Prepare the spice mix by combining the ginger, chiles, garlic, and curry powder in a bowl, seasoning generously with salt and pepper. Add the pork strips to the bowl and toss them thoroughly in the spice mixture until every piece is well coated. Cover the bowl and refrigerate for 2 hours to let the flavors penetrate the meat.
Heat a wok or large frying pan over high heat, then add the oil and let it heat until it shimmers. Working in batches to avoid overcrowding, add the marinated pork strips and stir-fry for 5 minutes, tossing frequently, until the meat is browned on all sides and slightly caramelized.
Add the scallions to the wok and stir-fry for 1 minute until they soften and become fragrant. Toss in the red bell pepper and continue stir-frying for another minute. Pour in the tomatoes, coconut, and ¼ cup water, stirring everything together well.
Bring the mixture to a boil, then reduce the heat to low, cover the wok with a lid, and simmer very gently for 15 minutes or until the pork becomes tender and the sauce thickens slightly.
Stir in the chopped cilantro and lemon juice, then taste and adjust the seasoning with additional salt and pepper as needed. Transfer to a serving dish, garnish with fresh cilantro sprigs, and serve hot alongside fluffy rice.