To make Maui marinade, in a blender put soy sauce, canned pineapple, sesame oil, ginger, garlic, green onions, lime juice, vinegar and brown sugar. Blend until you have a smooth sauce. Set aside any extra pineapple pieces from the can as a garnish for later.
Remove membrane from the back of the ribs, toss ribs in Maui marinade and sesame seeds. Let marinate for 15 minutes or up to 24 hours.
Place ribs on a rack over a pan with water. Then place on grill and cook low and slow until ribs are tender. About 2.5-3 hours.
When ribs are tender, turn heat on grill to high to let the ribs caramelize. Garnish with extra pineapple pieces if desired. When ribs are done, remove from grill and serve.