A plantation worker collects cup lump at a collection station in the Firestone Plantation in Margibi County, Liberia. Cup lump is coagulated... Show moreA plantation worker collects cup lump at a collection station in the Firestone Plantation in Margibi County, Liberia. Cup lump is coagulated natural rubber latex (hevea brasiliensis sap) that collects in the latex buckets, and is used to manufacture rubbers. Show less