BRUSSELS, July 9 (Reuters) - German lightbulb maker Osram wants the European Commission to extend anti-dumping duties on Chinese energy-saving bulbs which it imposed last October and are due to expire this year.

"Our goal is free and fair trade," said a spokeswoman for Osram, signalling the possible start of another trade row within the European Union.

Last year Osram -- a unit of German engineering group Siemens (SIEGn.DE: Quote, Profile, Research) -- persuaded the European Union to extend anti-dumping duties of up to 66 percent on Chinese energy-saving bulbs, but only by a year instead of the usual five.

The company also withdrew a court case against the European Commission's decision filed with the EU's top court. The outcome of the case had been due on Wednesday and retailers hailed the withdrawal as a win for consumers.

The matter raised concerns among environmentalists who argued the duties should be scrapped because they flew in the face of the EU's drive to promote energy efficiency, a cornerstone of its plans to fight climate change.

The call for the extension was likely to trigger further opposition from campaigners and retailers and from many EU countries.

A European Commission spokesman said Osram must submit a dossier to the EU executive setting out its arguments for a review.

"Then it is examined and we take a decision. They have to go through a formal procedure," the spokesman said.

Osram has until July 16 to make a formal submission to Brussels, the spokesman added.

"If Osram had won its case at the European Court of Justice it could have meant another five years of duties on the so-called compact fluorescent lamps," the British Retail Consortium said in a statement.

"But the Commission must now show some backbone by scrapping all plans to extend these duties," the BRC said.

The anti-dumping duties are due to expire in October but if a review is granted by the European Commission, they could stay in place longer while a decision is taken on whether they are remain justified.

Dutch electronics group Philips (PHG.AS: Quote, Profile, Research) -- which has a bigger manufacturing presence in China than Osram -- and Swedish retailer Ikea both import large amounts of Chinese energy-saving bulbs and opposed extending the duties last year.