Exhibit 99.1

DEFINITIVE PRIVATE SUBSCRIPTION AGREEMENT

Private Placement of Class A Ordinary Shares of Sagtec Global Limited

This Definitive Private Subscription Agreement (this “Agreement”) is entered into as of June 17, 2026 (the “Effective Date”), by and between:

Sagtec Global Limited, a company incorporated in the British Virgin Islands (the “Company”),

and

Ng Chen Lok, an individual residing at No.64, Jalan Udang Gantung 8, Taman Megah Kepong, 52100 Kuala Lumpur, Malaysia (the “Subscriber”).

The Company and the Subscriber are sometimes referred to herein individually as a “Party” and collectively as the “Parties”.

RECITALS

WHEREAS, the Company desires to issue and sell to the Subscriber, and the Subscriber desires to purchase from the Company, certain Class A Ordinary Shares of the Company upon the terms and conditions set forth herein;

WHEREAS, the Subscriber is the Company’s Director, Chief Executive Officer and major shareholder;

NOW, THEREFORE, in consideration of the mutual covenants and agreements contained herein, the Parties hereby agree as follows:

ARTICLE I: SUBSCRIPTION AND ISSUANCE OF SHARES

Section 1.1 Subscription

Subject to the terms and conditions of this Agreement, the Subscriber hereby agrees to purchase from the Company, and the Company agrees to issue and sell to the Subscriber:

1,500,000 Class A Ordinary Shares of the Company (the “Shares”).

Section 1.2 Purchase Price

The purchase price of US$1.04 per Share was determined with reference to the market price of the Company’s Class A Ordinary Shares as of June 17, 2026, being the date of execution of this Agreement. The aggregate subscription amount shall be US$1,560,000 (the “Subscription Amount”).

Section 1.3 Nature of Issuance

The Shares shall constitute newly issued Class A Ordinary Shares of the Company and shall rank pari passu in all respects with the Company’s existing Class A Ordinary Shares.

ARTICLE II: CLOSING

Section 2.1 Closing Date

The closing of the transactions contemplated hereby (the “Closing”) shall occur on June 17, 2026, or such other date as may be mutually agreed by the Parties.

Section 2.2 Closing Deliveries

At Closing:

(a) the Subscriber shall deliver the Subscription Amount by wire transfer of immediately available funds;

(b) the Company shall issue the Shares to the Subscriber;

(c) the Company shall update its register of members and instruct its transfer agent to record the issuance of the Shares; and

(d) each Party shall execute and deliver such additional documents as may reasonably be required to effectuate the transactions contemplated herein.

ARTICLE III: USE OF PROCEEDS

The Company shall use the proceeds received from the issuance of the Shares for:

(a) working capital;

(b) general corporate purposes;

(c) operational expenditures;

(d) strategic initiatives and business expansion; and

(e) such other lawful purposes as may be determined by the Company’s Board of Directors.

ARTICLE IV: REPRESENTATIONS AND WARRANTIES OF THE COMPANY

The Company represents and warrants to the Subscriber that:

(a) it is duly incorporated, validly existing and in good standing under the laws of the British Virgin Islands;

(b) it has full corporate power and authority to execute, deliver and perform this Agreement;

(c) all necessary corporate actions required for the authorization, execution and delivery of this Agreement have been duly taken;

(d) the Shares have been duly authorized and, when issued pursuant to this Agreement, shall be validly issued, fully paid and non-assessable;

(e) the execution and performance of this Agreement will not violate the Company’s Memorandum and Articles of Association, any material agreement binding upon the Company, or any applicable law;

(f) the issuance of the Shares complies with applicable securities laws and Nasdaq rules; and

(g) this Agreement constitutes a valid and binding obligation of the Company enforceable against it in accordance with its terms.

ARTICLE V: REPRESENTATIONS AND WARRANTIES OF THE SUBSCRIBER

The Subscriber represents and warrants that:

(a) he has full legal capacity and authority to enter into this Agreement;

(b) he is acquiring the Shares solely for investment purposes and not with a view toward public distribution;

(c) he possesses sufficient financial sophistication and business experience to evaluate the merits and risks of the investment;

(d) he has had access to such information concerning the Company as he considers necessary to make an informed investment decision;

(e) he understands that the Shares have not been registered under the Securities Act;

(f) he is capable of bearing the economic risks associated with ownership of the Shares;

(g) he will comply with all applicable beneficial ownership reporting obligations under U.S. securities laws; and

(h) he is not relying upon any representation other than those expressly set forth in this Agreement.

ARTICLE VI: TRANSFER RESTRICTIONS

The Subscriber acknowledges that:

(a) the Shares are being issued in a transaction exempt from registration under the Securities Act;

(b) the Shares constitute restricted securities under Rule 144;

(c) the Shares may not be offered, sold, pledged, assigned, transferred, hedged or otherwise disposed of except pursuant to an effective registration statement or an available exemption from registration; and

(d) appropriate restrictive legends may be placed upon the Shares and the records maintained by the Company’s transfer agent.

ARTICLE VII: NO REGISTRATION RIGHTS

The Subscriber shall not be entitled to any registration rights with respect to the Shares.

The Company shall have no obligation to file or maintain any registration statement for the resale of the Shares.

ARTICLE IX: CONDITIONS TO CLOSING

The obligations of the Parties shall be subject to:

(a) execution of this Agreement;

(b) approval of the transaction by the Board of Directors of the Company;

(c) receipt by the Company of the Subscription Amount;

(d) compliance with applicable securities laws;

(e) compliance with applicable Nasdaq requirements, if any; and

(f) absence of any governmental order or legal prohibition preventing consummation of the transaction.

ARTICLE X: PUBLIC DISCLOSURE

The Parties acknowledge that the Company may be required to publicly disclose the transaction pursuant to applicable securities laws, SEC reporting obligations, stock exchange rules, Form 6-K requirements, or other regulatory requirements.

ARTICLE XI GOVERNING LAW

This Agreement shall be governed by and construed in accordance with the laws of the State of New York without regard to conflict of law principles.

ARTICLE XII: MISCELLANEOUS

This Agreement constitutes the entire agreement between the Parties and supersedes all prior negotiations, discussions and understandings.

No amendment shall be effective unless in writing and signed by both Parties.

This Agreement may be executed in counterparts, including electronically, each of which shall be deemed an original.

IN WITNESS WHEREOF, the Parties have executed this Agreement as of the date first above written.