Trim the tail and fins off of the salmon. Make several shallow cuts across
the salmon's skin. Place salmon on 3 large, slightly overlapping sheets
of aluminum foil.
In a bowl, stir together soy sauce, chile sauce, ginger, and garlic. Mix
in lime juice, lime zest, and brown sugar. Spoon sauce over the salmon.
Fold the foil over the salmon, and crimp the edges to seal.
If using hot coals, move them to one side of the grill. Place the fish
on the side of the grill that does not have coals directly underneath
it, and close the lid. If using a gas grill, place the fish on one side,
and turn off the flames directly underneath it; close the lid. Cook for
25 to 30 minutes. Remove to a serving platter, and pour any juices that
may have collected in the foil over the top of the fish. Sprinkle with
green onions.