From Avalara LandedCost, by the LandedCost Research Team, updated June 1, 2017.
This page provides an overview of the basic import duty rates applied to goods that fall under the classification code 27141000 in Panama. This product category is defined to include:
"Bituminous or oil shale and tar sands"
Panama is involved in a total of 2 trade agreements, and is associated with 1 country group.