To prepare pork, add orange juice, ponzu and soy sauce, orange zest, oil, cumin, coriander, and pepper to a 1-gallon plastic zipper lock bag and add pork. Press out air, seal, and marinate for at least 30 minutes up to overnight in the refrigerator. Preheat grill to medium-low (350 to 375°F) and allow pork to sit at room temperature for 30 minutes. Remove pork from marinade and place at a 45-degree angle on an oiled grill, folding thinnest end of pork under itself for more even cooking. Close lid and grill on one side until browned, about 5 minutes. Turn to the next side by one-third and repeat process until each side is browned. Cook just until firm when pressed in the thickest section or an inserted thermometer reads 145°F. Remove from grill and allow to rest 5 minutes. Slice at an angle into 1/2-inch thick pieces.
Meanwhile, make salad by heating a large fry pan or wok on medium heat. Add oil and once it shimmers, add ginger and cook until fragrant, but not browned, about 30 seconds. Add carrots and stir-fry for 1 minute. Add cabbage and scallions and stir-fry until vegetables are tender, about 3 minutes. Add vinegar, sesame seeds, juice, soy sauce, and pepper and cook 1 minute. Stir in cilantro. Spoon salad onto plate and place pork slices on top.
Makes 5 servings