Siomai King Food Cart Franchise is a franchise package being offered by JC Franchising Inc., a Philippine based company. How is Siomai King different from the other siomai food cart businesses out there? Well it is the first to offer 5 pieces of the shanghai and hongkong siomai for only P25. Apart from the shanghai siomai and hongkong siomai, they also offer their very own japanese siomai and black gulaman for drinks.