Financial Performance - Total operating revenues for Q1 2023 were US$51.5 million, a significant increase from US$12.0 million in Q1 2022, primarily due to the relaxation of COVID-19 restrictions in Macau[1] - Total operating revenues for the three months ended March 31, 2023, were $51,467,000, compared to $11,992,000 for the same period in 2022, representing a significant increase[15] - Adjusted EBITDA for Q1 2023 was US$9.1 million, a recovery from negative Adjusted EBITDA of US$26.7 million in Q1 2022[4] - Adjusted EBITDA for the three months ended March 31, 2023, was $9,089,000, compared to $(26,673,000) for the same period in 2022, indicating a positive turnaround[21] - Net loss attributable to Studio City for Q1 2023 was US$38.0 million, improved from a net loss of US$70.2 million in Q1 2022[4] - Net loss attributable to Studio City International Holdings Limited for the three months ended March 31, 2023, was $(38,025,000), compared to $(70,233,000) in the same period of 2022[19] - The operating loss for the three months ended March 31, 2023, was $(26,936,000), an improvement from $(61,894,000) in the same period of 2022[21] Gaming Revenue - Studio City Casino generated gross gaming revenues of US$146.7 million in Q1 2023, compared to US$75.0 million in Q1 2022[1] - Rolling chip volume increased to US$718.5 million in Q1 2023 from US$439.3 million in Q1 2022, with a rolling chip win rate of 1.59%[2] - Mass market table games drop rose to US$480.6 million in Q1 2023, up from US$191.8 million in Q1 2022, with a hold percentage of 24.7%[2] Non-Gaming Revenue - Total non-gaming revenues for Q1 2023 were US$32.7 million, compared to US$20.6 million in Q1 2022[3] Cash and Assets - Total cash and bank balances as of March 31, 2023, were US$368.7 million, down from US$509.7 million at the end of 2022[7] - Total assets as of March 31, 2023, were $3,480,757,000, down from $3,593,522,000 as of December 31, 2022[17] - Cash and cash equivalents as of March 31, 2023, were $368,541,000, down from $509,523,000 as of December 31, 2022[17] - Current liabilities decreased to $194,497,000 as of March 31, 2023, from $247,389,000 as of December 31, 2022[17] Capital Expenditures and Costs - Capital expenditures for Q1 2023 amounted to US$33.1 million[7] - The company incurred pre-opening costs of $5,164,000 for the three months ended March 31, 2023, compared to $342,000 in the same period of 2022[21] Operational Metrics - Average daily rate decreased to $107 from $127, a decline of 15.75%[25] - Occupancy per available room increased to 76% from 33%, a growth of 129.41%[25] - Revenue per available room rose to $82 from $41, an increase of 100%[25] - Average number of table games decreased to 246 from 277, a reduction of 11.21%[25] - Average number of gaming machines decreased to 677 from 712, a decline of 4.91%[25] - Table games win per unit per day increased to $5,879 from $2,725, a growth of 116.67%[25] - Gaming machines win per unit per day increased to $272 from $111, an increase of 144.14%[25] Announcements - The opening of an indoor water park and the Epic hotel tower at Studio City Phase 2 was announced on April 6, 2023[8] Interest Income - The company reported interest income of $2,554,000 for the three months ended March 31, 2023, compared to $304,000 in the same period of 2022[15] Share Information - The weighted average Class A ordinary shares outstanding used in net loss calculation for the three months ended March 31, 2023, was 770,352,700, compared to 527,953,145 in the same period of 2022[19]

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☐ SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ...

Exhibit 99.1 Studio City International Holdings Limited Announces Unaudited Fourth Quarter 2022 Earnings MACAU, March 01, 2023 (GLOBE NEWSWIRE) — Studio City International Holdings Limited (NYSE: MSC) ("Studio City" or the "Company"), a world-class integrated resort located in Cotai, Macau, today reported its unaudited financial results for the fourth quarter and full year ended December 31, 2022. Total operating revenues for the fourth quarter of 2022 were US$4.2 million, compared with total operating reve ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to OR ☐ SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR ...