SEOUL, September 8, 2025 – SK Telecom (NYSE: SKM) announced that it had signed a strategic partnership and investment agreement with TimeTree, a global schedule-sharing platform company, on September 5 to jointly develop AI agent services.
TimeTree operates a schedule-sharing application, also called ‘TimeTree,’ which has approximately 67 million users worldwide and is growing rapidly.
Through this strategic partnership, SK Telecom is planning to leverage its AI agent technologies and commercialization expertise — built through the operation of ‘A.’ (A-DoT) — and apply them to TimeTree. This includes the ‘Agentic Workflow,’ which was -implemented in A. in August 2025. The partnership marks the first application of SK Telecom’s AI agent technology to an overseas service.
Agentic Workflow is a method in which an AI agent goes beyond simply executing a user’s request: it sets goals based on the user’s activity history and sequentially plans and executes the necessary steps. The framework is widely acknowledged in the industry as a key method for enhancing AI agent performance.
SK Telecom plans to implement features such as proactive recommendations, and personalized calendar management in the TimeTree app. Looking ahead, the company aims to evolve the service into an active AI platform capable of suggesting optimized activities and events tailored to users’ schedules, usage patterns and preferences.
In addition, SK Telecom will invest JPY 2.2 billion in TimeTree. The company views TimeTree’s extensive data assets and global user base as crucial resources for advancing its AI agent services and expanding into overseas markets. Through this investment, SK Telecom aims to establish a strong strategic foothold in the global AI market.
“The essence of TimeTree’s AI agent is to use schedules as natural action triggers. SK Telecom recognized both our unique approach and the value of our 67-million-user dataset, making SK Telecom not only our lead investor but also a true strategic partner,” said Chajin Park, CEO of TimeTree. “This alliance marks a turning point as we expand from Japan to Korea and beyond, leading a new paradigm of schedule-centered AI.”
“Partnering with TimeTree offers SK Telecom a powerful opportunity to extend our AI agent technologies into global markets,” said Ryu Young-sang, CEO of SK Telecom. “Together, we will expand the AI ecosystem across Korea, Japan and beyond.”