KUALA LUMPUR, July 20 (Reuters) - Malaysia is planning to file a World Trade Organisation (WTO) case against the European Union over its restrictions on palm oil biofuel by this year, Deputy Commodities Minister Willie Mongin said on Monday.

"Malaysia is adamant and steadfast in taking legal action against the EU on its discrimination towards Malaysian palm oil," he said during an online conference.

Malaysia is the world's second-largest palm oil producer and exporter.

(Reporting by Mei Mei Chu; Editing by Christian Schmollinger)