Exhibit 99.1

ZKH Group Limited Announces Second Quarter 2026 Unaudited Financial Results

SHANGHAI, Aug. 21, 2026 – ZKH Group Limited (“ZKH” or the “Company”) (NYSE: ZKH), a leading maintenance, repair, and operations (“MRO”) procurement service platform in China, today announced its unaudited financial results for the second quarter ended June 30, 2026.

Second Quarter 2026 Operational and Financial Highlights

Mr. Eric Long Chen, Chairman and Chief Executive Officer of ZKH, stated, “Building on a strong start to the year, our business gained further momentum in the second quarter, with GMV and revenue posting their fastest year-over-year growth in the past several quarters. This performance was broad-based across the industries we serve. Core verticals such as communications and electronics, fine chemicals and pharmaceuticals, and utilities continued to outpace overall GMV growth. At the customer level, GMV from SMEs on the ZKH platform increased by approximately 30% year-over-year, while industry key accounts (KAs) and central state-owned enterprises (SOEs) sustained healthy double-digit growth. Meanwhile, AI is becoming increasingly embedded in how we serve customers and operate our business, helping us deepen customer engagement, unlock additional revenue opportunities, and drive greater efficiency. Together, these results reinforce our confidence in our strategy and underscore the strength of our execution. Looking ahead, we expect growth to accelerate further in the second half of the year. As we build on this momentum, we will continue to execute with focus and discipline to deliver sustainable, high-quality growth.”

¹ GMV is the total transaction value of orders placed on the Company’s platform and shipped to customers, excluding taxes, net of the returned amount.

² The marketplace model accounted for 15.0% of GMV in the second quarter of 2026, compared with 11.8% in the corresponding periods of 2025.

³Customers are customers that transacted with the Company during the reporting period, mainly comprised of enterprise customers in various industries.

⁴ Non-GAAP EBITDA is defined as net profit/(loss) before interest expenses, income tax expenses/(benefits) and depreciation and amortization expenses.

⁵ Non-GAAP adjusted net (loss)/profit is defined as net (loss)/profit excluding share-based compensation expenses.

Mr. Jerry Qian Wang, Chief Financial Officer of ZKH, added, “The second quarter marked an important milestone in our earnings trajectory, as we achieved operating profitability for the first time. This achievement was underpinned by our continued scale expansion and stronger operating leverage. GMV increased by 18.9% year-over-year, reflecting ongoing share gains in China’s fragmented MRO market. Gross profit grew even faster, increasing by 20.3% year-over-year, while gross margin on a GMV basis improved by approximately 50 basis points sequentially. At the same time, we maintained disciplined cost management and further expanded AI adoption across our operations, supporting continued efficiency gains. As a result, we delivered a significant bottom-line turnaround: both GAAP net profit and non-GAAP adjusted net profit reversed year-ago losses and showed considerable sequential improvement. Looking ahead, we enter the second half of 2026 in a stronger financial position, and remain confident in our ability to deliver sustainable and profitable growth over the long term.”

Second Quarter 2026 Business Highlights

Second Quarter 2026 Financial Results

Net Revenues. Net revenues were RMB2,443.8 million (US$360.2 million), representing an increase of 12.8% from RMB2,166.8 million in the same period of 2025.

Cost of Revenues. Cost of revenues was RMB2,014.2 million (US$296.9 million), representing an increase of 11.3% from RMB1,809.8 million in the same period of 2025.

Gross Profit and Gross Margin. Gross profit was RMB429.6 million (US$63.3 million), representing an increase of 20.3% from RMB357.0 million in the same period of 2025. Gross margin was 17.6%, compared with 16.5% in the same period of 2025.

Operating Expenses. Operating expenses were RMB425.6 million (US$62.7 million), down 0.8% from RMB428.9 million in the same period of 2025. Operating expenses were 17.4% of net revenues, compared with 19.8% in the same period of 2025.

Income/(Loss) from Operations. Income from operations was RMB4.0 million (US$0.6 million), compared with loss from operations of RMB72.0 million in the same period of 2025. Operating income margin was 0.2%, compared with operating loss margin of 3.3% in the same period of 2025.

Non-GAAP EBITDA. Non-GAAP EBITDA was RMB41.9 million (US$6.2 million), compared with negative RMB38.7 million in the same period of 2025. Non-GAAP EBITDA margin was 1.7%, compared with negative 1.8% in the same period of 2025.

