Cut the lean pork loin into 1-inch cubes and place them in a medium glass bowl.
In a small jar, whisk together the gochujang, coconut aminos, toasted sesame oil, raw honey, minced ginger, minced garlic, rice vinegar, sea salt, and black pepper.
Pour the marinade over the pork, tossing to coat every piece thoroughly, and let it marinate in the refrigerator for at least 30 minutes.
Thread the marinated pork onto wooden or metal skewers, leaving a small space between each cube for even cooking.
Preheat a grill or grill pan over medium-high heat and lightly grease with a high-smoke point oil if needed.
Grill the skewers for 3 to 4 minutes per side, or until the pork is cooked through and the glaze has formed a sticky, dark crust.
Remove from heat and garnish with toasted sesame seeds and freshly sliced green onions before serving.