There is a strong link to the United States in Trinidad, for example many of the covers of the Water and Sewerage Authority (WASA) are supplied from Wabash. However there are a number of local foundries represented.Port of Spain
JW Foundry. Made in Trinidad. Perhaps made by the Williams Foundry.
Covers of this type are widely found across the island.
Sankar Const. Sewer.
Presumably manufactured by a foundry run by a family of Indian descent
Sewer USP. A general cover of uncertain origin. Seen in Couva