Daniel Keith Ludwig was an American shipping businessman, who was also involved in many other industries. He pioneered the construction of super tankers in Japan, founded Exportadora de Sal, SA in Mexico and developed it as the largest salt company in the world, built a model community in association with the Jari project, which he pioneered, on the Amazon River in Brazil to produce pulp paper, and had numerous hotels around the world.

Laranjal do Jari is a municipality located in the west of the state of Amapá in Brazil. It is the only municipality in the west boundaries of Amapá, except for a small part of Vitória do Jari. Its population is 35,114 and its area is 30,783 km2, which makes it the largest municipality of Amapá.