interests in a global security will be described in the applicable prospectus supplement.

The indenture and the debt securities will be governed by, and construed in accordance with, the internal laws of the State of New York, unless we otherwise specify in the applicable prospectus supplement.

DESCRIPTION OF WARRANTS

We may issue and offer warrants under the material terms and conditions described in this prospectus and any accompanying prospectus supplement. The accompanying prospectus supplement may add, update or change the terms and conditions of the warrants as described in this prospectus.

General

We may issue warrants to purchase our ordinary shares or debt securities. Warrants may be issued independently or together with any securities and may be attached to or separate from those securities. The warrants will be issued under warrant agreements to be entered into between us and a bank or trust company, as warrant agent, all of which will be described in the prospectus supplement relating to the warrants we are offering. The warrant agent will act solely as our agent in connection with the warrants and will not have any obligation or relationship of agency or trust for or with any holders or beneficial owners of warrants.

Equity Warrants

Each equity warrant issued by us will entitle its holder to purchase the equity securities designated at an exercise price set forth in, or to be determinable as set forth in, the related prospectus supplement. Equity warrants may be issued separately or together with equity securities.

The equity warrants are to be issued under equity warrant agreements to be entered into between us and one or more banks or trust companies, as equity warrant agent, as will be set forth in the applicable prospectus supplement and this prospectus.

The particular terms of the equity warrants, the equity warrant agreements relating to the equity warrants and the equity warrant certificates representing the equity warrants will be described in the applicable prospectus supplement, including, as applicable:

Holders of equity warrants will not be entitled, solely by virtue of being holders, to vote, to consent, to receive dividends, to receive notice as shareholders with respect to any general meeting for the election of directors or any other matters, or to exercise any rights whatsoever as a holder of the equity securities purchasable upon exercise of the equity warrants.

Debt Warrants

Each debt warrant issued by us will entitle its holder to purchase the debt securities designated at an exercise price set forth in, or to be determinable as set forth in, the related prospectus supplement. Debt warrants may be issued separately or together with debt securities.

The debt warrants are to be issued under debt warrant agreements to be entered into between us, and one or more banks or trust companies, as debt warrant agent, as will be set forth in the applicable prospectus supplement and this prospectus.

The particular terms of each issue of debt warrants, the debt warrant agreement relating to the debt warrants and the debt warrant certificates representing debt warrants will be described in the applicable prospectus supplement, including, as applicable:

Debt warrant certificates will be exchangeable for new debt warrant certificates of different denominations and, if in registered form, may be presented for registration of transfer, and debt warrants may be exercised at the corporate trust office of the debt warrant agent or any other office indicated in the related prospectus supplement. Before the exercise of debt warrants, holders of debt warrants will not be entitled to payments of principal of, premium, if any, or interest, if any, on the debt securities purchasable upon exercise of the debt warrants, or to enforce any of the covenants in the indentures governing such debt securities.

DESCRIPTION OF SUBSCRIPTION RIGHTS

We may issue subscription rights to purchase our Ordinary Shares. These subscription rights may be issued independently or together with any other security offered hereby and may or may not be transferable by the shareholder receiving the subscription rights in such offering. In connection with any offering of subscription rights, we may enter into a standby arrangement with one or more underwriters or other purchasers pursuant to which the underwriters or other purchasers may be required to purchase any securities remaining unsubscribed for after such offering.

The prospectus supplement relating to any subscription rights we offer, if any, will, to the extent applicable, include specific terms relating to the offering, including some or all of the following:

The description in the applicable prospectus supplement of any subscription rights we offer will not necessarily be complete and will be qualified in its entirety by reference to the applicable subscription right agreement, which will be filed with the SEC if we offer subscription rights. For more information on how you can obtain copies of the applicable subscription right agreement if we offer subscription rights, see the sections entitled “Where You Can Find More Information about Us” and “Incorporation of Documents by Reference”. We urge you to read the applicable subscription right agreement and any applicable prospectus supplement in their entirety.

DESCRIPTION OF UNITS

We may, from time to time, issue units comprised of one or more of the other securities that may be offered under this prospectus, in any combination.

Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the holder of a unit will have the rights and obligations of a holder of each included security. The unit agreement under which a unit is issued may provide that the securities included in the unit may not be held or transferred separately at any time, or at any time before a specified date.

