Maxmiller ST Tires

After only 3 yrs. and 3000 miles I had a Maxxis load range E tire with tread separation I looked at the Maxmiler ST tire manufactured by GT Radial. I have not heard of these before but oilfield companies are using them on their work trailers and reporting good durability. Has anyone seen or heard anything on these tires? Any help would be appreciated. I think they are manufactured in Canada but I could be mistaken.