Not to be the guy who says actually, but actually Baldwin built the buildings and owned the land but leased them to Remington and after the war converted to Locomotive manufacturing. Prior to this ONLY rifles where made in the new buildings, which only a few remain today. Eddystone borough is in Delaware county, PA, hence Eddystone M1917's, but they where in fact built by Remington trained personal and on Remington tooling.
I think its a tad more complicated. If I am tracking the oddity involved with Eddystone, Remington was the parent company originally

However, it was a Baldwin Executive that built, equipped and managed the plant (werid)

Also an entity called Midvale Steel was involved. which took over the plant in January of 1918 and rifles were delivery until May of 1919 so some were non Remington Corporation made.