Net Profit/(Loss). Net profit was RMB26.7 million (US$3.9 million), compared with net loss of RMB53.5 million in the same period of 2025. Net profit margin was 1.1%, compared with net loss margin of 2.5% in the same period of 2025.

⁶ Take rate of the marketplace model represents gross profit from the marketplace model divided by GMV from the marketplace model.

Non-GAAP Adjusted Net Profit/(Loss). Non-GAAP adjusted net profit was RMB38.5 million (US$5.7 million), compared with non-GAAP adjusted net loss of RMB36.5 million in the same period of 2025. Non-GAAP adjusted net profit margin was 1.6%, compared with non-GAAP adjusted net loss margin of 1.7% in the same period of 2025.

Basic and Diluted Net Profit/(Loss) per ADS⁷ and Non-GAAP Adjusted Basic and Diluted Net Profit/(Loss) per ADS⁸. Basic and diluted net profit per ADS was RMB0.17 (US$0.02), compared with basic and diluted net loss per ADS of RMB0.33 in the same period of 2025. Non-GAAP adjusted basic and diluted net profit per ADS were RMB0.24 (US$0.04), compared with basic and diluted net loss per ADS of RMB0.23 in the same period of 2025.

Balance Sheet and Cash Flow

As of June 30, 2026, the Company had cash and cash equivalents, restricted cash, and short-term investments of RMB1.67 billion (US$246.5 million), compared with RMB1.92 billion as of December 31, 2025.

Net cash used in operating activities was RMB122.4 million (US$18.0 million) in the second quarter of 2026, compared with net cash used in operating activities of RMB110.7 million in the same period of 2025.

Share Repurchase Update

Pursuant to the Company’s share repurchase program of up to US$50 million, adopted on June 13, 2025 and subsequently extended for another 12 months through June 13, 2027, the Company repurchased an aggregate of approximately 2.49 million ADSs for approximately US$7.67 million from the open market as of June 30, 2026.

Exchange Rate

This announcement contains translations of certain Renminbi (“RMB”) amounts into U.S. dollars (“US$”) at specified rates solely for the convenience of the reader. Unless otherwise noted, all translations from RMB to US$ were made at a rate of RMB6.7851 to US$1.00, the exchange rate in effect as of June 30, 2026, as set forth in the H.10 statistical release of The Board of Governors of the Federal Reserve System. The Company makes no representation that any RMB or US$ amounts could have been, or could be, converted into US$ or RMB, as the case may be, at any particular rate, or at all.

⁷ ADSs are American depositary shares, each of which represents thirty-five (35) Class A ordinary shares of the Company.

⁸ Non-GAAP adjusted basic and diluted net profit/(loss) per ADS is a non-GAAP financial measure, which is calculated by dividing non-GAAP adjusted net profit/(loss) attributable to the Company’s ordinary shareholders by the weighted average number of ADSs.

Conference Call Information

The Company’s management will hold a conference call on Friday, August 21, 2026, at 7:00 A.M. U.S. Eastern Time or 7:00 P.M. Beijing Time to discuss its financial results and operating performance for the second quarter of 2026.

The replay will be accessible through August 28, 2026 by dialing the following numbers:

A live and archived webcast of the conference call will also be available on the Company’s investor relations website at https://ir.zkh.com.

About ZKH Group Limited

ZKH Group Limited (NYSE: ZKH) is a leading MRO procurement service platform in China, underpinned by robust supply chain capabilities and dedicated to serving customers globally through a product-led, agentic AI-driven approach. Through its primary online platforms, the ZKH platform, the GBB platform and the Northsky platform, along with innovative technology and extensive industry expertise, the Company provides bespoke MRO procurement solutions to a diverse and loyal customer base. These solutions encompass hyper-personalized product curation from a comprehensive selection of quality products at competitive prices. Additionally, the Company ensures timely and reliable product delivery through professional fulfillment services. By focusing on reducing procurement costs and addressing management efficiency challenges, ZKH is transforming the opaque MRO procurement process and empowering all stakeholders across the value chain.

For more information, please visit: https://ir.zkh.com.

