Preheat the oven to 375 degrees F. Lightly grease a rimmed baking sheet. Set aside a piece of non-stick foil (or spray a piece of foil with non-stick cooking spray). Bring the water to a boil in a small saucepan over medium-high heat. Add the sugar, five-spice powder, and salt and stir until the sugar is dissolved. Stir the pecans into the water mixture and let boil, stirring frequently, for one minute. Pour the pecans and syrup onto the prepared baking sheet and spread the pecans out evenly using a spoon or spatula. Place the baking sheet in the oven and bake at 375 degrees F for 8-10 minutes or until the nuts are golden brown. Remove the pecans from the baking sheet using a slotted spoon or spatula and place in an even layer on the piece of foil. Let them cool completely then store in an airtight container for up to 10 days.