Exhibit 99.1

STAK Inc. ANNOUNCES UNAUDITED FINANCIAL RESULTS FOR THE FIRST HALF OF 2026

First Half of Fiscal Year 2026 Financial Summary

First Half 2026 Financial Results

Revenues

Our revenues for the six months ended December 31, 2025 and 2024 were $19.2 million and $17.0 million, respectively. The 13.41 % increase in revenues was mainly driven by the increase in order volumes and increase in sale prices of specialized oilfield vehicles. This increase was partially offset by the decrease in demand for sales of specialized oilfield equipment.

Cost of revenues

Cost of revenues consists primarily of manufacturing and purchase cost of raw materials, depreciation, maintenance, and other overhead expenses. Our cost of revenues increased by $2.2 million, or 18.99%, to $14.0 million for the six months ended December 31, 2025 from $11.8 million for the six months ended December 31, 2024. The increase in cost was mainly attributable to increase in sales volume for specialized oilfield vehicles.

Gross profit

Gross profit remained steady at $5.2 million for the six months ended December 31, 2025 and 2024. Gross profit margin decreased from 30.65% for the six months ended December 31, 2024 to 27.24% for the six months ended December 31, 2025. The decrease in gross profit margin was primarily driven by increase in production cost of newly developed vehicles and our promotional sales policy to expand the market. The gross profit remained steady mainly due to the decrease in unit profit margin was offset by an increase in sales volume.

Selling and marketing expenses

Our selling and marketing expenses consist primarily of commission.

Our selling and marketing expenses slightly decreased by $0.1 million, or 13.76% , to $0.5 million for the six months ended December 31, 2025 from $0.6 million for the six months ended December 31, 2024. The observed revenue expansion reflects our management team’s direct business development efforts rather than commission-based sales channels, thereby maintaining stable commission expenditure.

General and administrative expenses

Our general and administrative expenses consist primarily of professional fees, salaries and welfare expenses, provision for credit losses, and others, which primarily includes depreciation and amortization expenses and rental expenses.

Our general and administrative expenses increased by $0.2 million, or 27.27%, to $1.0 million for the six months ended December 31, 2025 from $0.8 million for the six months ended December 31, 2024, which attributed to the increase in professional fees of $0.7 million and was offset by an decrease of provision for credit losses $0.5 million.

Research and development expenses

Our research and development expenses consist primarily of (i) parts and materials in relation to testing materials; and (ii) design and development expenses, with new technology, materials and suppliers and other research and development related expenses for designing and testing.

Research and development expenses slightly increased by $0.1 million, or 2.69%, to $1.6 million for the six months ended December 31, 2025 from $1.5 million for the six months ended December 31, 2024. The increase in research and development expenses is mainly driven by the stage and scale of our equipment development.

Income tax expense

The People’s Republic of China enterprise income tax (the “EIT”) is calculated based on the taxable income determined under the applicable EIT Law and its implementation rules. Our income tax expense remained steady at $0.2 million for the six months ended December 31, 2025 and 2024.

Net income

As a result of the foregoing, we recorded net income of $1.8 million and $2.0 million for the six months ended December 31, 2025 and 2024, respectively.

About STAK Inc.

STAK Inc. is a fast-growing company specializing in the research, development, manufacturing, and sale of oilfield-specific production and maintenance equipment. The Company designs and manufactures oilfield-specialized production and maintenance equipment, then collaborates with qualified specialized vehicle manufacturing companies to integrate the equipment onto vehicle chassis, producing specialized oilfield vehicles for sale. Additionally, the Company sells oilfield-specialized equipment components, related products, and provides automation solutions. Its vision is to help oilfield services companies reduce costs and increase efficiency by providing the cutting-edge integrated oilfield equipment and automation solutions service. Its mission is to become a powerful provider for the niche markets of specialized oilfield vehicles and equipment in China. For more information, please visit the Company’s website at https://www.stakindustry.com/ir/.

Forward-Looking Statements

Certain statements in this announcement are forward-looking statements. These forward-looking statements involve known and unknown risks and uncertainties and are based on the Company’s current expectations and projections about future events that the Company believes may affect its financial condition, results of operations, business strategy and financial needs. Investors can identify these forward-looking statements by words or phrases such as “approximates,” “assesses,” “believes,” “hopes,” “expects,” “anticipates,” “estimates,” “projects,” “intends,” “plans,” “will,” “would,” “should,” “could,” “may” or similar expressions. The Company undertakes no obligation to update or revise publicly any forward-looking statements to reflect subsequent occurring events or circumstances, or changes in its expectations, except as may be required by law. Although the Company believes that the expectations expressed in these forward-looking statements are reasonable, it cannot assure you that such expectations will turn out to be correct, and the Company cautions investors that actual results may differ materially from the anticipated results and encourages investors to review other factors that may affect its future results in the Company’s registration statement and other filings with the U.S. Securities and Exchange Commission.

For more information, please contact:

STAK Inc.

Investor Relations Department

Email: ir@stakindustry.com

Ascent Investor Relations LLC

Tina Xiao

Phone: +1-646-932-7242

Email: investors@ascent-ir.com

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

STAK INC.

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

(Expressed in U.S. dollars, except for the number of shares)

STAK INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME

(Expressed in U.S. dollars, except for number of shares)

* On June 13, 2025, the Company’s authorized share capital was increased (the “Increase of Authorized Share Capital”), and re-designated from US$50,000 divided into 50,000,000 ordinary shares of par value US$0.001 each to US$100,000 divided into 100,000,000 ordinary shares of per value US$0.001. All share and per share amounts presented in the accompanying consolidated financial statements have been retrospectively adjusted for all periods presented, unless otherwise indicated.

STAK INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

(Expressed in U.S. dollars, except for number of shares)

* On June 13, 2025, the Company’s authorized share capital was increased (the “Increase of Authorized Share Capital”), and re-designated from US$50,000 divided into 50,000,000 ordinary shares of par value US$0.001 each to US$100,000 divided into 100,000,000 ordinary shares of per value US$0.001. All share and per share amounts presented in the accompanying consolidated financial statements have been retrospectively adjusted for all periods presented, unless otherwise indicated.

STAK INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Expressed in U.S. dollars)