Nanjing, China, July 28, 2025 — Ostin Technology Group Co., Ltd. (“the Company”) (NASDAQ:OST), a prominent Chinese provider of display modules and polarizers, announced today its decision to implement a 1-for-25 reverse share split (referred to as “The Reverse Share Split”) for its ordinary shares. This reverse split received approval from the Company’s shareholders at an extraordinary general meeting held on July 17, 2025. The Company’s Class A ordinary shares are scheduled to begin trading on an adjusted basis, reflecting The Reverse Share Split, on August 5, 2025, under the existing ticker symbol “OST.” The new CUSIP number for the Company’s Class A ordinary shares will be G67927122.

Upon the effectiveness of The Reverse Share Split, every twenty-five issued and outstanding Class A ordinary shares of the Company as of the effective date will be automatically combined into one Class A ordinary share. This adjustment will reduce the Company’s total number of outstanding Class A ordinary shares from approximately 132.43 million to approximately 5.29 million.

In conjunction with The Reverse Share Split, the Company also amended its Memorandum of Association. This amendment proportionately reduces the number of authorized shares available for issuance and adjusts the par value of the ordinary shares after the reverse split to $0.025 per share.

About Ostin Technology Group Co., Ltd.

Established in 2010, the Company functions as a supplier of display modules and polarizers in China. The Company designs, develops, and manufactures TFT-LCD display modules in a wide array of standard and customized sizes, primarily utilized in consumer electronics, outdoor LCD displays, and automotive displays. The Company also produces polarizers that are integrated into TFT-LCD display modules.

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Forward-Looking Statements

Certain statements within this announcement constitute forward-looking statements. These forward-looking statements involve both known and unknown risks and uncertainties and are based on current expectations and projections regarding future events and financial trends that the Company believes may impact its financial condition, results of operations, business strategy, and financial requirements. Investors can identify these forward-looking statements through words or phrases such as “may,” “will,” “expect,” “anticipate,” “aim,” “estimate,” “intend,” “plan,” “believe,” “potential,” “continue,” “is/are likely to,” or other similar expressions. The Company undertakes no obligation to update forward-looking statements to reflect subsequent events, changing circumstances, or shifts in its expectations, except as mandated by law. Although the Company believes that the expectations expressed in these forward-looking statements are reasonable, it cannot guarantee that such expectations will prove correct, and the Company cautions investors that actual results may differ materially from the anticipated results and encourages investors to review other factors that could affect its future outcomes, as detailed in the Company’s registration statement and other filings with the U.S. Securities and Exchange Commission.

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Ostin Technology Group Co., Ltd.