In a large plastic, resealable bag, place orange juice concentrate, lemon juice, hoisin, canola oil, ginger and garlic. Seal and shake to mix. Add chicken wings, seal and shake to coat evenly. Refrigerate overnight, turning once or twice.
Grill wings over indirect medium coals, turning regularly, take care not to let them burn! When done, transfer to serving platter and sprinkle with scallions.
