Remington stopped importing them after just two years, and for good reason. The quality was very poor. Very sticky bolts, feeding issues, and some poor fit and finish.
It may be true that the rifles were made off the same blueprints or in the same factory as the Interarms Mark X, but there is no comparison. The Mark Xs were very well made, and had none of these problems.
The Mark X was a very popular rifle. They are really easy to find in VG+ and Excellent condition, as used rifles.
Don't waste your time with a new one, whether imported by Remington, EAA, or Charles Daly. Buy a used Mark X and you will be very happy. Mark X actions are well respected by gunsmiths and commonly used to build custom rifles.
One thing to be aware of. The distance between the action screws on the bottom of all of these rifles is slightly shorter than a standard military 98 mauser, so if you plan to buy a replacement stock, you have to make sure that it is for a Mark X.
Regards, Mannyrock