Coated carbon nanotubes coated with 0.01-100 parts by weight of at least one type of aromatic condensation polymer selected from the group consisting of wholly aromatic polyamides, wholly aromatic polyesters, aromatic polyester carbonates, aromatic polycarbonates, semi-aromatic polyesters and wholly aromatic azoles, with respect to 100 parts by weight of the carbon nanotubes, as well as a process for their production. Aromatic condensation polymer compositions comprising 0.01-100 parts by weight of the coated carbon nanotubes and 100 parts by weight of an aromatic condensation polymer, and molded articles formed using them.