SooperDaddy posted on RV.Net back in 2010
"Since its founding in 1976, Triangle has already acquired a 33 year history manufacturing tires for most applications, ranking 10th among tire manufacturers in the world today.
Triangle produces over 700 kinds of radial tires in more than 160 sizes, and manufactures nearly 400 types of bias tires in more than 100 sizes. Annual production exceeds 10 million units, including over 7 million in radials.
Having obtained a leadership position in the domestic tire market in China..."
They did just have a recall (Sept 2017) on some 15" tires that could not hold air..... found that a curing mold had a protruding screw that caused a hole to be cured into the tires where the shoulder meets the sidewall.
Vast majority where quarantined at either their warehouse or dealer inventory.....only 288 tires were actually recalled.
That speaks well of them....quick to react/correct issue.