Usa holds an M.A. in economics law from Chulalongkorn University and an LL.B. (2nd Class Honours) in business law from Chulalongkorn University. She is a member of the Lawyers Council of Thailand, the Thai Bar Association and the Intellectual Property Association of Thailand. She started working at LawPlus in May 2007. Usa has extensive experience in corporate, foreign direct investment and intellectual property matters. She has advised clients on investment promotion, trademark registrations in Thailand and in foreign countries, assignment of trademarks and commercial transactions.