PLAN OF DISTRIBUTION

We may sell the securities through underwriters or dealers, through agents, directly to one or more purchasers, through a rights offering, or otherwise. We will describe the terms of the offering of the securities in a prospectus supplement, information incorporated by reference or free writing prospectus, including:

Only underwriters we name in the prospectus supplement, information incorporated by reference or free writing prospectus are underwriters of the securities offered thereby. The distribution of securities may be effected, from time to time, in one or more transactions, including:

The securities may be sold at a fixed price or prices, which may be changed, or at market prices prevailing at the time of sale, at prices relating to the prevailing market prices or at negotiated prices. The consideration may be cash or another form negotiated by the parties. Agents, underwriters or broker-dealers may be paid compensation for offering and selling the securities. That compensation may be in the form of discounts, concessions or commissions to be received from us or from the purchasers of the securities. Dealers and agents participating in the distribution of the securities may be deemed to be underwriters, and compensation received by them on resale of the securities may be deemed to be underwriting discounts and commissions under the U.S. Securities Act of 1933, as amended, or the Securities Act. If such dealers or agents were deemed to be underwriters, they may be subject to statutory liabilities under the Securities Act.

We may also make direct sales through rights distributed to our existing shareholders on a pro rata basis, which may or may not be transferable. In any distribution of rights to our shareholders, if all of the underlying securities are not subscribed for, we may then sell the unsubscribed securities directly to third parties or may engage the services of one or more underwriters, dealers or agents, including standby underwriters, to sell the unsubscribed securities to third parties.

Some or all of the securities that we offer though this prospectus may be new issues of securities with no established trading market. Any underwriters to whom we sell our securities for public offering and sale may make a market in those securities, but they will not be obligated to do so and they may discontinue any market making at any time without notice. Accordingly, we cannot assure you of the liquidity of, or continued trading markets for, any securities that we offer.

Agents may, from time to time, solicit offers to purchase the securities. If required, we will name in the applicable prospectus supplement, document incorporated by reference or free writing prospectus, as applicable, any agent involved in the offer or sale of the securities and set forth any compensation payable to the agent. Unless otherwise indicated, any agent will be acting on a best efforts basis for the period of its appointment. Any agent selling the securities covered by this prospectus may be deemed to be an underwriter, as that term is defined in the Securities Act, of the securities.

If underwriters are used in an offering, securities will be acquired by the underwriters for their own account and may be resold, from time to time, in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale, or under delayed delivery contracts or other contractual commitments. Securities may be offered to the public either through underwriting syndicates represented by one or more managing underwriters or directly by one or more firms acting as underwriters. If an underwriter or underwriters are used in the sale of securities, an underwriting agreement will be executed with the underwriter or underwriters at the time an agreement for the sale is reached. The applicable prospectus supplement will set forth the managing underwriter or underwriters, as well as any other underwriter or underwriters, with respect to a particular underwritten offering of securities, and will set forth the terms of the transactions, including compensation of the underwriters and dealers and the public offering price, if applicable. The prospectus, and the applicable prospectus supplement and any applicable free writing prospectus will be used by the underwriters to resell the securities.

If a dealer is used in the sale of the securities, we or an underwriter will sell the securities to the dealer, as principal. The dealer may then resell the securities to the public at varying prices to be determined by the dealer at the time of resale. To the extent required, we will set forth in the prospectus supplement, document incorporated by reference or free writing prospectus, as applicable, the name of the dealer and the terms of the transactions.

We may directly solicit offers to purchase the securities and may make sales of securities directly to institutional investors or others. These persons may be deemed to be underwriters within the meaning of the Securities Act with respect to any resale of the securities. To the extent required, the prospectus supplement, document incorporated by reference or free writing prospectus, as applicable, will describe the terms of any such sales, including the terms of any bidding or auction process, if used.

Agents, underwriters and dealers may be entitled under agreements which may be entered into with us to indemnification by us against specified liabilities, including liabilities incurred under the Securities Act, or to contribution by us to payments they may be required to make in respect of such liabilities. If required, the prospectus supplement, document incorporated by reference or free writing prospectus, as applicable, will describe the terms and conditions of such indemnification or contribution. Some of the agents, underwriters or dealers, or their affiliates may be customers of, engage in transactions with or perform services for us, our subsidiaries or affiliates in the ordinary course of business.

