products with mfn rates higher than were subject to a rate in and entered chinaasean duty free starting in the agreement on tvade in goods between asean and china was signed in november and set out the modalities for tariff reductions and elimination for tariff lines categorised in either the normal track or the sensitive track commencing on july tariff lines on the normal track covering of tariff lines were gradually reduced and traded duty free from january for asean and china or for asean products on the sensitive track were further categorised into sensitive and highly sensitive lists