According to reports, Facebook owner Meta will contest EU antitrust charges at a closed hearing in a bid to stave off a possible hefty fine after regulators charged it with tying its classified advertisements service to its social network.

The European Commission sent a charge sheet to the world's most popular social network last December, singling out two practices that showed that Meta abused its market power.

According to reports, Meta's tying of its online classified ads service Facebook Marketplace with its social network Facebook gave the former an unfair advantage.

It also took issue with Meta's unfair trading conditions imposed on rival online classified ads services which advertise on Facebook or Instagram.

Meta declined to comment on the hearing during which senior Commission antitrust officials and their peers from national watchdogs will be present to hear its arguments.

"The claims made by the European Commission are without foundation. We will continue to work with regulatory authorities to demonstrate that our product innovation is pro-consumer and pro-competitive," Meta's lawyer, Tim Lamb says.

When Facebook launched in 2004, it changed the way people connect. Apps like Messenger, Instagram and WhatsApp further empowered billions around the world. Now, Meta is moving beyond 2D screens toward immersive experiences like augmented and virtual reality to help build the next evolution in social technology.

The company could face a fine up to 10 percent of its global turnover and an order to change its business practices if found guilty of breaching EU antitrust rules. It had previously sought to settle the case, as per reports.