sic_code,industry_slug,is_primary
4900,electric_utilities,1
4911,electric_utilities,1
4931,electric_utilities,1
4932,electric_utilities,1
4941,electric_utilities,1
4950,electric_utilities,1
4953,electric_utilities,1
4955,electric_utilities,1
4959,electric_utilities,1
4961,electric_utilities,1
4991,electric_utilities,1