Use of Non-GAAP Financial Measures

This press release contains the following non-GAAP financial measures: non-GAAP adjusted net (loss)/profit, non-GAAP adjusted net (loss)/profit per ADS, basic and diluted, and non-GAAP EBITDA. The non-GAAP financial measures should not be considered in isolation from or construed as alternatives to their most directly comparable financial measures prepared in accordance with accounting principles generally accepted in the United States of America. Investors are encouraged to review the historical non-GAAP financial measures in reconciliation to their most directly comparable GAAP financial measures.

The Company defines non-GAAP adjusted net (loss)/profit for a specific period as net loss in the same period excluding share-based compensation expenses. The Company defines non-GAAP EBITDA as net loss before interest expenses, income tax expenses/(benefits) and depreciation and amortization expenses. Non-GAAP adjusted net (loss)/profit per ADS is calculated by dividing adjusted net (loss)/profit attributable to the Company’s ordinary shareholders by the weighted average number of ordinary shares during the periods and then multiplied by 35.

The Company presents these non-GAAP financial measures because they are used by the management to evaluate the Company’s operating performance and formulate business plans. The Company believes that these non-GAAP financial measures help identify underlying trends in its business that could otherwise be distorted by the effect of certain expenses that are included in net loss and certain expenses that are not expected to result in future cash payments or that are non-recurring in nature. The Company also believes that the use of these non-GAAP financial measures facilitates investors’ assessment of its operating performance, enhances the overall understanding of its past performance and future prospects and allows for greater visibility with respect to key metrics used by the management in financial and operational decision making.

The non-GAAP financial measures have material limitations as analytical metrics and may not be calculated in the same manner by all companies. The Company’s non-GAAP financial measures do not include all income and expense items that affect the Company’s operations. They may not be comparable to other similarly titled measures used by other companies. In light of the foregoing limitations, you should not consider the non-GAAP financial measures as substitutes for, or superior to, their most directly comparable financial measures prepared in accordance with GAAP. The Company encourages investors and others to review its financial information in its entirety and not rely on a single financial measure.

For more information on these non-GAAP financial measures, please see the table captioned “Reconciliations of Non-GAAP Results” set forth at the end of this press release.

Safe Harbor Statement

This press release contains forward-looking statements. These statements are made pursuant to the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as “may,” “will,” “expects,” “anticipates,” “aim,” “estimates,” “intends,” “plans,” “believes,” “is/are likely to,” “potential,” “continue,” and similar statements. Among other things, the quotations from management in this press release and ZKH’s strategic and operational plans contain forward-looking statements. ZKH may also make written or oral forward-looking statements in its periodic reports to the U.S. Securities and Exchange Commission (the “SEC”), in its annual report to shareholders, in press release and other written materials and in oral statements made by its officers, directors or employees to third parties. Statements that are not historical facts, including statements about ZKH’s beliefs and expectations, are forward-looking statements. Forward-looking statements involve inherent risks and uncertainties. A number of factors could cause actual results to differ materially from those contained in any forward-looking statement, including but not limited to the following: ZKH’s mission, goals and strategies; ZKH’s future business development, financial condition and results of operations; the expected changes in its revenues, expenses or expenditures; the expected growth of the MRO procurement service industry in China and globally; changes in customer or product mix; ZKH’s expectations regarding the prospects of its business model and the demand for and market acceptance of its products and services; ZKH’s expectations regarding its relationships with customers, suppliers, and service providers on its platform; competition in the Company’s industry; government policies and regulations relating to ZKH’s industry; general economic and business conditions in China and globally; the outcome of any current and future legal or administrative proceedings; and assumptions underlying or related to any of the foregoing. Further information regarding these and other risks is included in ZKH’s filings with the SEC. All information provided herein is as of the date of this announcement, and ZKH undertakes no obligation to update any forward-looking statement, except as required under applicable law.

For investor and media inquiries, please contact:

ZKH Group Limited

IR Department

E-mail: IR@zkh.com

Christensen Advisory

Email: zkh@christensencomms.com

ZKH GROUP LIMITED

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

(All amounts in thousands, except share, ADS, per share and per ADS data)

ZKH GROUP LIMITED

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF (LOSS)/PROFIT 

(All amounts in thousands, except share, ADS, per share and per ADS data)

ZKH GROUP LIMITED

RECONCILIATIONS OF GAAP AND NON-GAAP RESULTS

(All amounts in thousands, except share, ADS, per share and per ADS data)