Ponce Cement - Wikipedia
Ponce Cement, Inc. was a cement and limestone manufacturer in Ponce, Puerto Rico.The company was located at the intersection of PR-123 and PR-500, in Barrio Magueyes. It was founded in 1941 by Antonio Ferre Bacallao, a Puerto Rican industrialist of Cuban origin. In 1963, the company became the first Puerto Rican company to go public and be listed in the New York Stock Exchange.