1) Cut the celery into 2-inch pieces and slice them lengthwise.
2) Combine the fresh crab meat, sliced tomato, onion, celery, celery leaves, chopped cilantro and red chili. Toss and mix the salad well using your hands.
3) Combine the lime juice, fish sauce, soy sauce and (palm) sugar and stir until the sugar has dissolved. Pour this over the crab salad and toss well.
4) Serve cold.