Preheat oven to 350 degrees. Line a rimmed baking sheet with parchment paper.
Season the pork tenderloin with salt, black pepper, and half the jerk seasoning.
Heat 1 tablespoon olive oil in a nonstick skillet or saute pan over medium-high heat. Add the pork tenderloin, reduce the heat to medium, and brown for 2-3 minutes per side. Transfer to the parchment paper-lined baking sheet and bake for 12-15 minutes or until an instant-read thermometer registers 145 degrees. Tent to keep warm.
While the pork tenderloin finishes in the oven, heat the remaining olive oil in the skillet you used to brown the pork over medium heat.
Add the shallot and cook for 1-2 minutes or until it softens.
Add the red bell pepper, jalapeno pepper, ginger and garlic. Cook for 2-3 minutes or until softened.
Add the broth, lime juice, honey, hot sauce and mango.
Bring to a boil. Reduce heat to medium-high and simmer for 5-6 minutes or until sauce reduces and thickens slightly.
Stir in the butter if using. Add the chopped cilantro and season to taste with salt and black pepper.
Slice the pork tenderloin across/against the grain and place on a platter.
Top with the mango sauce. Serve with lime wedges if desired.