ProSomnus SPAC Presentation Deck

Medical Insurance Reimbursement Economics are Attractive for all Stakeholders TYPICAL CARE PATHWAY Evaluation Diagnostic Sleep Study On-Site or At Home Sleep Physician Step 1: Sleep Dentist Orders ProSomnus Device ■ Sleep dentist prescribes ProSomnus oral appliance and places order for device TYPICAL REIMBURSEMENT PROCESS AND ECONOMICS 1. ProSomnus Management Estimates Selection of Treatment Modality Surgery / Upper Airway Stimulation Step 2: ProSomnus Sells Device for ~$500-600 ■ ProSomnus receives order and manufactures device ▪ Average selling price of ~$500-600 CPAP OAT ENT ■ Respiratory Therapist Dental Sleep Provider Therapy Providers Medical Insurance & Pre-Approval Medical Insurance & Pre-Approval Medical Insurance & Pre-Approval O PROSOMNUS SLEEP TECHNOLOGIES Surgery & Calibration CPAP Fitting & Titrating OAT Fitting & Titration Step 3: Sleep Dentist Is Reimbursed by Medical Insurance Provider Commercial Insurance in the US Well-established commercial reimbursement for OAT, with ranges from $2,000 to $3,500¹ ■ Medicare in the US There is no published fee schedule but allowables tend to range from $1,250 to $1,800 based on geography¹ I Reimbursement Outside of the US Reimbursement varies by country Fully reimbursed in many major countries: Germany, France, Netherlands, Belgium, UK and Sweden Partially reimbursed or completely out of pocket in others 10 STRICTLY CONFIDENTIAL

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