In a small serving bowl whisk together the rice vinegar, soy sauce, chili oil, garlic, ginger, green onions, sesame oil and picnh of sugar in a bowl; allow saiuce to sit 15 minutes before serving. Store in the refrigerator up to 1 week.
Prepare fritters:
Heat 2 tablespoons oil in a large skillet over medium-high heat.
Season cubed pork tenderloin with salt.
Stir fry pork for 2-3 minutes until sealed.
Remove cooked pork from the pan with a slotted spoon and set aside.
In a large mixing bowl stir together dry ingredients; flour, corn starch, baking powder and chili. Make a well in the center.
Slowly stir in the vegetable oil. Stir in enough water to make a thick, smooth batter. Batter should be thick.
Heat 1-2 inches of oil in a wok or saucepan until almost smoking, then reduce heat slightly.
Toss the cooked pork pieces in the batter to coat them.
Using tongs, carefully add batter coated pork pieces to the oil, a few at a time. Deep-fry until golden brown and heated through.
Cook batter coated pork pieces in small batches. Remove cooked fritters with a slotted spoon and place on a paper towel lined platter to drain while you continue to cook the remaining pieces.
Transfer pork fritters to serving dishes, garnish with chives or green onions and serve with the dipping sauce.