IFJ_5_2024_intermediates_gfisher_basf asahi kasei stretch fibre 800 Ken Norberg November 12, 2024 3 Views BASF is supplying Asahi Kasei’s Roica division with biomass balanced tetrahydrofuran to produce sustainable stretch fiber. Photo courtesy BASF BASF is supplying Asahi Kasei’s Roica division with biomass balanced tetrahydrofuran to produce sustainable stretch fiber. Photo courtesy BASF