In 2013, Senna, the predecessor of Shenzhen Chengbao Technology Co.,Ltd., started to provide olfactory marketing business for many supermarkets, real estate, hotels and stores. It was recognized by the market and customers. In 2019, after five-year accumulation in the market, Shenzhen Chengbao Technology Co., Ltd. was founded, and its self-built factory (Shenzhen Longhua) was established. It has the IFRA certification, and passes MSDS, SGS, 9 routine certifications and other global certifications of technology security, thus providing customers with better service and quality. In 2022, We has become a supplier of COFCO, Poly Group, Vanke Group, China Resources, Texhong, Wyndham, Ramada, Intercontinental Hotels, OCE, SHEIN etc.