Donggeom Yun

Founder-operator and commercial leader with hands-on experience building and scaling consumer brands in Thailand.

Built

CalX, Thailand's first sparkling protein drink, from concept to market, leading product development, go-to-market, ecommerce, channel expansion, and partnerships. Strong fit for commercial, growth, brand, and market-building roles in startups and challenger brands.

CEO & Founder at Calx Company Limited (2023-04 – Present)

Built CalX from concept to commercial launch, creating Thailand's first sparkling protein drink and bringing the brand into both ecommerce and physical retail channels.

• Generated 7M THB revenue and sold 150,000+ units within the first two years of operation
• Secured 100+ points of distribution across ecommerce platforms, retail stores, gyms, and channel partners in Thailand
• Led end-to-end development and launch of 4 functional SKUs, including formulation coordination, factory sourcing, packaging development, pricing, and commercialization
• Owned go-to-market execution across paid media, ecommerce, retail outreach, partnerships, and launch campaigns as a hands-on solo operator
• Pitched the company on Shark Tank Thailand and secured strategic investment interest, strengthening external validation of the concept and brand
• Managed commercial discussions with distributors, retailers, suppliers, and strategic partners without an agency or dedicated sales team

Managing Director at GA Project Trading Company Limited (2022-04 – 2024-01)

Oversaw business operations across marketing, ecommerce, logistics, customs, and finance for a 20-person import/export trading company.

• Drove 3x revenue growth over two years by identifying new trade routes and expanding beyond the Korea–Thailand corridor into additional markets
• Led cross-functional coordination across operations and commercial teams, aligning execution against growth priorities
• Expanded into new market verticals, reducing revenue concentration risk and broadening the company's commercial footprint

Marketing Manager at GA Project Trading Company Limited (2021-02 – 2022-04)

Led digital marketing and social media across multiple platforms, improving brand visibility and online engagement.

• Increased company revenue by 40% through targeted campaigns, content strategy, and digital channel execution
• Led digital marketing and social media across multiple platforms, improving brand visibility and online engagement
• Produced marketing content in-house across video and visual formats, reducing external dependency and improving execution speed

Head of PR & Partnerships at Grin Green International (2018-03 – 2019-05)

Led all public relations, partnership development, and external communications for a student-led environmental NGO focused on reducing single-use plastics across Thailand.

• Secured institutional partnerships with UNEP, WWF, Thai Environment Institute, and the Ministry of Natural Resources and Environment
• Generated international press coverage across CNN, Reuters, Bangkok Post, and Daily Mail
• Built the foundational partnership and outreach infrastructure that supported the organization's long-term growth across 7 regions and 1,500+ schools

Bachelor of Arts in Political Science – University of Toronto (2019-09 – 2020-12)

High School Diploma – Bangkok Christian International School (2007-09 – 2019-06)