Exhibit 99.1

Hesai Group Reports Second Quarter 2025 Unaudited Financial Results

Quarterly net revenues were RMB706.4 million (US$98.6 million)¹

Quarterly lidar shipments were 352,095 units

Quarterly net income was RMB44.1 million (US$6.2 million)

SHANGHAI, China, Aug. 15, 2025 (GLOBE NEWSWIRE) -- Hesai Group (“Hesai” or the “Company”), (NASDAQ: HSAI), the global leader in three-dimensional light detection and ranging (lidar) solutions, today announced its unaudited financial results for the three months ended June 30, 2025.

Management Remarks

“The second quarter marked a surge in our growth momentum with net revenues soaring over 50% year-over-year and net income exceeding RMB40 million, beating our GAAP breakeven target—powered by strong customer demand and sharp operational execution,” said Yifan “David” Li, Hesai’s Co-Founder and CEO. “In ADAS, the ‘Hesai Inside’ label is now widely recognized as a mark of advanced perception and safety in intelligent vehicles. Throughout the quarter and in recent weeks, we secured a substantial number of new design wins through 2026 for 20 models from 9 leading OEMs. Notably, we achieved a platform win for multiple 2026 models with one of our top 2 ADAS customers, further cementing lidar as a standard feature across this customer’s model lineups. These ADAS design wins will supercharge our order book, highlighting how lidars have emerged as a standard feature and are fueling mass-market adoption. Globally, we entered the C-sample stage with a top European OEM, keeping us on track for full-scale production and commercial launch expected in 2026. We also secured a new design win with Toyota, one of the world's largest automakers, with mass production targeted for 2026, underscoring our expanding global footprint and world-class competitiveness. In the Robotics space, we ranked No.1 in lidar shipments in China for the first half of 2025, according to Gaogong Industry Research Institute (“GGII”). Our Robotics business is riding the wave of Physical AI as lidars become essential for AI to perceive the dynamic world and the best sensor for robotic mobility. This evolution will unlock vast new market opportunities ahead, which we’re uniquely positioned to capitalize on and lead—leveraging our automotive-grade expertise, global scale, and proven deployments across diverse industries. The stage is set. The lidar is on. The future—digital, physical, and AI-driven—has never looked sharper.”

“We are pleased to report another outstanding quarter, highlighted by strong revenue growth and a remarkable improvement in profitability,” said Mr. Andrew Fan, Hesai’s CFO. “Second-quarter net revenues increased by 54% year-over-year to RMB706.4 million (US$98.6 million), marking our fifth consecutive quarter of year-over-year growth and reflecting sustained momentum across both our ADAS and Robotics businesses. Our bottom line significantly outperformed our GAAP breakeven target, delivering net income of RMB44.1 million (US$6.2 million), compared to a net loss of RMB72.1 million in the same period last year. In the first six months of 2025, total shipments have already surpassed those of full-year 2024. According to Gasgoo, we ranked first in installation volume among long-range lidar suppliers during this period. Net income for the first six months reached RMB26.5 million (US$3.7 million), again beating our expectations.This substantial progress demonstrates our disciplined execution, effective cost control, and the powerful operating leverage inherent in our business model. Together, these results reinforce our confidence in driving sustainable growth and creating long-term value for our shareholders.”

¹ All translations from RMB to USD for the second quarter of 2025 were made at the exchange rate of RMB7.1636 to US$1.00, the exchange rate on June 30, 2025, set forth in the H.10 statistical release of the Federal Reserve Board.

Operational Highlights

Financial Highlights for the Second Quarter of 2025

(in RMB millions, except for per ordinary share data and percentage)

² See “Use of Non-GAAP Financial Measures” and “Unaudited Reconciliation of GAAP and Non-GAAP Results” included in this release for further details.

About Hesai

Hesai Technology (Nasdaq: HSAI) is a global leader in lidar solutions. The company’s lidar products enable a broad spectrum of applications including passenger and commercial vehicles ("ADAS"), as well as autonomous driving vehicles and robotics and other non-automotive applications such as last-mile delivery robots and AGVs ("Robotics"). Hesai seamlessly integrates its in-house manufacturing process with lidar R&D and design, enabling rapid product iteration while ensuring high performance, high quality and affordability. The company’s commercially validated solutions are backed by superior R&D capabilities across optics, mechanics, and electronics. Hesai has established offices in Shanghai, Palo Alto and Stuttgart, with customers spanning more than 40 countries.