Under the securities laws of some states, the securities offered by this prospectus may be sold in those states only through registered or licensed brokers or dealers.

Any person participating in the distribution of ordinary shares registered under the registration statement that includes this prospectus will be subject to applicable provisions of the Exchange Act, and the applicable SEC rules and regulations, including, among others, Regulation M, which may limit the timing of purchases and sales of any of our ordinary shares by any such person. Furthermore, Regulation M may restrict the ability of any person engaged in the distribution of our ordinary shares to engage in market-making activities with respect to our ordinary shares. These restrictions may affect the marketability of our ordinary shares and the ability of any person or entity to engage in market-making activities with respect to our ordinary shares.

Certain persons participating in an offering may engage in over-allotment, stabilizing transactions, short-covering transactions and penalty bids in accordance with Regulation M under the Exchange Act that stabilize, maintain or otherwise affect the price of the offered securities. If any such activities will occur, they will be described in the applicable prospectus supplement.

To the extent required, this prospectus may be amended or supplemented from time to time to describe a specific plan of distribution.

All securities we offer other than ordinary shares will be new issues of securities with no established trading market. Any underwriters may make a market in these securities, but will not be obligated to do so and may discontinue any market making at any time without notice. We cannot guarantee the liquidity of the trading markets for any securities.

In compliance with the guidelines of the Financial Industry Regulatory Authority (“FINRA”), the aggregate maximum discount, commission or agency fees or other items constituting underwriting compensation to be received by any FINRA member or independent broker-dealer will not exceed 8% of any offering pursuant to this prospectus and any applicable prospectus supplement, as the case may be.

TAXATION

Material income tax consequences relating to the purchase, ownership and disposition of any of the securities offered by this prospectus will be set forth in the applicable prospectus supplement relating to the offering of those securities.

LEGAL MATTERS

Carter Ledyard & Milburn LLP is acting as counsel for us with respect to certain legal matters as to United States federal securities law and New York state law. Except as otherwise set forth in the applicable prospectus supplement, the validity of the ordinary shares and legal matters in connection with the securities offered pursuant to this prospectus to the extent governed by the laws of the British Virgin Islands will be passed upon for us by Maples and Calder (Hong Kong) LLP. Additional legal matters may be passed on for us, or any underwriters, dealers or agents, by counsel that we will name in the applicable prospectus supplement.

EXPERTS

The financial statements incorporated by reference in this prospectus for the year ended September 30, 2025 have been audited by Fortune CPA, Inc., independent registered public accounting firm, as set forth in its report thereon included therein, and incorporated herein by reference, and are included in reliance upon such report given on the authority of such firm as experts in accounting and auditing.

ENFORCEABILITY OF CIVIL LIABILITIES

UNDER UNITED STATES FEDERAL SECURITIES LAWS AND OTHER MATTERS

We are incorporated under the laws of the British Virgin Islands with limited liability. We chose to incorporate ZK International in the British Virgin Islands because of certain benefits associated with being a British Virgin Islands corporation, such as political and economic stability, an effective judicial system, a favorable tax system, the absence of exchange control or currency restrictions and the availability of professional and support services. However, the British Virgin Islands has a less developed body of securities laws as compared to the United States and provides protections for investors to a lesser extent. In addition, British Virgin Islands companies may not have standing to sue before the federal courts of the United States.

Substantially all of our assets are located outside the United States. In addition, a majority of our directors and officers are nationals and/or residents of countries other than the United States, and all or a substantial portion of such persons’ assets are located outside the United States. As a result, it may be difficult for investors to effect service of process within the United States upon us or such persons or to enforce against them or against us, judgments obtained in United States courts, including judgments predicated upon the civil liability provisions of the securities laws of the United States or any state thereof.

We have appointed Cogency Global Inc. as our agent to receive service of process with respect to any action brought against us in the United States District Court for districts in the State of New York under the federal securities laws of the United States or of any State of the United States or any action brought against us in the Supreme Court of the State of New York under the securities laws of the State of New York.

There is uncertainty as to whether the courts of China would (1) recognize or enforce judgments of United States courts obtained against us or such persons predicated upon the civil liability provisions of the securities laws of the United States or any state thereof, or (2) be competent to hear original actions brought in each respective jurisdiction, against us or such persons predicated upon the securities laws of the United States or any state thereof.

