Combine tomato paste and chili sauce in small bowl.
Spray wok or large skillet with cooking spray; heat over high heat 1 minute. Add shrimp; cook 5 minutes, or until shrimp turn pink, stirring frequently.
Add tomato paste mixture; toss to evenly coat shrimp. Divide shrimp evenly among 4 serving plates. Squeeze 1 lime wedge over shrimp on each plate before serving. Serve with additional lime wedges.