Sept 9 (Reuters) - The U.S. Federal Communications

Commission will terminate its investigation into EchoStar's ( SATS )

5G buildout obligations in the country, according to a

regulatory filing from the company on Tuesday.

The highly expected move follows EchoStar's ( SATS ) $17 billion deal

to sell wireless spectrum to billionaire Elon Musk's SpaceX and

comes about two weeks after it announced a $23 billion spectrum

sale to AT&T ( T ).

In a letter to EchoStar ( SATS ) Chairman Charles Ergen on Monday,

FCC Chair Brendan Carr wrote he had asked the agency staff to

close the investigation and conclude that EchoStar ( SATS ) has satisfied

its buildout obligations.

Carr said he also directed the staff to confirm EchoStar's ( SATS )

exclusive rights to a key spectrum block for ground and

satellite use.

EchoStar ( SATS ), co-founded by telecommunications entrepreneur

Ergen, faced the probe over slow deployment of 5G services.

SpaceX had also asked FCC to review EchoStar's ( SATS ) spectrum

holdings, saying the telecommunications company might be

"warehousing" valuable spectrum, which is not used to provide

services.

The transactions with AT&T ( T ) and SpaceX continue to remain

subject to FCC approval, the company said in the filing.