Use of Non-GAAP Financial Measures

To supplement Hesai's consolidated financial results presented in accordance with GAAP, Hesai uses the following measures defined as non-GAAP financial measures by the SEC: income/loss from operation excluding share-based compensation expenses, net profit/loss excluding share-based compensation expenses, net profit/loss attributable to ordinary shareholders excluding share-based compensation, and net income/loss per ordinary share attributable to ordinary shareholders excluding share-based compensation. The presentation of these non-GAAP financial measures is not intended to be considered in isolation or as a substitute for the financial information prepared and presented in accordance with GAAP. For more information on these non-GAAP financial measures, please see the tables captioned “Unaudited Reconciliations of GAAP and Non-GAAP Results” set forth at the end of this release.

Hesai believes that these non-GAAP financial measures provide meaningful supplemental information regarding its performance and liquidity by excluding share-based compensation expenses that may not be indicative of its operating performance from a cash perspective. Hesai believes that both management and investors benefit from referring to these non-GAAP financial measures in assessing its performance and when planning and forecasting future periods. These non-GAAP financial measures also facilitate management's internal comparisons to Hesai's historical performance and liquidity. Hesai believes these non-GAAP financial measures are useful to investors in allowing for greater transparency with respect to supplemental information used by management in its financial and operational decision making. A limitation of using these non-GAAP financial measures is that they exclude share-based compensation expenses that have been and will continue to be for the foreseeable future a significant recurring expense in our business. Management compensates for these limitations by providing specific information regarding the GAAP amounts excluded from each non-GAAP financial measure. The accompanying tables have more details on the reconciliations between GAAP financial measures that are most directly comparable to non-GAAP financial measures.

Exchange Rate Information

This announcement contains translations of certain RMB amounts into U.S. dollars at a specified rate solely for the convenience of the reader. Unless otherwise noted, all translations from RMB to U.S. dollars and from U.S. dollars to RMB are made at a rate of RMB7.1636 to US$1.00, the exchange rate on June 30, 2025, set forth in the H.10 statistical release of the Federal Reserve Board. The Company makes no representation that the RMB or U.S. dollars amounts referred could be converted into U.S. dollars or RMB, as the case may be, at any particular rate or at all.

Safe Harbor Statement

This announcement contains forward-looking statements. These statements are made under 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 “will,” “expects,” “anticipates,” “aims,” “future,” “intends,” “plans,” “believes,” “estimates,” “confident,” “potential,” “continue” or other similar expressions. Among other things, the business outlook and quotations from management in this announcement, as well as the Company’s strategic and operational plans, contain forward-looking statements. The Company 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 releases 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 but not limited to statements about the Company’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: the Company’s goals and strategies; the Company’s future business development, financial condition and results of operations; expected changes in the Company’s revenues, costs or expenditures; the trends in, expected growth and the market size of the ADAS and Robotics industries; the market for and adoption of lidar and related technology; the Company’s ability to produce high-quality products with wide market acceptance; the success of the Company’s customers in developing and commercializing products using its solutions, and the market acceptance of those products; the Company’s ability to introduce new products that meet its customers’ requirement; the Company’s expectations regarding the effectiveness of its marketing initiatives and the relationship with its third-party partners; competition in the Company’s industry; the Company’s ability to recruit and retain qualified personnel; relevant government policies and regulations relating to the Company’s industry; the Company’s ability to protect its systems and infrastructures from cyber-attacks; general economic and business conditions globally and in China; and assumptions underlying or related to any of the foregoing. Further information regarding these and other risks is included in the Company’s filings with the SEC. All information provided in this press release and in the attachments is as of the date of this press release, and the Company undertakes no obligation to update any forward-looking statement, except as required under applicable law.

For investor and media inquiries, please contact:

Hesai Group

Yuanting “YT” Shi, Head of Capital Markets

Email: ir@hesaitech.com

Christensen Advisory
Tel: +86-10-5900-1548
Email: hesai@christensencomms.com

Source: Hesai Group

HESAI GROUP

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

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

HESAI GROUP

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

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

HESAI GROUP

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

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

HESAI GROUP

UNAUDITED RECONCILIATIONS OF GAAP AND NON-GAAP RESULTS

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

HESAI GROUP

UNAUDITED RECONCILIATIONS OF GAAP AND NON-GAAP RESULTS

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