BRUSSELS, Nov 25 (Reuters) -

Glass maker Corning has offered to scrap all

exclusive clauses in its deals with mobile phone makers and raw

glass processing companies to end an investigation, EU antitrust

regulators said on Monday, a move which would stave off a

possible hefty fine.

The U.S. company, which sells a break resistant glass

used as a cover for mobile phones, tablets and smart watches

under the Gorilla Glass brand, counts Samsung, Sony ( SONY )

, Google, HP, Dell and Nokia

as its customers. Apple ( AAPL ) is reportedly a

customer too.

The European Commission earlier this month launched an

antitrust investigation over Corning's exclusive supply deals

that may exclude rival glass producers from large segments of

the market.

The EU competition enforcer said Corning has now proposed to

waive all exclusive dealing clauses in its agreements and will

not require mobile phone makers to buy Alkali-AS Glass from

Corning nor offer them any price advantages conditional on such

requirements.

As part of its proposed concessions, Corning will also drop

requirements that mobile phone makers and raw glass processing

companies buy more than 50% of their demand from the company.

The Commission said third parties have six weeks to

provide feedback to the offer before deciding whether to accept

the concessions with any finding of antitrust breaches.

Corning's offer would for nine years if accepted.

Antitrust violations can cost companies as much as 10% of

their global annual turnover.