The world may not be desperate for Vegemite, but thanks to Canada's language laws, it is available in French. One side of the Canadian jars point out that it's tartinare de levure concentree, which just proves that some things aren't sexier or more attractive in French. Thanks to Pam & Jim for ensuring the jar was available for my Canadian visits. I suspect it'll last until the 22nd Century.
[Much is written about Vegemite's addictiveness or repulsiveness. Only three things matter though: No one's indifferent to the taste. If you didn't grow up on it, you are unlikely to like it. Anyone claiming to be an Aussie outside of Australia can be checked for authenticity by finding their jar of Vegemite in the cupboard. No jar, not an Aussie.]