Ratna Mariana is an associate at Mochtar Karuwin Komar, Jakarta, Indonesia, and joined the firm in 2016. She specialises in tax litigation and other dispute resolution matters, and advises on various legal issues, including corporate matters and telecommunication law. In cooperation with tax advisers from tax consulting firms, she has handled and represented companies in tax disputes at the level of the Supreme Court on various cases. She obtained her bachelor’s degree in law from the Faculty of Law of, Tarumanagara University in 2011. She also obtained an LLM from the Erasmus University Rotterdam, the Netherlands, majoring in commercial and company law, in 2016.