The court noted that even if the 1999 amendment to section 46(1), which added the words 'except where any agreement contemplated in section 49 or 51 otherwise provides', could have altered the interpretation of Article 6(ii), it would only have done so if the agreement clearly 'otherwise provided', which it did not. The court observed that while entrepreneurs might hope for stability in customs arrangements, the agreement provided no guarantees against changes, expressly contemplating changes in Malawian legislation and allowing for unilateral suspension or modification by either party with notice. The court commented that the difference in language between Article 6(i) (using Malawian statutory terms of art like 'specified country content') and Article 6(ii) (using 'production cost') indicated that Article 6(i) was governed by Malawian legislation while Article 6(ii) was governed by South African legislation. The court noted that it is trite law that unless language compels it, provisions should not be read so as to render them invalid.