If, before the end of this period of six years, a reduction is made in the customs duties or charges having equivalent effect in respect of products fall ing within heading No 27.09, a corresponding reduction shall be made in any customs duties or charges having equivalent effect imposed on the other products referred to above.
27.09, déanfar laghdú dá réir ar aon dleachtanna custaim nó ar aon mhuirir chomhéifeachta a fhorchuirtear ar na táirgí eile dá dtagraítear thuas.