Chawanan Plai-in is a Thai national born in 1991 with work experience in sales, customer service, and management roles. She has a diploma in marketing from Rayong Business Administration Technological College with a GPA of 3.87/4.00. Her most recent role is a sales assistant position at LED SIAM CO., LTD. in Bangkok, where she provides sales support through telemarketing and coordinating with clients.