We actually used Primewells on used cars when they need new tires - and also when we got a Charger or 300C from the auction, we would send it off to a "dub shop" and they too used cheap Chinese tires. Big O, Firestone, and Les Schwab carry these tires.
Some of these guys have been around for a while - Nankang/Sunny, Federal, Kenda, Cheng Shin/Maxxis. Others have tie-ups with more well-known tire companies, I do know Michelin owns part of Beijing Warrior Tire who makes the Warrior lineup for America's Tire/Discount tire. Toyo and Cheng Shin have a joint venture in China too. I just wouldn't trust brands like Wanli, Primewell and Westlake.