Shell and devein the medium shrimp, butterfly them, then marinate with the seasoning for 10 minutes. Mix Lee Kum Kee Sauce for Sweet & Sour Pork / Spare Ribs with the thickening sauce and set aside.
Heat the wok over high heat. Add 2 tbsp of oil and swirl to coat the surface evenly. Add the shrimp and stir-fry for 1–2 minutes. Remove and set aside.
Heat the remaining 1 tbsp of oil, then stir-fry the chili and sweet pepper for about 10 seconds until fragrant. Add the shrimp, lychees, and sauce mixture, then stir-fry until evenly coated and heated through. Ready to serve.