MOUNT PLEASANT, ON PURPOSE

Some plant sites are inherited. Mount Pleasant was chosen, and the reasons it was chosen in 1969 are the same reasons it works in 2026.

International Chemicals started in Houston in 1950, close to the Frasch mines that supplied the industry then. By the late 1960s the supply map was changing: recovered sulfur from gas processing was coming on line across east Texas, and the smart money moved toward it.

The 1969 site at Mount Pleasant sat on the railroad, next to the brand new Interstate 30, with recovered sulfur in every direction. Houston closed in 1972, the Ohio plant in 1987, and everything consolidated where the logistics were. The company became International Sulfur Inc. in 1990 and joined the GGS family in 1997.

Today International Sulphur grades load onto the same rail and the same highway, 125 miles east of Dallas. Good site picks do not age.