Color Grade K Rosin from Canada
Color grade K rosin is dark-colored gum rosin with high resin acid content, used in tire tackifiers and low-end adhesives. Graded by Gardner scale. Under HTS 3806.10.00 as standard rosin acids.
Duty Rate — Canada → United States
15%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Color grade certification essential; darker grades still qualify if >65% acids
• Test for oxidation stability to avoid derivative status