The provisions of Article 150-0 B shall apply to capital gains realised from 21 July 1993, the date of publication of privatisation law no. 93-923 of 19 July 1993, on the exchange of the securities referred to in Article 6 of Law 86-912 of 6 August 1986, the participating securities mentioned in amended Article 1 of the same law, as well as the government loan securities mentioned in l’article 9 de la loi n° 93-859 du 22 juin 1993.