BEIJING, March 23 (Reuters) - Australia's Fortescue , the world's fourth-largest iron ore miner, is looking at developing its copper resources but has not made a decision yet, its founder and executive chairman told Reuters on Saturday.

"The company has choices in front of it ... we have a lot of copper options on the table. And when we feel the time is right, we'll pull the trigger," Andrew Forrest said during a visit to Beijing.

However, he said the company was not looking at First Quantum's idled Cobre Panama copper mine. Cobre Panama, one of the world's largest open-pit copper mines, was forced to shut down in December after Panama's top court ruled that its contract was unconstitutional. (Reporting by Amy Lv and Tingshu Wang in Beijing, Tony Munroe in Singapore Editing by Mark Potter)