The 21-year-old stopper, who is a product of the Wrexham academy, was a target for Robins' chief Darren Ryan, but has pledged his future to the Plas Kynaston outfit after making 36 Welsh Premier appearances to date.
"We're delighted he's staying. It shows he's committed to the club and not go after the money as I'm sure Newtown would have been able to offer more," says Jones.
"I think he's made the right choice as we can offer him regular first team football and that might not necessarily be the case at Newtown.
"By the end of the season he could have played in the region of 50 or 60 Welsh Premier League games which is a good record for a young lad of his age.
"If he keeps doing what he has been doing I'm sure he has a good chance of being at a top six Welsh Premier side in the future."
Phillips has also clarified the situation surrounding midfielder Kieran Quinn, who was reported to have left the club.
"Kieran has made himself unavailable for the foreseeable future as he has just moved house and wants to spend time renovating it," says Phillips.
"He's a contracted player and hasn't asked to have the contract terminated, meaning he can't play elsewhere."