From the factory HANKUK SEKURIT is what's installed (at least on my 2010). For OEM equivalent/OEM replacement it's most likely XYG. The sectors are different and the years between each round of contract negotiations are different. For example, you can have ABC company supply your factory windshields for the production run and put the H logo on them. But on the "Service" side of manufacturing, there's no H and only ABC will be on the windshield. Say in year 2009-2013 ABC company had the best price and overall deal as a supplier, but then in 2014 they were outbid by DEF company so the car manufacturer goes with DEF instead. Again, H logo will be there for cars off the factory floor, but won't be there for replacement windshields even though they come out of the same glass factory. Also, some companies have different names to separate the OEM supply and the Service/
Aftermarket supply. It gets very confusing very quickly since there's so many variables and different regions use different glass manufacturers for OEM and Service/
Aftermarket. My Wifes KIA had a windshield that just had KIA with no actual brand name. I had to look up the DOT code to see who and where the windshield was manufactured (I can't recall off hand now). She got a replacement and it was XYG, it was clearly one that slipped through Quality Control. She got another replacement and it was made by Xinyi, it was perfect. BUT, it's the company that also makes XYG. Which one is the right one? I'll never know.