The recognition and enforcement of foreign judgments are provided for under the Chinese Civil Procedure Law. Chinese courts may recognize and enforce foreign judgments in accordance with the requirements of the Chinese Civil Procedure Law based either on treaties between China and the country where the judgment is made or in reciprocity between jurisdictions. China does not have any treaties or other agreements with the British Virgin Islands or the United States that provide for the reciprocal recognition and enforcement of foreign judgments. As a result, it is uncertain whether a Chinese court would enforce a judgment rendered by a court in either of these two jurisdictions.

The United States and the British Virgin Islands do not have a treaty providing for reciprocal recognition and enforcement of judgments of courts of the United States in civil and commercial matters and that a final judgment for the payment of money rendered by any general or state court in the United States based on civil liability, whether or not predicated solely upon the U.S. federal securities laws, may not be enforceable in the British Virgin Islands. A final and conclusive judgment obtained in U.S. federal or state courts under which a sum of money is payable as compensatory damages (i.e., not being a sum claimed by a revenue authority for taxes or other charges of a similar nature by a governmental authority, or in respect of a fine or penalty or multiple or punitive damages) may be the subject of an action on a debt in the court of the British Virgin Islands.

DISCLOSURE OF COMMISSION POSITION ON INDEMNIFICATION FOR SECURITIES ACT LIABILITIES

Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers or persons controlling us pursuant to the foregoing provisions, we have been informed that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable.

INFORMATION INCORPORATED BY REFERENCE

The SEC allows us to “incorporate by reference” into this prospectus the information we file with them. The information we incorporate by reference into this prospectus is an important part of this prospectus. Any statement in a document we have filed with the SEC prior to the date of this prospectus and which is incorporated by reference into this prospectus will be considered to be modified or superseded to the extent a statement contained in this prospectus or any other subsequently filed document that is incorporated by reference into this prospectus modifies or supersedes that statement. The modified or superseded statement will not be considered to be a part of this prospectus, except as modified or superseded.

We incorporate by reference into this prospectus the information contained in the following documents that we have filed with the SEC pursuant to the Securities Exchange Act of 1934, as amended (the “Exchange Act”), which is considered to be a part of this prospectus:

all documents that we file with the SEC pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act subsequent to the date of this Registration Statement and prior to the filing of a post-effective amendment to this Registration Statement (that indicates that all securities offered have been sold or that deregisters all securities then remaining unsold) shall be deemed to be incorporated by reference in this Registration Statement and to be part hereof from the date of filing of such documents, except as to specific sections of such reports and documents as set forth therein.

We also incorporate by reference all additional documents that we file with the SEC pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act that are filed after the effective date of the registration statement of which this prospectus is a part and prior to the termination of the offering of securities offered pursuant to this prospectus. We also incorporate by reference all additional documents that we file with the SEC pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act that are filed after the filing date of the registration statement of which this prospectus is a part and prior to effectiveness of that registration statement. We are not, however, incorporating, in each case, any documents or information that we are deemed to “furnish” and not file in accordance with SEC rules.

You may obtain a copy of these filings, without charge, by writing or calling us at:

ZK International Group Co. Ltd.

c/o Zhejiang Zhengkang Industrial Co., Ltd.

No. 678 Dingxiang Road, Binhai Industrial Park

Economic & Technology Development Zone

Wenzhou, Zhejiang Province

People’s Republic of China

Attn: Investor Relations

WHERE YOU CAN FIND MORE INFORMATION

We are a reporting company and file annual and current reports and other information with the SEC. This prospectus does not contain all of the information set forth in the registration statement or the exhibits that are a part of the registration statement. Our filings with the SEC are available to the public through the SEC’s Internet site at http://www.sec.gov.

MATERIAL CHANGES

Except as otherwise described in our Annual Report on Form 20-F for the fiscal year ended September 30, 2025 and in our reports on Form 6-K incorporated by reference herein and as disclosed in this prospectus, no reportable material changes have occurred since September 30, 2025.

ZK International Group Co. Ltd.

