1. In a medium bowl, combine soy sauce, ginger, garlic, and chili paste. Add chicken and let marinate for 15 minutes, stirring often.
2. Set up a gas or charcoal grill for medium heat (350° to 400°; you can hold your hand 5 in. above the cooking grate only 5 to 7 seconds). Put chicken on grill and cover with lid. Cook, turning often, until golden brown, 10 to 15 minutes.
3. In a small bowl, combine honey and hoisin sauce. Using a pastry brush, generously baste chicken wings with honey glaze. Cover grill with lid and cook till honey glaze starts to caramelize, about 3 minutes. Turn chicken wings over and baste again, using the remaining honey glaze. Cook 3 minutes more, being careful not to let the glaze burn, removing pieces from the grill as they're done.
4. Transfer to a platter. Sprinkle with sesame seeds and green onion. Serve any remaining honey glaze on the side.