The Only current Made in the USA jacks are Hein Werner, Milwaukee, Weaver, Us Jack (some) and GRAY. I would look into Omega jacks they are imports and the same parent company of Hein Werner (Shinn Fu) but i have a few in my shop and they are solid made jacks. To clarify im not saying the Napa jack is the same as the $49 dollar harbor freight but it is a import and you can find a red Torin, Mountain Grove, Younameit for a considerable cheaper price that is identical to it. The warranty may be better but deep down if you do some up close and personal inspections you will see its true colors. Dont be fooled into thinkng that the blue Napa jacks are any better than the Harbor freight etc.
Buy it from a retailer that has a good warranty exchange etc. If your intentions are to buy a Overseas jack. Ive posted this many times on here, There are only a few Manufacturers of these jacks and they sell to 100's of different retailers and they are priced all over the place.