From its inception in 2011, STSK has steadily evolved into a diversified and impactful investment firm. Each milestone highlights the Group's strategic expansion across finance, healthcare, insurance, hospitality, and legal services, underscoring its commitment to driving economic development and enhancing community well-being.

• 2011: Launched Sahakrinpheap Organization, marking STSK’s first step into financial services with the aim of providing accessible microfinance solutions to underserved communities in Cambodia, fostering financial inclusion and economic growth.
• 2014: Ventured into healthcare by founding Sokha Clinic, establishing a foothold in the healthcare sector with a focus on providing essential medical services to local communities.
• 2015: Officially registered as STSK Investment Group, signifying the company’s transition into a diversified investment firm. This year also saw expansions into multiple sectors including Sahakrinpheap Microfinance Plc and STSK Sahakrinpheap Pawn Shop, Mekong Microinsurance, Nitei Niron Notary Public and SP&P Law Firm.
• 2016: Entered the hospitality sector with the launch of ST Exclusive Serviced Apartment, catering to Cambodia’s growing expatriate and professional community with premium accommodations and amenities.
• 2018: Rebranded Sokha Clinic into Orienda Polyclinic, expanding its capacity and services to provide comprehensive healthcare solutions, setting a new benchmark in medical services for the region.
• 2019: Achieved significant recognition with ISO9001:2005 Certification from UE CERT for its quality management systems and received the Best Women’s Health Care Award from the Global Health Award in Singapore, cementing its position as a leader in healthcare excellence.
• 2022: Founded Orienda International Hospital, a state-of-the-art healthcare institution offering advanced medical services, making it one of Cambodia’s leading private healthcare providers.
• 2024: Expanded its healthcare portfolio by investing in Orchid Hospital and Orchid Polyclinic, further reinforcing its commitment to enhancing medical access and quality care in Cambodia.