Found it on amazingribs. Here's the recipe as well as the link to read all the info about it...
4 ounces tomato paste
1 cup sugar
1 cup distilled white vinegar
1 cup pineapple juice
4 teaspoons soy sauce
1 teaspoon powdered ginger
1/4 teaspoon hot sauce or more if you wish
http://amazingribs.com/recipes/other_fun_sauces/mumbo_sauce.html
