In 1962, the four grandsons of Vicente Vassallo Fiorimonte, an Italian immigrant who established a metal shop in Ponce, Puerto Rico, in 1898, began experimenting with making construction products from a promising new substance, polyvinyl chloride, or PVC.

With an initial investment of $3,000, their decision to start manufacturing products with polyvinyl chloride (PVC) lead to the creation of a purely Puerto Rican company that has subsequently been quite successful in the plastics industry.

[8] The company grew, distributing its products to countries in Central and South America, the Caribbean Basin, the United States, and Canada.

[10] In 1989, Industrias Vassallo, Inc. consolidated its operations into a new 250,000-square-foot (23,000 m2) industrial complex facility located in Barrio Coto Laurel, on the outskirts of Ponce, Puerto Rico.

[12] In 2005, and due to the increasing cost of electricity, the company considered moving its operations to the United States, but the plans were abandoned after successful negotiations with the commonwealth government.

Due to the high cost of electricity in Puerto Rico versus Arkansas, USA, Vassallo saw a savings to the company between 10 and 13 cents per kilowatt in energy bills.