First the TYM is not China built. TYM Corporation, based in Seoul, South Korea, manufactures TYM tractors. The company was founded in 1951 as Tong Yang Moolsan, but changed its name to TYM in 2020.
My understanding is they produce several different brands sold under different names. I'm not 100% sure of this , but I beleive Manhindra is one of them.
As for how this tractor has held up for me. I bought this from my neighbor when he was moving from NC to TX in September of 2023 with 35 hrs on it. It now has 179 hours. The tractor has always been stored outside & I recently had to remove the battery tray. Remove the rust, coat it with POR15 a rust inhibitor & repaint it I also had to make a new hold down strap. Other than this I have had no issues. This tractor has definately not been abused & most of the use has been mowing my front 1 acre with a finishing mower, using a box scraper on my sand/gravel driveway, & using the front end loader for piling up leaves after I vacumn them with a Cyclone rake. I live at the coast with very sandy soil.