Ang Hari ng Siomai! What makes Siomai King stand out among its competitors? The answer is simple. Siomai King is the first and original that has 5 pieces siomai in one serving. It serves the sought-after shanghai, hong kong and japanese siomai for only P25 per serving. With its good taste and enticing smell, you would not go wrong with Siomai King’s superb siomai treats.