ITAA 1997 s under CGT event E4 in section 104-70

Income tax: capital gains: small business concessions: is the part of a payment which is a small business 50% reduction amount a non-assessable part under CGT event E4 in section 104-70 of the Income Tax Assessment Act 1997?

Income tax: capital gains: small business concessions: is the part of a payment which is a small business 50% reduction amount a non-assessable part under CGT event E4 in section 104-70 of the Income Tax Assessment Act 1997 ?