Bulgaria imports from United Kingdom (excluding Northern Ireland) · Polymers of ethylene, in primary forms (excl. polyethylene, ethylene-vinyl acetate copolymers, ethylene-alpha-olefins copolymers having a specific gravity of < 0,94, ionomer resin consisting of a salt of a terpolymer of ethylene with isobutyl acrylate and methacrylic acid and A-B-A block copolymer of ethylene of polystyrene, ethylene-butylene copolymer and polystyrene, containing by weight <= 35% of styrene, in blocks of irregular shape, lumps, powders, granules, flakes and similar bulk forms)