$500,000,000

Ordinary Shares, Debt Securities, Warrants, Subscription Rights, Units

PROSPECTUS

February 24, 2026

No dealer, salesperson, or other person has been authorized to give any information or to make any representation not contained in this prospectus, and, if given or made, such information and representation should not be relied upon as having been authorized by us. This prospectus does not constitute an offer to sell or a solicitation of an offer to buy any of the securities offered by this prospectus in any jurisdiction or to any person to whom it is unlawful to make such offer or solicitation. Neither the delivery of this prospectus nor any sale made hereunder shall under any circumstances create an implication that there has been no change in the facts set forth in this prospectus or in our affairs since the date hereof.

PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

Item 8. Indemnification of Directors and Officers

Under British Virgin Islands law, each of our directors and officers, in performing his or her functions, is required to act honestly and in good faith with a view to our best interests and exercise the care, diligence and skill that a reasonably prudent person would exercise in comparable circumstances. British Virgin Islands law does not limit the extent to which a company’s memorandum and articles of association may provide for indemnification of officers and directors, except to the extent any such provision may be held by the British Virgin Islands courts to be contrary to public policy, such as to provide indemnification against civil fraud or the consequences of committing a crime.

Under our memorandum and articles of association, we may indemnify our directors against all expenses, including legal fees, and against all judgments, fines and amounts paid in settlement and reasonably incurred in connection with civil, criminal, administrative or investigative proceedings to which they are a party or are threatened to be made a party by reason of their acting as our directors. To be entitled to indemnification, these persons must have acted honestly and in good faith with a view to the best interest of the company and, in the case of criminal proceedings, they must have had no reasonable cause to believe their conduct was unlawful. The decision of our Board of Directors as to whether such a person acted honestly and in good faith with a view to the best interests of the company and as to whether the person had no reasonable cause to believe that his or her conduct was unlawful is, in the absence of fraud, sufficient for the purposes of the indemnification, unless a question of law is involved. The termination of any proceedings by any judgment, order, settlement, conviction or the entry of no plea does not, by itself, create a presumption that a director did not act honestly and in good faith and with a view to our best interests or that the director had reasonable cause to believe that his or her conduct was unlawful. Such limitation of liability does not affect the availability of equitable remedies such as injunctive relief or rescission. These provisions will not limit the liability of directors under United States federal securities laws.

We may indemnify anyone serving at our request as a director of another entity against all expenses, including legal fees, and against all judgments, fines and amounts paid in settlement and reasonably incurred in connection with legal, administrative or investigative proceedings. To be entitled to indemnification, such a person must have acted honestly and in good faith with the view to our best interests and, in the case of criminal proceedings, must have had no reasonable cause to believe that his or her conduct was unlawful. The decision of our Board of Directors as to whether the person acted honestly and in good faith with a view to our best interests and as to whether the person had no reasonable cause to believe that his or her conduct was unlawful, is in the absence of fraud sufficient for the purposes of indemnification, unless a question of law is involved. The termination of any proceedings by any judgment, order, settlement, conviction or the entry of no plea does not, by itself, create a presumption that a person did not act honestly and in good faith and with a view to our best interests or that the person had reasonable cause to believe that his or her conduct was unlawful.

We may purchase and maintain insurance in relation to any of our directors or officers against any liability asserted against the directors or officers and incurred by the directors or officers in that capacity, whether or not we have or would have had the power to indemnify the directors or officers against the liability as provided in our memorandum and articles of association.

Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers or persons controlling the Registrant pursuant to the foregoing provisions, the Registrant has been informed that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable. 

Item 9. Exhibits

A list of exhibits filed with this registration statement on Form F-3 is set forth on the Exhibit Index and is incorporated herein by reference.

Item 10. Undertakings

Provided however, that:

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form F-3 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunder duly authorized, on February 24, 2026.

Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated.

POWER OF ATTORNEY

Each person whose signature appears below constitutes and appoints Ruihong Ma as his or her true and lawful attorney-in-fact and agent, with full power of substitution and re-substitution, for him or her and in his or her name, place, and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments, exhibits thereto and other documents in connection therewith) to this Registration Statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act, this Registration Statement has been signed below by the following persons in the capacities and on February 24, 2026.

SIGNATURE OF AUTHORIZED REPRESENTATIVE IN THE UNITED STATES

Pursuant to the Securities Act of 1933, the undersigned, the duly authorized representative in the United States of ZK International Group Co., Ltd., has signed this registration statement or amendment thereto on February 24, 2026.

EXHIBIT INDEX