founded in 1947 have 70 years of heritage and expertise in producing the finest rock sugar, black jaggery sugar and red jaggery sugar. Cheng Yew Heng (鍾友兴), represents the family together with friends bring happiness. The business s reinventing itself and going from the Factory direct to consumers. From September 2016, Jewels Rock Sugar Sticks by Cheng has sold all across Singapore and has established a name for itself. These naturally crystallised rock sugar sticks are ideal for pairing with coffee, tea, sparkling water, cocktails or simply as a candy.