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Nadya Chaviera obtains bachelor degree majoring in Economy from Kwik Kian Gie School of Business (formerly Indonesia Institute of Business and Informatics). She also obtains Certified of Public Accountant (CPA), State Registered Accountant (Ak.) and Chartered Accountant. She has experience in assurance and non-assurance services such as financial due diligence for acquisition and quarterly review of Bank Indonesia KPPK report. She also has experiences in many industries. Previously she joined Ernst & Young Indonesia before she joins with PSR.

Rio Simorangkir obtains master degree majoring in Accountancy from Atmajaya University. He also obtains Certified of Public Accountant (CPA), State Registered Accountant (Ak.), Chartered Accountant (CA) and Asean Chartered Professional Accountant (Asean CPA). He has experience in assurance and non-assurance services such as quarterly review of Bank Indonesia KPPK report. He also has experience in many industries. Previously he joined Moores Rowland Indonesia before he joins with PSR.

Purba Sibarani is Managing Partner of PSR and an active member of Indonesian Institute of Certified Public Accountants (IAPI). He has over 30 years of experience in auditing, accounting and advisory services in many industries. Previously he joined Ernst & Young Indonesia before he joins with PSR.