In a bowl, mix the ginger, garlic, hoisin sauce, oyster sauce, dark soy sauce, sesame oil, Chinese five-spice powder, 2 tbsp. brown sugar, and 4 tbsp of runny honey.
Place the pork in a bowl or Ziploc bag. Add the marinate and close or cover it. Let it sit in the fridge for at least 3 hours but ideally overnight.
Take the pork out of the fridge. Preheat the oven to 350°F (180°C).
Take the roasting pan, fill it with boiling water but don’t let it touch the pork. Place the pork on the roasting rack and place it in the middle rack of the oven to cook.
In the meantime, pour the remaining sauce into a saucepan. Add 2 tbsp of honey and 1 tbsp of brown sugar and bring to a simmer. Let it simmer until the sauce thickens, about 3-5 minutes. Baste every 10 minutes with the marinade and roast for a total of 30 minutes (internal temperature: 150°F/65°C).
Let it sit for a few minutes then slice to serve.