Exhibit 99.1 Hesai Group Reports First Quarter 2023 Unaudited Financial Results Quarterly net revenues were RMB429.9 million (US$62.6 million), an increase of 73.0% year-over-year Quarterly LiDAR shipments were 34,834 units, an increase of 402.9% year-over-year SHANGHAI, China, May 23, 2023 (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 th ...