UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of June 2025

Commission File Number: 001-41362

Ostin Technology Group Co., Ltd.

(Translation of registrant’s name into English)

Building 2, 101

1 Kechuang Road

Qixia District, Nanjing

Jiangsu Province, China 210046

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

INFORMATION CONTAINED IN THIS FORM 6-K REPORT

~~Ostin~~On June 30, 2025, Ostin Technology Group Co., Ltd. (the “Company”) isentered ~~filing~~into ~~its~~a ~~unaudited~~securities ~~financial~~purchase ~~results~~agreement (the “Securities Purchase Agreement”) with certain institutional investor (“Purchaser,” together with the Company, the “Parties”) in connection with a registered direct offering for the ~~six~~offer ~~months~~and ~~ended~~sale ~~March~~of 3110,500,000 ~~2025~~Class A ordinary shares of the Company, par value $0.001 (“Class A Ordinary Shares”) and pre-funded warrants to ~~discuss~~purchase 31,166,667 Class A Ordinary Shares (“Pre-Funded Warrants”), ~~its~~in ~~recent~~the ~~corporate~~aggregate ~~developments~~(such offering, the “Offering”). ~~Attached~~Pursuant asto ~~exhibits~~the Securities Purchase Agreement, the Company also agreed to, amongst ~~this~~other ~~Report~~things, onadjustment ~~Form~~terms 6in the Pre-KFunded ~~are:~~Warrants, issuance of the shares underlying the Pre-Funded Warrants upon the exercise of the Pre-Funded Warrants, in accordance with the terms of the Pre-Funded Warrants, and the Parties agreed to customary representations and warranties and agreements and indemnification rights and obligations.

●The Pre-Funded Warrants have an exercise price of $0.001 per share and each Pre-Funded Warrant is exercisable for one Class A Ordinary Share (the ~~management’s~~shares ~~discussion~~underlying the Pre-Funded Warrants, the “Warrant Shares”). A holder of the Pre-Funded Warrants (“Holder”) will not have the right to exercise any portion of its Pre-Funded Warrants if the Holder, together with its affiliates, would beneficially own in excess of 9.99% of the number of Class A Ordinary Shares outstanding immediately after giving effect to such exercise. The Pre-Funded Warrants will be immediately exercisable (subject to the aforementioned beneficial ownership limitation) and ~~analysis~~may be exercised at any time until all of ~~financial~~the ~~condition~~Pre-Funded Warrants are exercised in full. The Pre-Funded Warrant may be exercised, in whole or in part, at such time by means of a cashless exercise, under which cashless exercise the Holder is entitled to receive a number of Warrant Shares under the terms of the Pre-Funded Warrants. The exercise price of the Pre-Funded Warrants is subject to adjustment for stock splits, stock dividends, stock combinations, and ~~results~~similar capital transactions or such other event as further described in the Pre-Funded Warrants. As more fully described in the Securities Purchase Agreement, Holders are also entitled to acquire Purchase Rights (as defined in the Pre-Funded Warrants) upon subsequent rights offerings conducted by the Company, are entitled to certain pro rata distributions, and may be issued shares of Common ~~operations~~Stock upon the occurrence of a Fundamental Transaction (as ~~Exhibit~~defined 99in the Pre-Funded Warrants).1;

●The Class ~~the~~A ~~unaudited~~Ordinary ~~condensed~~Shares, ~~consolidated~~the ~~financial~~Pre-Funded ~~statements~~Warrants, and ~~related~~the ~~notes~~Warrant asShares ~~Exhibit~~were 99offered pursuant to the (i) registration statement on Form F-3 (File No.2; 333-279177) filed with the U.S. Securities and Exchange Commission (“SEC”) on May 7, 2024 and declared effective by the SEC on May 28, 2024, and the (ii) prospectus supplement filed with the SEC on June 30, 2025.

●The ~~interactive~~Offering ~~data~~was ~~file~~consummated on ~~disclosure~~July as1, ~~Exhibit~~2025. ~~101~~The inCompany ~~accordance~~received ~~with~~net ~~Rule~~proceeds ~~405~~ of ~~Regulation~~approximately ~~S-T~~$4.52 million from the Offering, after deducting offering expenses payable by the Company, including placement agent fees, legal fees, and clearing fees. The Company intends to use the net proceeds from the Offering for general corporate purposes.

~~This~~In ~~report~~connection ~~shall~~with bethe ~~deemed~~Offering, tothe beCompany ~~incorporated~~entered ~~by reference~~ into ~~the~~a ~~registration~~Placement ~~statement~~Agency ofAgreement (the ~~Company~~“Placement Agency Agreement”) on ~~Form~~June 30, 2025 with Univest ~~F-3~~Securities, LLC (~~File~~“Univest”), Nopursuant to which Univest agreed to act as the exclusive placement agent in connection with the Offering. ~~333-279177)~~As ~~and~~compensation to beUnivest, the Company paid Univest a ~~part~~cash ~~thereof~~fee ~~from~~of 7.0% of the ~~date~~aggregate ongross ~~which~~proceeds ~~this~~raised ~~report~~in isthe ~~filed,~~Offering and toreimburse Univest one percent (1%) of the ~~extent~~actual ~~not~~amount ~~superseded~~of bythe ~~documents~~aggregate gross cash proceeds to us and out-of-pocket expenses, including orthe ~~reports~~reasonable ~~subsequently~~fees, ~~filed~~costs orand ~~furnished~~disbursements of its legal counsel, in an amount not to exceed an aggregate of $80,000.

~~CAUTIONARY~~The foregoing ~~STATEMENT~~summaries ~~REGARDING~~of ~~FORWARD~~the Securities Purchase Agreement, Pre-~~LOOKING~~Funded Warrant, and Placement Agency Agreement do not purport to be complete ~~STATEMENTS~~and are subject to and are qualified in their entirety by copies of such documents filed as Exhibits 10.1, 4.1, and 10.2, respectively to this Current Report on Form 8-K (“Form 8-K”) and are incorporated herein by reference.

~~This~~The ~~report~~Company onissued ~~Form 6-K~~a ~~and~~press ~~the~~release ~~exhibits~~announcing ~~hereto contain “forward-looking statements” for purposes of~~ the ~~safe~~Offering ~~harbor~~on ~~provisions~~June ~~of the Private Securities Litigation Reform Act of 1995 that represent the Company’s beliefs~~30, ~~projections and predictions about future events~~2025. ~~All~~A ~~statements other~~copy ~~than statements~~ of ~~historical fact are “forward-looking statements,” including any projections of earnings, revenue or other financial items, any statements of~~ the ~~plans,~~press ~~strategies~~release ~~and~~is ~~objectives~~filed ofherein ~~management~~as ~~for~~Exhibit future operations, any statements concerning proposed new projects or other developments, any statements regarding future economic conditions or performance, any statements of management’s beliefs, goals, strategies, intentions and objectives, and any statements of assumptions underlying any of the foregoing99.1 Words such as “may”, “will”, “should”, “could”, “would”, “predicts”, “potential”, “continue”, “expects”, “anticipates”, “future”, “intends”, “plans”, “believes”, “estimates” and ~~similar~~is ~~expressions, as well as statements in the future tense, identify forward-looking~~incorporated ~~statements~~by reference.

~~These~~Item statements are necessarily subjective and involve known and unknown risks, uncertainties and other important factors that could cause the Company’s actual results, performance or achievements, or industry results, to differ materially from any future results, performance or achievements described in or implied by such statements9.01 ~~Actual~~Financial ~~results~~Statements ~~may differ materially from expected results described in the Company’s forward-looking statements, including with respect to correct measurement~~ and identification of factors affecting the Company’s business or the extent of their likely impact, and the accuracy and completeness of the publicly available information with respect to the factors upon which the Company’s business strategy is based or the success of the Company’s businessExhibits.

Forward-looking statements should not be read as a guarantee of future performance or results, and will not necessarily be accurate indications of whether, or the times by which, the Company’s performance or results may be achieved. Forward-looking statements are based on information available at the time those statements are made and management’s belief as of that time with respect to future events, and are subject to risks and uncertainties that could cause actual performance or results to differ materially from those expressed in or suggested by the forward-looking statements. Important factors that could cause such differences include, but are not limited to, those factors discussed more fully under the caption “Risk Factors” as well as other risks and factors identified from time to time in the Company’s SEC filings.

Exhibit No.		Description
4.1		Pre-Funded Warrant
5.1		Opinion of Ogier
5.2		Opinion of Loeb & Loeb LLP
10.1		Securities Purchase Agreement
10.2		Placement Agency Agreement
99.1		Press Release dated June 30, 2025
104		Cover Page Interactive Data File (formatted in Inline XBRL).

1+ Portions of this exhibit have been redacted

~~Exhibit Index~~1

Exhibit No.		Description
99.1		Management’s Discussion and Analysis of Financial Condition and Results of Operations for the Six Months Ended March 31, 2025
99.2		Condensed Consolidated Financial Statements for the Six Months Ended March 31, 2025
101.INS		Inline XBRL Instance Document (the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document)
101.SCH		Inline XBRL Taxonomy Extension Schema Document
101.CAL		Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF		Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB		Inline XBRL Taxonomy Extension Labels Linkbase Document
101.PRE		Inline XBRL Taxonomy Extension Presentation Linkbase Document
104		Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

SIGNATURES

2Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

~~SIGNATURES~~Ostin Technology Group Co., Ltd. By: /s/ Tao Ling Name: Tao Ling Title: Chief Executive Officer

~~Pursuant~~Date: toJuly ~~the requirements of the Securities Exchange Act of 1934~~1, ~~the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.~~2025

~~Ostin Technology Group Co., Ltd. By: /s/ Tao Ling Name: Tao Ling Title: Chief Executive Officer~~2

Date: June 30, 2025

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